A plant manager in Bavaria

Klaus Hartmann has run an 800-tonne HPDC unit south of Munich for fourteen years. His machines produce structural brackets and subframe nodes for a German OEM. Twenty-two parts per platform. His line runs three shifts. His margin sits at seven per cent, which in European die casting means you are doing well.

In early 2024, a letter arrives from his OEM procurement team. The next EV platform will use a single rear underbody giga-casting produced in-house on a machine the OEM has already ordered from an Italian equipment builder. His twenty-two parts are no longer required. His 800-tonne press is no longer relevant to that platform.

He is not a victim of poor management. His quality record is clean. His delivery performance is strong. His pricing has been competitive for more than a decade.

He is a victim of physics. A 9,000-tonne press operating at 1,500 bar injection pressure makes his entire process category economically irrational. One shot replaces twenty-two components, collapses twenty-two logistics lines into one, and removes twenty-two sets of tooling from the OEM's cost base. No amount of operational excellence closes that gap.

Elon Musk put it plainly when Tesla announced the programme: "We're trying to make the car manufacturing process much simpler, the way you would design it if you were starting from scratch." That sentence described the obsolescence of an entire supply chain tier. Klaus Hartmann's story is currently unfolding in every automotive die-casting market worldwide.

The mathematics of part consolidation

The single monolithic aluminium giga-casting that replaced approximately 171 stamped parts in the Tesla Model Y - eliminating 1,600 welds and 300 assembly robots. (Photo: Wikimedia Commons / CC BY-SA 4.0)

The origin point is 2019. Tesla proposed giga-casting technology and used it to produce the rear floor plate of the Model Y, reducing the number of parts from 70 to just 1 (Tesla Battery Day, September 2020; Reuters, September 2020). That single engineering decision stripped approximately 300 assembly robots from the factory floor (Tesla Battery Day 2020; Castman, 2025) and compressed manufacturing cycle time from 120 minutes to roughly 80 to 90 seconds, enabling 40 to 45 castings per hour (Wikipedia Giga Press; LinkedIn, Jake Hall, February 2021; Torque News, June 2022). It set in motion the largest structural change in automotive manufacturing since the introduction of the moving assembly line.

The machines that do this are extraordinary in scale. IDRA, the Italian die casting equipment manufacturer now owned by China's LK Group, produces the dominant giga-press lines in the world. Their machines range from 19.7 x 7 x 6 metres to 22 x 8 x 6.5 metres, with clamping forces from 5,500 to 9,000 tonnes. The units installed at Tesla's Gigafactory Texas are approximately 19.5 metres long, 7.3 metres wide, and 5.3 metres high - a single machine weighs 410 tonnes (IDRA official catalogue; Wikipedia).

Tesla replaced approximately 171 stamped parts with two large castings in the Model Y, eliminating 1,600 welds. New model development timelines have compressed from 48 months to 18 to 24 months (Yang et al., Journal of Alloys and Compounds, 2025). A well-optimised giga-press cell processes up to 45 castings per hour (Torque News, June 2022; LinkedIn, Jake Hall, 2021).

Volvo's megacasting for the EX60 replaces 60 to 100 welded steel components with a single aluminium casting, delivering 15 to 20 per cent section weight reduction and a 35 per cent cost reduction versus a mixed steel-aluminium structure (Chalmers University, January 2026; LinkedIn, Luca Greco, January 2026; Euroguss, February 2026). Tesla's plan to replace a 370-component underbody assembly - confirmed at Battery Day 2020 and reported by Design News, March 2025 - is projected to reduce vehicle weight by 30 per cent and manufacturing cost by up to 40 per cent by Tesla's own estimate; independent analyses by Light Metal Age (July 2023) put achievable savings at 20 to 30 per cent.

The machine evolution has been rapid. Tesla introduced 6,000-tonne machines in 2020. The industry progressed from 9,000 tonnes to 12,000 tonnes with the introduction of double injection systems, and then to 16,000 tonnes. Machines of 20,000 tonnes have already been announced - based on announced specifications, these are expected to be approximately 30 metres long and require up to 30 MW of peak electrical power. The first dedicated Giga-Casting Congress was held in Germany in March 2025. By 2027, integrated die casting is expected to cover battery case upper covers, middle floors, and full underbody assemblies in a single production cell.

The global HPDC market, valued at USD 73 billion in 2023, is restructuring at a 6.5 per cent annual growth rate. This rapid adoption has shifted roughly USD 2.2 billion away from traditional stamping equipment towards ultra-large die casting cells globally (ANP Consulting, January and April 2024).

The complete OEM adoption map

Tesla, the pioneer. Tesla began using the IDRA OL 6100 CS Giga Press in late 2020 for chassis parts on the Model Y. The current configuration uses a three-piece underbody design. Giga Casting 2.0 - the full single-piece underbody - is under active development and is expected to reduce total part count from approximately 400 to just a few components (Reuters, September 2020; Tesla Battery Day transcript). Tesla's key process innovation was using 3D-printed sand binder-jet prototypes to validate die designs at a fraction of the cost of conventional metal tooling iterations.

BYD, the fast follower. BYD installed 5,000-tonne and 9,000-tonne die casting equipment at their new industrial park in Shenzhen, with LK Machinery as the equipment supplier. The initial investment was RMB 390.5 million - approximately USD 54 million - covering one 9,000-tonne giga press and its supporting equipment (LinkedIn, Luca Greco, January 2025; Industry Arsenal, January 2025; X/Twitter, January 2025). BYD uses heat-treatment-free aluminium alloys and targets both front and rear underbody giga-castings across their EV platforms.

Volvo, the Western adopter. Volvo was the first European OEM to formally commit to giga-casting in 2022. At the Torslanda facility in Sweden, Volvo selected Bühler's 8,400-tonne Carat 840 machine (LinkedIn, Luca Greco, January 2026; Industry Arsenal, November 2025). For the new Košice facility in Slovakia, orders were placed in November 2023 for two 9,000-tonne IDRA machines, confirming that competitive pressure between equipment suppliers is now producing real differentiation in procurement decisions (Repairer Driven News, November 2023). The EX60 megacasting replaces 60 to 100 stamped components with a single aluminium casting (Chalmers University, January 2026; Volvo official YouTube, January 2026).

Toyota, the conservative convert. Toyota plans to adopt megacasting for EVs going on sale in 2026. The vision is a three-segment body with giga-castings for the front and rear sections. Toyota's Shanghai factory will be the first to implement this configuration. When Toyota adopts a manufacturing technology, it indicates that the technology has entered the mainstream.

Hyundai, the delayed adopter. Hyundai's hypercasting programme, originally planned for 2026, has been pushed back by two years, reflecting the genuine engineering difficulty of deploying this technology outside China and the United States, where giga-scale casting infrastructure is more mature.

NIO, ZEEKR, Xpeng, and Xiaomi - China's native Giga-Casters. These are now among the most aggressive adopters globally. Xpeng is expanding a 16,000-tonne die casting machine for next-generation CIB and centre-floor integrated die casting. Xiaomi developed its proprietary Titan Metal alloy specifically for giga-casting, described as highly moldable with excellent fluidity and a stable balance between strength and toughness.

Ford, the American parallel. Ford is integrating battery systems and casting several structural sections simultaneously on their novel EV platform, branding the approach unicasting.

General Motors, the alternative path. For lower-volume applications, GM applied mega precision sand casting to combine underbody components in the Cadillac CELESTIQ, reducing part count by approximately 40 per cent. GM's UniCast alloy tolerates higher iron content, enabling 100 per cent recycled aluminium feedstock.

Tier 1 suppliers entering the field. Handtmann in Germany was the first Tier 1 supplier globally to invest in giga-casting, purchasing a 6,100-tonne machine. GF Altenmarkt in Austria operates one 6,100-tonne machine and is expected to commission a second in 2026 or 2027. Linamar was the first North American Tier 1 to make the investment. OEMs still account for approximately 80 per cent of the giga-casting investment in Europe. The Tier 1 window is open, but it is closing.

The machine makers

The IDRA OL 9,000-tonne Giga Press is located at IDRA's facility in Italy. IDRA General Manager John Stokes (left) and teardown analyst Sandy Munro (right) provide scale. This machine produces single-piece aluminium underbody castings for Tesla. (Photo: Wikimedia Commons / CC BY-SA 4.0)

IDRA (Italy), owned by LK Group of China, was a niche manufacturer before Tesla selected them as the Model Y launch partner. They build 9,000-tonne machines for Tesla and are developing 20,000-tonne systems. LK Group's Chinese ownership gives IDRA simultaneous access to European OEM relationships and the Chinese EV market - a structural advantage that Western-owned competitors cannot easily replicate.

Bühler Group (Switzerland) is the principal competitor in Europe and is gaining market share. Volvo selected Bühler's 8,400-tonne Carat 840 for Torslanda. For the new Košice facility in Slovakia, Volvo chose two 9,000-tonne IDRA machines, ordered in November 2023, confirming that competitive pressure between equipment suppliers is now producing real differentiation in procurement decisions (Repairer Driven News, November 2023).

LK Machinery (China) supplies giga-presses to Tesla Giga Shanghai and is BYD's chosen supplier. As the parent company of IDRA, the LK Group holds effective presence on both sides of the global equipment trade.

Haitian (China) recently put into production one of the world's largest thixomolding machines, the HMG3600, in partnership with Chongqing University (Yang et al., Journal of Alloys and Compounds, 2025). Their Chinese cost structure provides them the potential to undercut IDRA and Bühler as the technology standardises over the next decade.

Yizumi and Ube Machinery are both expanding giga-press capacity in response to accelerating Chinese domestic demand. Yizumi's equipment now appears in peer-reviewed giga-casting literature, indicating their machines are under academic scrutiny.

A 9,000-tonne giga press costs between EUR 6 and 20 million per unit, depending on specification (ANP Consulting, April 2024). The total cell investment - covering die tooling, peripheral equipment, die spraying systems, and building infrastructure with ceiling heights above 12 metres, floor footprints exceeding 50 metres, and a dedicated 10 MW power supply - typically runs USD 50 to 100 million per giga-casting cell (ANP Consulting, January 2024).

Part 2 of this series named "Giga-Casting: The aluminium shot"covers the aluminium alloy revolution inside the machine, the vacuum HPDC imperative, demand mathematics, scrap loop economics, and the survival pivot for foundries in Germany, China, North America, and India - will be published next week exclusively for AL Circle members.

Disclaimer: The opinions, information, claims, and references presented here are those of the author alone and AL Circle holds no responsibility. 

The following section presents practical case studies based on the implementation of the Thermolan® thermal analysis system, currently used in several foundries worldwide. The examples have been anonymised and the data adapted to preserve the confidentiality of the companies involved. In all cases, the implementation of thermal analysis was part of projects aimed at optimising process stability and the quality of the production metal.

The foundry casting supply chain is a critical component of manufacturing industries worldwide, serving as the backbone for producing high-quality metal components used in automotive, aerospace, construction, and other sectors. As global demand for precision-engineered products continues to rise, businesses must optimize their supply chain processes to remain competitive. This article delves into the intricacies of the foundry casting supply chain, offering actionable insights, proven strategies, and innovative solutions to help professionals streamline operations, reduce costs, and enhance product quality. Whether you're a supply chain manager, procurement specialist, or foundry operator, this comprehensive guide will equip you with the knowledge and tools needed to succeed in this complex yet rewarding domain.

Every year, we recognize World Day for Safety and Health at Work, taking time to reflect on what matters most: the safety, well-being and protection of employees around the world.

This year, the International Labour Organization, an agency of the United Nations dedicated to promoting labor rights and fair working conditions, is focusing specifically on healthy psychosocial working environments, the overall experience employees have on the job and the way it impacts their health and well-being.

This theme is relevant to what leaders across the manufacturing industry strive to create: a work environment where employees feel safe and supported, are enabled to do their best work and are more likely to commit to their employers long term.

The modernization and digitization of manufacturing is changing the way employees work on the plant floor. While digitization can significantly reduce workplace safety incidents and improve efficiency, a 2025 manufacturing-sector study from the National Library of Medicine database reported that rapid technological change without sufficient support can create “technostress,” contributing to burnout and reduced employee well‑being.

With the addition of these modernized processes, employee responsibilities may evolve to include data monitoring and more advanced systems and workflows.

Employers must support their teams through manufacturing’s digital evolution. Here are three key practices to prevent burnout and enable employees to feel engaged, supported and most importantly, safe at work:

A Strong Culture of Safety

Creating a safe workplace starts with embedding safety into company culture. This means moving beyond policies and procedures, making safety a core company value that is at the foundation of everyday decisions.

When employees see leadership consistently prioritizing safety over output, it signals that their wellbeing truly matters. In practice, this might look like a leader pausing a high-pressure initiative after employees raise concerns about capacity or risk. By choosing to listen, support and adjust, leaders reinforce that safety is non-negotiable, even when business demands are high.

In manufacturing environments especially, where the pace can be quick and risks are inherent, a commitment to a culture of safety is essential. Organizations that integrate safety into their values and consistently show commitment to improving the health and safety of their people, in both their metrics and their messaging, empower employees to speak up, report concerns without fear of repercussions and engage more fully at work. A strong safety culture helps leadership manage through change in a way that supports the overall well-being of their people.

Manager Engagement

Managers play a critical role in translating those company values into daily experiences. Engaged leaders who regularly connect with their teams will better understand workload pressures and will likely be able to identify early signs of stress or burnout and adjust accordingly. Some of these early signs can look like consistent fatigue, physical symptoms of stress, such as headaches or muscle aches, or reduced engagement in team discussions.

As new systems are introduced and roles evolve, employees will need not only the appropriate training, but support through change from their managers, who are on the frontlines of psychosocial safety.

By setting clear priorities, managing realistic workloads and creating space for conversation and feedback, managers can help reduce uncertainty and stress in fast-paced work environments. When they listen, respond to concerns and advocate for their teams, they reinforce a culture where employees feel valued, supported and confident that their well-being is protected. 

A Holistic Approach to Employee Wellness

Comprehensive wellness programs reinforce a company’s commitment to employee well-being by addressing the whole person. While traditional safety programs focus primarily on injury prevention, modern wellness initiatives recognize the importance of mental health and a healthy work routine.

These programs may include access to mental health resources, stress management tools, nutrition and fitness tips and other programs that encourage recovery and rest. At PPG, we have a Global Culture of Health initiative designed to help employees feel healthy, engaged, and supported at work. This initiative includes access to an Employee Assistance Program (EAP), with resources ranging from counseling, emotional well-being programs, and digital and financial well-being support. Our annual Global Safety Week is another opportunity to integrate overall employee wellness. During this high-engagement week, sites participate in activities, games and information sessions around physical and psychosocial health. When wellness initiatives are thoughtfully designed and aligned with operational realities, they can help drive engagement and long-term performance.

Together, the form the foundation of a work environment where employees can thrive, amid the rapid digital transformation of the manufacturing industry.

World Day for Safety and Health at Work is an opportunity for manufacturing leaders to pause and reflect on the physical and psychological safety of our workplaces and to reflect on where we can better support our teams in the year ahead.

About the Author
Lyndee Brassieur
Vice President, Environmental Health and Safety, PPG

Troy, Mich.—Traditionally, automobiles contain hundreds of structural metal parts that people never see. Whether it’s full front or rear underbodies, shock-tower modules or floor structures, they act as the “skeleton” of cars and trucks. Multiple components are riveted and welded together to form a safe, reliable framework and is covered with body panels.

However, automakers such as Ford, General Motors, Honda, Hyundai, Rivian, Tesla, Toyota and Volvo are rethinking that process. They are investing in new technology that enables them to produce large castings.

Tier One suppliers, such as Aisin and Ryobi, are also bullish on gigacasting. The goal is to consolidate parts, reduce complexity and eliminate weight.

A big idea

Gigacasting—also referred to as hypercasting, megacasting and unicasting—uses high-pressure aluminum die-casting to produce very large, single-piece structural components. It appeals to automotive engineers who are struggling to address the unique lightweighting challenges posed by electric vehicles.

Several companies make gigacasting equipment, including Bühler, IDRA and LK Machinery.

“Megacasting is an evolutionary step in die-casting,” says Michael Cinelli, head of product management and marketing at Bühler Group. “It uses the same fundamental physics, but applied at a dramatically larger scale, and with higher structural and quality requirements.

“It leverages ultra-large die-casting machines that generate between 6,000 and 9,000 tons of locking force,” explains Cinelli. “Megacasting relies on optimized alloys, advanced thermal management and integrated process control.”

Bühler unveiled its first ultra-large press in 2020 as automakers around the world began demanding more efficient production processes to meet the requirements of next-generation vehicles. Since then, the company has sold more than 50 Carat series machines to a variety of OEMs and suppliers.

Designed specifically for gigacasting applications, the huge presses feature die locking forces up to 92,000 kilonewtons. For instance, the Carat 920 machine can inject more than 200 kilograms of liquid aluminum into a die within milliseconds.

“This approach simplifies manufacturing, reduces vehicle weight and improves structural performance,” claims Cinelli. “With fewer joining processes and less material waste, megacasting also supports more sustainable production. It is suitable for both traditional and electric vehicle architectures.”

According to Cinelli, gigacasting’s rise reflects a convergence of trends in the auto industry, such as maturing technology, market pressure and a more capable supply ecosystem. “The barriers were significant for years, and only recently have they been cleared, largely within the past five,” he points out.

“In short, megacasting required simultaneous progress in presses, tooling, alloys, simulation, and a compelling economic and architectural driver,” says Cinelli. “Those pieces only aligned recently, triggered by EV-focused manufacturing strategies and proven early implementations, enabling rapid adoption after decades of technical interest.”

“Several factors have only recently converged to make gigacasting feasible at scale,” adds Leonard Ling, senior analyst and automotive knowledge manager at Ducker Carlisle Worldwide LLC. “The introduction of ultra-large presses, combined with advances in high-strength, heat-treat-free aluminum alloys, now allows for large, dimensionally stable castings.

“EV architectures offer more flexibility in underbody design and benefit significantly from reduced weight and simplified assembly,” notes Ling. “In contrast, traditional ICE platforms and legacy tooling investments made such large integrated castings uneconomical in the past.

“Gigacasting delivers meaningful structural and cost advantages,” claims Ling. “It can dramatically reduce part counts, welds and assembly operations, while improving dimensional accuracy. Fewer joints and more uniform load paths enhance stiffness and crash performance.

“For EV manufacturers, simplification means faster platform development, lower capital intensity and weight savings that translate directly into extended range,” says Ling. “The process also supports local manufacturing, as large castings are often produced adjacent to final assembly plants, cutting logistics costs and emissions.”

New production philosophy

In North America, Tesla has been the only high-volume adopter of large, high-pressure die-casting, using it on the Model 3, Model Y and Cybertruck.

“Ford and GM are moving in that direction and have sourced giga-press equipment, but remain in early deployment phases,” explains Ling. “European automakers are more cautious. Volvo is the clear front-runner, investing heavily in megacast rear floors for its next-generation EVs, while most German OEMs are still running pilots.

“Asian automakers, particularly in China, are advancing the fastest,” Ling points out. “BYD, Geely/Zeekr, Li, NIO and XPeng, among others, already use gigacast front or rear modules and battery housings in production, with some experimenting with casting nearly the entire underbody.”

Megacasting disrupts decades of a “we always do it this way” mindset in the auto industry.

“For legacy automakers, integrating gigacasting into existing plants remains a hurdle, requiring reconfiguration of body shops and balancing new investment with existing stamping capacity,” says Ling. “Beyond the press itself, gigacasting depends on a complete casting ecosystem. That includes large melting and holding furnaces, vacuum systems to control porosity and tight temperature management throughout the process.

“Heavy automation handles ladling, part extraction and trimming, along with localized heat treatment or quenching where needed,” explains Ling. “Quality assurance is equally critical. High-end X-ray or CT scanners, ultrasonic inspection, dimensional measurement cells and straightening systems are all required to monitor and correct defects or distortion in these massive structural parts.”

While it is technically feasible to convert traditional automotive body shops to gigacasting, it’s far from a plug-and-play process.

“A conventional body shop built around hundreds of stamped panels and weld points must be re-engineered to accommodate a handful of very large castings instead,” says Ling. “That means new fixtures, updated joining methods, such as bonding or hybrid welding, and reconfigured conveyors and handling systems for heavier parts.

“Complete revalidation of crash and corrosion performance is also necessary,” notes Ling. “In addition, repair networks need retraining.

“In practice, OEMs can adapt portions of an existing body shop, but full integration of gigacasting usually aligns better with a new EV platform or major retooling effort rather than a retrofit,” warns Ling.

Parts consolidation

One of the biggest advantages of gigacasting is its ability to consolidate parts and eliminate time-consuming assembly processes. That enables engineers to replace complex stampings with single, cast structures by combining geometry, functions and interfaces.

“Engineers can integrate multiple sheet metal stampings into one net-shape component,” says Bühler’s Cinelli. “Cast-in ribs, bosses and flanges replicate stiffness and joining features previously created by separate brackets and reinforcements. Overlapping panels, hem flanges and spot-weld seams can be eliminated by using continuous wall sections and local thickening.”

Functional features that previously needed add-on parts can be embedded, such as:

• Mounting points—cast threaded bosses or machined pads for suspension, seats, batteries, crash rails and power train mounts.
• Joining features—lap/plug-weld zones, adhesive channels and self-piercing rivet landings, reducing separate reinforcements.
• Cable and pipe management—cast clips, channels and through-holes for wiring harnesses, brake lines and coolant lines.
• NVH features—stiffening beads, rib lattices and tuned thickness transitions can be used instead of separate braces.

In addition, engineers can consolidate crash structures and load paths. Design ribs, crush initiators and energy-management features can be integrated directly into castings to replace multiple boxed sections and add-on crash brackets. Shock towers, subframe attachments and load transfer nodes can be combined into a single underbody and front or rear module.

Subassemblies can be reduced through interface integration. Floor pans, crossmembers, rocker reinforcements, and rear rails can be combined into one casting, minimizing fixture sets and welding sequences. With cast-in datum features for body alignment, fewer locator brackets and machining fixtures are needed.

According to Cinelli, engineers can leverage localized thickness and tailor topology. “Variable wall thicknesses, gussets and lattice ribs can be used to place material only where needed—replacing stacked stampings used for stiffness,” he points out.

“Conformal cooling and precise filling allow thin walls in low-load regions, avoiding extra patch panels,” adds Cinelli. “Fasteners and sealers can also be minimized, because continuous-cast walls remove many lap joints, reducing seam sealers and mastic pads.”

Gigacasting applications

Tesla Inc. pioneered automotive gigacasting several years ago. The automaker used the technology to produce front and rear underbodies on the Model Y sport utility vehicle, sharply cutting part counts and welds.

Tesla engineers adopted large megacastings to produce a three-piece chassis that consists of a structural battery pack sandwiched between front and rear castings. The massive components eliminated more than 350 stamped steel parts, including brackets. Megacasting also enabled Tesla to reduce the size of its body shop.

“The front casting includes the left and right shock towers, the wheel arch, the crush can for the front bumper, and the left and right door hinge pillars,” says Cory Steuben, director of cost engineering at Lucid Motors who previously participated in several tear downs of Tesla vehicles when he served as president of Munro & Associates. “The rear casting is even longer.

“Castings are like stones,” explains Steuben. “They provide amazing structural rigidity, because they don’t flex like many types of stamped steel subassemblies. They are attached to the rest of the vehicle with threaded fasteners and structural adhesives.”

Engineers at other automakers have also been intrigued by the potential of megacasting. They see it as a key enabler in the quest to produce a $25,000 EV for the mass-market.

Rivian Automotive Inc., for instance, has announced that its next-generation R2 platform will employ large structural castings for the underbody. In fact, by using the technology throughout the vehicle’s body structure, the automaker expects to eliminate 50 metal stampings and get rid of more than 300 joints.

Ford Motor Co. plans to use gigacasting as part of the Universal EV Production System that it’s in the process of installing at the retooled Louisville Assembly Plant. The technology will form the backbone of its Universal EV Platform, which will feature a structural battery pack sandwiched between a front and rear structure.

“Large single-piece aluminum unicastings [will] replace dozens of smaller parts, enabling the front and rear of the vehicle to be assembled separately,” says Jim Farley, president and CEO of Ford. Farley predicts the new process will reduce parts by 20 percent vs. a typical vehicle, with 25 percent fewer fasteners, 40 percent fewer workstations and 15 percent faster assembly time.

Honda Motor Co. engineers are also bullish on the potential of gigacasting. The automaker recently installed six Bühler Carat 610 presses at its engine plant in Anna, OH. The machines are producing two-part battery enclosures that will serve as the main frame structure for the floor of next-generation Honda and Acura EVs. The front and rear sections are joined together using friction stir welding.

In addition, Honda is conducting extensive research at its technical center in Tochigi, Japan. Engineers are experimenting with different casting conditions and parameters, such as temperature, pressure, speed and cooling rate.

Numerous challenges

Despite lots of hype and promise, gigacasting has several disadvantages over traditional automotive production processes. Some of the biggest hurdles, for instance, involve finding materials that can be formed and joined reliably.

Other challenges include keeping large thin-walled parts dimensionally stable, maintaining consistent casting quality and using tooling that holds up while still allowing quick changeovers.

“Casting has been around forever, but defects and stress concentrations are always a challenge,” warns Dilip Banerjee, Ph.D., a research engineer who specializes in mechanical performance at the Center for Automotive Lightweighting at the National Institute of Standards and Technology. “Die-cast parts must also be able to absorb the energy of impacts that can occur during vehicle crashes.”

Crashworthiness depends on smart designs. Specifically, how cast ribs, joining zones and alloys are engineered for ductility in as-cast form.

“Uniform cooling is critical, because during solidification the composition can change,” explains Banerjee. “Microstructures are prone to porosity caused by bubbles or voids, which can lead to ductility problems. High-quality, pore-free castings are essential to avoid thermal destruction.”

“Gigacasting brings new challenges in equipment cost, die durability, quality control and repairability,” adds Ducker Carlisle’s Ling. “Machines above 6,000 tons require significant infrastructure investment and extremely precise process control to avoid porosity, distortion or cracking.

“Tooling and dies are expensive, each costing several million dollars and requiring frequent maintenance,” says Ling. “That means that gigacasting is more economical for high-volume vehicle programs where costs can be amortized across large production runs.”

Ling believes that broader adoption in the auto industry will depend on continued progress in several areas, including:

• Capital investment. “Giga presses, auxiliary systems and facility modifications represent multimillion-dollar commitments, still a barrier for many automakers and Tier One suppliers,” says Ling..
• Material development. “Current alloys often carry licensing costs and patent limits,” explains Ling. “Many OEMs are developing proprietary alloys that balance strength and ductility without post-casting heat treatment.”
• Production flexibility. “Gigacasting equipment is specialized for a limited number of large parts, which can constrain flexibility across multiple vehicle platforms,” notes Ling.
• Process reliability. “Improving die-life management, dimensional control and nondestructive inspection remains key to consistent mass production,” Ling points out.
• Sustainability. “While gigacasting minimizes material waste, it is energy-intensive, warns Ling. “Closed-loop recycling systems for complex aluminum alloys will be essential to making the process truly sustainable.”
• Market dynamics. “If EV growth slows or shifts geographically, OEMs may hesitate to commit to capital-intensive infrastructure,” says Ling.

“For legacy automakers, integrating gigacasting into existing plants remains a hurdle, requiring reconfiguration of body shops and balancing new investment with existing stamping capacity,” concludes Ling.

MOTOR provides a comprehensive range of automotive repair data solutions to help your business save time and money. Discover more today.

The global metal casting market size is accounted at USD 199.86 billion in 2025 and predicted to increase from USD 222.18 billion in 2026 to approximately USD 423.06 billion by 2035, expanding at a CAGR of 7.79% from 2026 to 2035.

Metal Casting Market Key Takeaways

• The global metal casting market was valued at USD 177.54 billion in 2025.
• It is projected to reach USD 423.06billion by 2035.
• The metal casting market is expected to grow at a CAGR of 7.79% from 2026 to 2035.
• Asia Pacific led the market with the biggest market share of 56% in 2025.
• North America is expected to witness the fastest rate of growth in the Metal Casting market during the forecast period.
• By material, the aluminum segment held the largest segment of the Metal Casting market in 2025.
• By material, the steel segment is expected to grow at a significant rate during the forecast period.
• By application, the automotive segment is expected to hold the dominating share of the market during the forecast period.
• By application, the industrial segment is expected to grow at a notable rate.

What is Metal Casting?

Metal casting is a manufacturing technique where molten metal is poured into a prepared mold to create a specific shape upon solidification. This time-tested process, utilized for centuries, is adept at crafting a diverse array of metal components, from intricate parts to sizable industrial elements. The method entails crafting a mold, often composed of sand or other materials, and then filling it with molten metal. As the metal cools and solidifies, the mold is removed, unveiling the final product. Metal casting finds widespread application in industries like automotive, aerospace, and construction due to its cost-effectiveness and efficiency in producing intricate metal forms at scale.

What is the Role of AI in the Metal Casting Industry?

AI significantly impacts the metallurgical industry and is beneficial for die casting companies. AI has wide applications in metal manufacturing, which include predictive maintenance, process optimization, automated quality control, energy efficiency, and advanced automation. AI solutions allow industries to optimize the use of raw materials, minimize energy consumption, and reduce carbon dioxide emissions.

What are the Growth Factors in the Metal Casting Market?

• The growth of the metal casting market is closely linked to industrialization trends. As industries expand globally, there is a rising demand for metal castings across various sectors, including automotive, aerospace, construction, and machinery.
• Ongoing technological advancements in metal casting processes contribute to the market's growth. Innovations in casting techniques, materials, and automation enhance efficiency, reduce production costs, and improve the overall quality of metal castings.
• The automotive industry is a major driver of the metal casting market. As the automotive sector expands globally, there is an increasing need for complex and lightweight metal components, which are often produced through casting processes.
• The focus on sustainable practices and environmental regulations is driving the adoption of eco-friendly casting processes. Metal casting companies that embrace cleaner and more sustainable methods are likely to experience growth as environmental concerns become more prominent.
• With the growing trend towards product customization, the metal casting market benefits from the ability to produce complex and customized components. This demand is particularly prevalent in industries like AE.

Metal Casting Market Outlook

• Industry Growth Overview: Between 2025 to 2030, the metal casting industry will experience steady growth based on increased demand from the automotive, construction industry and heavy machinery industry as a result of lightweight alloys as well as precision cast components that are beginning to be used throughout the world, particularly by the ASEAN and North American regions as they move towards the use of high-performance value-added applications for their products.
• Global Expansion: Many of the leading companies are ramping up capacity in areas such as Southeast Asia, Eastern Europe, and Latin America to be in proximity to automotive OEMs and benefit from the lower cost structure of those markets. Several global organizations have recently announced that they will be constructing additional facilities focused on aluminum and iron casting to supply the growing regional demand for Industrial and Mobility Applications.
• Major Investors: Private equity and strategic investors are rapidly becoming involved in the metal casting industry because there is a continuous demand, the availability of long-term contracts, and the opportunity for the modernization of the process. These investment firms are currently providing capital to businesses that manufacture high-precision aluminum castings, utilize green foundry technology, and provide advanced metallurgical solutions.
• Startup Ecosystem: Innovation in the additive-enabled casting industry, AI-based defect detection, and low-energy melting systems is gaining traction. Companies in the U.S., Germany, and India are attracting investments because they develop digital foundry tools, produce automated quality control technology, and provide clean metal recovery technologies.

Market Scope

Market Dynamics

Driver

Infrastructure development boost

• The World Bank estimates that global infrastructure spending is expected to reach approximately USD 4.2 trillion per year by 2030, indicating a substantial demand for metal castings in construction projects.

Infrastructure development serves as a potent catalyst for the surge in market demand for the metal casting industry. As nations globally embark on ambitious infrastructure projects, the demand for diverse and specialized metal components escalates. Metal casting plays a pivotal role in providing essential parts for infrastructure projects such as bridges, pipelines, and power plants. The versatility of metal casting processes allows for the production of intricate and custom components that meet the stringent requirements of modern infrastructure.

The projected trillions of dollars in global infrastructure spending over the coming years, as estimated by the World Bank, underline the pivotal role of metal casting in shaping the future of construction and development. The reliability, durability, and scalability of metal casting make it an indispensable solution for the intricate and robust metal components essential to the success of large-scale infrastructure initiatives worldwide.

Restraint

Global supply chain disruptions

Global supply chain disruptions act as significant obstacles for the metal casting market, affecting both production and market demand. The metal casting industry heavily relies on a network of suppliers for crucial raw materials like metals and alloys. When disruptions occur in the global supply chain, be it due to geopolitical tensions, trade conflicts, or unforeseen events such as natural disasters, shortages, increased costs, and delays in production become prevalent. These uncertainties impede the ability of metal casting manufacturers to meet demand efficiently and in a timely manner. The interconnectedness of the global economy makes metal casting vulnerable to supply chain fluctuations.

When key raw material sources face interruptions, metal casting companies may experience challenges in maintaining consistent production levels and meeting contractual obligations. Consequently, these disruptions can create an atmosphere of uncertainty for consumers and manufacturers, impacting the overall demand for metal casting products in the market. Addressing these challenges requires strategic supply chain management, diversification of suppliers, and contingency planning to mitigate the impact of global disruptions on the metal casting industry.

Opportunity

Renewable energy targets

• According to a report published by India Brands Equity Foundation, the domestic automobile production increased by a compound annual growth rate (CAGR) of 2.36% from 2016 to 2020 with 26.36 million vehicles being manufactured in India in 2020.

The surge in original equipment manufacturers (OEMs) has created significant opportunities for the metal casting market. With the automotive sector witnessing substantial growth, metal castings play a crucial role in meeting the increased demand for precision-engineered components. OEMs rely on metal casting processes to produce a wide range of automotive parts, including under hood components, engine parts, and interiors. The versatility of metal casting allows for the creation of intricate and durable components that meet the stringent requirements of modern vehicles.

The expansion of OEMs into other sectors, such as aerospace and industrial machinery, further broadens the scope for metal casting applications. As original equipment manufacturers seek reliable and cost-effective solutions for producing complex components, the metal casting market stands poised to capitalize on these opportunities by providing essential manufacturing capabilities that contribute to the overall growth and innovation in various industries.

Sement Insights

Material Insights

The aluminum segment dominated the metal casting market in 2025; the segment is observed to continue the trend throughout the forecast period. Within the metal casting market, the aluminum segment pertains to utilizing aluminum alloys as the key material for casting processes. Aluminum's appeal lies in its lightweight properties, strong resistance to corrosion, and efficient thermal conductivity.

• As per the World Foundry Organization, the production volume of iron casting increased by 0.8% in 2017 compared to the previous year. It was 156.58 kilotons in 2017.

A noteworthy trend in metal casting involves the rising adoption of aluminum castings, particularly in the automotive and aerospace sectors. This preference is driven by the desire to reduce vehicle weight, improve fuel efficiency, and align with sustainable practices. The aluminum segment, thus, stands out as a favored choice in metal casting, meeting the evolving demands for lightweight, durable, and environmentally friendly components.

The steel segment is expected to grow at a significant rate throughout the forecast period. In the metal casting market, the steel segment refers to the production of metal components using various steel alloys. Steel, known for its strength and versatility, is a preferred material for manufacturing durable and high-performance castings. A prominent trend in the steel segment of the metal casting market is the increasing demand for specialized steel alloys, driven by the automotive and aerospace industries. These alloys offer enhanced properties, such as high strength-to-weight ratios, meeting the evolving needs of modern manufacturing and contributing to the overall growth of the metal casting market.

Application Insights

The automotive segment is observed to hold the dominating share of the metal casting market during the forecast period. In the metal casting market, the automotive segment pertains to the production of cast metal components used in vehicles. This includes under hood parts, engine components, interiors, and other critical automotive elements. A notable trend in the automotive segment of the metal casting market is the increasing demand for lightweight materials . As automotive manufacturers strive for fuel efficiency, metal casting processes are crucial in delivering high-strength yet lightweight components, contributing to the overall performance and sustainability goals of the automotive industry.

The industrial segment is expected to generate a notable revenue share in the market. In the metal casting market, the industrial segment encompasses the diverse applications of cast metal components across various industrial sectors. This includes the manufacturing of heavy machinery, equipment parts, and components for infrastructure projects. A notable trend in the industrial segment is the growing demand for precision-crafted metal castings to enhance the efficiency and reliability of industrial machinery. As industries worldwide invest in infrastructure development and machinery upgrades, the industrial application of metal casting continues to experience steady growth, driven by the need for durable and specialized components.

Regional Insights

Asia PacificMetal Casting Market Size and Growth 2025 to 2034

The Asia Pacific metal casting market size is exhibited at USD 111.92 billion in 2025 and is projected to be worth around USD 239.59 billion by 2035, growing at a CAGR of 7.91% from 2026 to 2035.

How did Asia Pacific hold the Largest Revenue Share of the Metal Casting Market?

Asia Pacific had the largest market share of 56% in 2025 and will maintain its dominant position from 2026 to 2035. The metal casting market is due to robust industrialization, substantial automotive production, and rapid infrastructure development. The region's manufacturing prowess, particularly in countries like China and India, has fueled a high demand for metal castings across various sectors. Moreover, the growing emphasis on lightweight materials in automotive manufacturing further amplifies the significance of metal casting processes. The expanding industrial base, coupled with increasing investments in infrastructure, positions Asia-Pacific as a key player in the global metal casting market.

Europe is poised for rapid growth in the metal casting market, fueled by advancements in technology and increasing demand for lightweight materials.

• Europe has a presence of 4,500 metal casting firms, a major share of which are small businesses with less than 50 employees.

How did Europe reach rapid growth in the Metal Casting Market?

The European automotive sector, a significant consumer of metal castings, emphasizes fuel efficiency and sustainability, driving the adoption of innovative casting processes. The European Foundry Industry alone contributes over EUR 40 billion annually. Additionally, initiatives like the European Green Deal promote sustainable practices, creating opportunities for eco-friendly casting methods. With a strong industrial base and a focus on environmental responsibility, Europe is well-positioned for significant expansion in the metal casting market.

How is the Significant Expansion of the Metal Casting Market in North America?

North America is expected to grow at a significant rate in the market, owing to a shift in the automotive sector towards the production of electric and hybrid vehicles, and the adoption of Industry 4.0 technologies. The industry is also embracing sustainability, with increased use of recycled metal and energy-efficient production methods to meet environmental regulations. The American Foundry Society is dedicated to advancing the business climate for the $51 billion metal casting economy.

U.S. Metal Casting Market Trends

The U.S. market is showing steady growth as demand from key end-use sectors such as automotive, aerospace, and industrial machinery continues to expand, with lightweight aluminum and other non-ferrous castings increasingly used to meet efficiency and performance goals. Automation and advanced technologies, including robotics, digital monitoring, and additive manufacturing for mold making, are being adopted to improve precision, reduce defects, and shorten production cycles.

Why did Latin America grow at a considerable rate in the Metal Casting Market?

Expected growth for Latin America was solid due to the increase in manufacturing and demand for cast parts that are utilized in the construction and automotive industries. Many countries are making huge investments in new foundry technology and production methods. Some of the products that will be used from this growth will include mining equipment, farm machinery, and commercial vehicles.
Economic recovery and growth in the industrial sector led to growth in these segments, as did the government support the development of local production to decrease reliance on imported products.

Brazil Metal Casting Market Trends

Brazil was the largest market for casting products due to its strong industrial development and high levels of demand for casting products for various industries, including automotive, agricultural, and heavy machinery manufacturing. Foundries in Brazil have upgraded their production lines and implemented environmentally friendly technologies. Brazil has a large domestic market and many opportunities to export products throughout South America.

Why did the Middle East & Africa region grow at a considerable rate in the Metal Casting Market?

The Middle East & Africa region have been projected to grow significantly due to the growth of the construction, Infrastructure, and industrial sectors. As a result, demand has risen for steel and iron castings in pipelines, machinery, and building materials. Countries are now investing in the creation of new factories and in enhancing their casting technologies. There are substantial business opportunities in the fields of oil & gas equipment, mining machinery, and the development of public infrastructure.

The UAE Metal Casting Market Trends

The United Arab Emirates (UAE) has been leading the way in this region, as there has been a substantial investment in the construction, infrastructure, and industrial growth. Additionally, the UAE has made significant investments into modernizing manufacturing facilities and supporting the development of new foundry projects. Therefore, the demand for cast parts for use in building materials, machinery, and energy equipment has continued to grow.

The increased production capacity of the manufacturing sector has been aided by strong government policies, as well as an influx of foreign investments.

Value Chain Analysis of the Metal Casting Market

• Feedstock Procurement
  This stage is transformed by scrap-first sourcing, energy savings, predictive analytics, supply chain traceability, and new alloys.
  Key Players: Nucor Corporation, Tata Steel, Hindalco, Sims Limited, ArcelorMittal, Aurubis AG.
• Waste Management and Recycling
  This stage encompasses direct re-melting, AI-powered sorting, slag valorization, mechanical and thermal reclamation, and eco-friendly binders.
  Key Players: Umicore, Sims Limited, Nucor Corporation, Dowa Holdings, CMR Green Technologies, and Baheti Recycling Industries.
• Regulatory Compliance and Safety Monitoring
  This stage is revolutionized by stricter air quality standards, hazard communication, heat stress prevention, IoT and real-time data, and automated inspections.
  Key Players: Intertek Group PLC, TÜV SÜD AG, AECOM, VelocityEHS, ERM, GF Casting Solutions, Nemak.

Metal Casting Market Companies

• Alcoa Corporation
• ThyssenKrupp AG
• Bharat Forge Limited
• Norsk Hydro ASA
• Arconic Inc.
• Nemak
• Kobe Steel, Ltd.
• Georg Fischer AG
• Waupaca Foundry, Inc.
• Precision Castparts Corp. (PCC)
• Endurance Technologies Limited
• American Axle & Manufacturing Holdings, Inc.
• Zynq Foundry
• Aisin Seiki Co., Ltd.
• Bühler AG

Segments Covered in the Report

By Material

• Iron
• Steel
• Aluminum
• Others

By Application

• Automotive & Transportation
• Industrial
• Building & Construction
• Others

By Geography

• North America
• Europe
• Asia-Pacific
• Latin America
• Middle East and Africa

Workshop preserved for centuries

The discovered structure features a large pile of about 100 tons of slag, as well as a semicircular arrangement formed by approximately 30 tuyères used, the clay tubes responsible for carrying air to the furnace.

In the same set, archaeologists found 35 circular bases of furnaces, each about 30 cm deep.

The state of preservation of the site allowed for a clear observation of the spatial organization and the residues related to production.

The workshop was dated between the 4th century BC and the 4th century AD, indicating an extremely long period of use.

The interval represents almost eight centuries of continuous activity related to iron metallurgy at the Senegalese site.

What the find reveals

For Mélissa Morel from UNIGE and her colleagues, the site sheds new light on the emergence of iron metallurgy in West Africa.

The set was described as truly unique due to its age, preservation, and technical characteristics.

According to the researchers, iron and steel production likely occurred on a small scale to meet local needs.

Among the main uses were the manufacture of agricultural tools, indicating an activity focused on the daily lives of the communities.

The long duration of the system in operation also offers a rare opportunity to study the continuity and adaptation of a smelting technique over time, without a marked rupture in the main structure of the complex.

Identified technical tradition

At the Didé West 1 site, the spatial organization, the morphology of the furnaces, and the associated residues point to the tradition known as FAL02.

This tradition is marked by small circular furnaces with a removable chimney at the top.

Another feature described by archaeologists is the use of large clay nozzles. The vents do not have a single air outlet, but multiple small openings connected to the main channel by perpendicular side ducts.

This design allowed for air distribution to the bottom of the furnace. Researchers also recorded the use of palm seeds as filling material at the base, a practice not previously documented in this type of context.

Continuity in production

Anne Mayor from UNIGE and the Institute of Global Studies stated that the tradition of iron metallurgy remained remarkably stable during the long operation of the workshop, with only minor technical adjustments over the centuries at the site.

This continuity, according to the archaeologists, contrasts with other African metallurgical contexts and reinforces the importance of understanding the technical and cultural choices made by early metallurgists in iron production.

With information from SCI News.