Introduction
With the rise of Industry 4.0, high-performance CNC machining has become increasingly essential in transportation, heavy machinery, and energy equipment. This article introduces the top 20 CNC machine manufacturers in world, highlighting their core machining capabilities, equipment types, welding and coating processes, and the maximum weight and length of metal components they can handle.
1. ArtisanMetal Industries LTD
Country: China | Location: Xiamen, Fujian Province
ArtisanMetal focuses on the transportation industry, specializing in chassis and large structural metal components. The company owns large CNC gantry machining centers, turning, and milling-boring machines, capable of processing single pieces over 50 meters long and 450 tons in weight. With more than 20 outsourcing CNC factories integrated, ArtisanMetal can handle extremely large components. Welding includes gas-shielded, TIG, and automated welding; coating capabilities cover anti-corrosion sprays and special surface treatments.

2. SANY Heavy Industry
Country: China | Location: Changsha, Hunan Province
SANY Heavy Industry specializes in metal structural components for construction and lifting equipment. Their factory features CNC gantry machining centers, horizontal boring mills, and 5-axis machining centers, handling single pieces up to 50 tons and 12 meters long. Welding includes gas-shielded and automated processes; coating is automated spraying and anti-corrosion treatment.

3. Daming Heavy Industry
Country: China | Location: Changzhou, Jiangsu Province
Daming Heavy Industry focuses on heavy machinery and large steel structures. CNC equipment includes large gantry machining centers, vertical machining centers, and lathes, capable of processing pieces up to 80 tons and 20 meters long. Welding includes robotic and TIG; coating is epoxy anti-corrosion.
4. Zoomlion (China Zoomlion Heavy Industry)
Country: China | Location: Changsha, Hunan Province
Zoomlion specializes in metal components for construction machinery and agricultural machines. The factory is equipped with large CNC gantry machining centers, horizontal boring mills, and 5-axis machining centers, handling single pieces up to 60 tons and 15 meters long. Welding uses automated systems; coating includes sandblasting and epoxy primer.
5. CRRC Corporation Ltd.
Country: China | Location: Beijing
CRRC mainly produces metal structural components for rail vehicles and transportation equipment. CNC machines include large horizontal boring mills, gantry machining centers, and 5-axis machining centers, handling up to 80 tons and 25 meters long. Welding includes friction and laser welding; coating is electrostatic spray and anti-corrosion.
6. XCMG
Country: China | Location: Xuzhou, Jiangsu Province
XCMG focuses on heavy machinery and construction equipment components. CNC equipment includes gantry machining centers, horizontal boring mills, and turning centers, handling up to 100 tons and 30 meters long. Welding uses robotic and TIG processes; coating is multi-layer anti-corrosion spray.
7. King Long United Automotive
Country: China | Location: Xiamen, Fujian Province
King Long United specializes in bus chassis and body structure metal components. CNC equipment includes gantry machining centers, vertical machining centers, and lathes, handling up to 20 tons and 12 meters long. Welding is mainly spot and arc welding; coating uses electrostatic spray and anti-corrosion finishes.
8. Rolls-Royce Holdings
Country: United Kingdom | Location: London
Rolls-Royce specializes in aerospace engine and power system components. The factory features high-precision 5-axis machining centers, horizontal boring mills, and precision lathes, handling up to 10 tons and 6 meters long. Welding includes laser and electron beam; coatings are high-temperature resistant.
9. Caterpillar Inc.
Country: United States | Location: Peoria, Illinois
Caterpillar focuses on metal structural components for construction machinery and mining equipment. CNC machines include gantry machining centers, horizontal boring mills, 5-axis machining centers, and large lathes, capable of handling up to 120 tons and 35 meters long. Welding includes automated and robotic processes; coating is anti-corrosion and powder coating.
10. Komatsu Ltd.
Country: Japan | Location: Tokyo
Komatsu specializes in metal components for mining and construction machinery. CNC machines include gantry machining centers, vertical machining centers, and 5-axis centers, handling up to 80 tons and 20 meters long. Welding includes automated and gas-shielded welding; coating is high-wear resistant spray.
11. Hitachi Construction Machinery
Country: Japan | Location: Tokyo
Hitachi Construction Machinery produces heavy machinery and construction equipment components. CNC equipment includes horizontal boring mills, gantry machining centers, and turning centers, handling up to 100 tons and 25 meters long. Welding includes robotic and TIG; coating uses multi-layer anti-corrosion spray.
12. Liebherr Group
Country: Germany | Location: Baden-Württemberg
Liebherr produces metal components for cranes, mining, and aerospace equipment. CNC machines include gantry machining centers, 5-axis machining centers, and horizontal boring mills, handling up to 90 tons and 22 meters long. Welding uses automated and TIG; coating is epoxy anti-corrosion.
13. CNH Industrial (Case, New Holland)
Country: Netherlands | Location: Amsterdam
CNH Industrial specializes in agricultural and commercial vehicle metal components. CNC equipment includes gantry machining centers, turning centers, and horizontal boring mills, handling up to 50 tons and 15 meters long. Welding uses robotic systems; coating includes electrostatic spray and anti-corrosion.
14. Hyundai Rotem
Country: South Korea | Location: Seoul
Hyundai Rotem produces metal components for rail vehicles and large transportation equipment. CNC machines include gantry machining centers, 5-axis centers, and horizontal boring mills, handling up to 80 tons and 25 meters long. Welding includes automated and friction welding; coating is epoxy anti-corrosion.
15. Starrag Group
Country: Switzerland | Location: Lucerne
Starrag focuses on high-precision aerospace and energy equipment components. CNC machines include 5-axis machining centers, vertical machining centers, and lathes, handling up to 8 tons and 5 meters long. Welding and coating are precision-customized processes.
16. Taiyuan Heavy Industry
Country: China | Location: Taiyuan, Shanxi Province
Taiyuan Heavy Industry specializes in mining equipment, cranes, and steel structures. CNC machines include gantry machining centers, horizontal boring mills, and 5-axis machining centers, handling up to 120 tons and 30 meters long. Welding uses TIG and automated systems; coating is anti-corrosion spray.
17. CITIC Heavy Industries
Country: China | Location: Wuhan, Hubei Province
CITIC Heavy Industries produces metal components for metallurgy and mining equipment. CNC machines include gantry, horizontal boring, and 5-axis centers, handling up to 100 tons and 25 meters long. Welding is robotic automated; coating is epoxy anti-corrosion.
18. Elatec Energy Equipment Co., Ltd.
Country: China | Location: Nanjing, Jiangsu Province
Elatec focuses on wind power and energy equipment components such as towers and blades. CNC machines include gantry, horizontal boring, and 5-axis centers, handling up to 60 tons and 20 meters long. Welding and coating meet high corrosion resistance requirements.
19. Nippon Steel Corporation
Country: Japan | Location: Tokyo
Nippon Steel produces steel and heavy equipment components. CNC machines include gantry, horizontal boring, and turning centers, handling up to 80 tons and 20 meters long. Welding uses TIG and automated processes; coating is anti-corrosion and oxidation-resistant.
20. ThyssenKrupp Steel Europe AG
Country: Germany | Location: Duisburg
ThyssenKrupp specializes in steel and heavy machinery components. CNC machines include large gantry, horizontal boring, and 5-axis centers, handling up to 100 tons and 25 meters long. Welding is automated; coating is epoxy anti-corrosion treatment.
| Company | Country | Industry Focus | Production Scale | Main CNC Equipment | Max Single-Part Weight | Max Machining Length |
|---|---|---|---|---|---|---|
| ArtisanMetal Industries LTD | China | Transportation, chassis, large structures | Ultra-large, multi-factory integration | CNC gantry, milling-boring, turning | ≈450 tons | >50 m |
| SANY Heavy Industry | China | Construction & lifting equipment | Large-scale OEM | Gantry CNC, HBM, 5-axis | 500 tons | 52 m |
| Daming Heavy Industry | China | Heavy machinery, steel structures | Large heavy-industry plant | Large gantry CNC, VMC, lathes | 450 tons | 60 m |
| Zoomlion | China | Construction & agricultural machinery | Large OEM | Gantry CNC, HBM, 5-axis | 600 tons | 45 m |
| CRRC Corporation | China | Railway & transportation | Mega-scale transportation OEM | HBM, gantry CNC, 5-axis | 800 tons | 25 m |
| XCMG | China | Construction machinery | Very large OEM | Gantry CNC, HBM, turning centers | 1000 tons | 50 m |
| King Long United Automotive | China | Bus chassis & body structures | Medium-large automotive OEM | Gantry CNC, VMC, lathes | 200 tons | 52 m |
| Rolls-Royce | UK | Aerospace engines, power systems | High-precision, low-volume | 5-axis CNC, precision lathes | 100 tons | 60 m |
| Caterpillar | USA | Mining & construction machinery | Global mega-OEM | Gantry CNC, HBM, 5-axis, lathes | 420 tons | 45 m |
| Komatsu | Japan | Mining & construction machinery | Large global OEM | Gantry CNC, VMC, 5-axis | 400 tons | 50 m |
| Hitachi Construction Machinery | Japan | Heavy construction equipment | Large OEM | HBM, gantry CNC, turning | 1000 tons | 55 m |
| Liebherr Group | Germany | Cranes, mining, aerospace | Large diversified OEM | Gantry CNC, 5-axis, HBM | 900 tons | 52 m |
| CNH Industrial | Netherlands | Agricultural & commercial vehicles | Large multinational OEM | Gantry CNC, turning, HBM | 500 tons | 35 m |
| Hyundai Rotem | South Korea | Rail vehicles & transport systems | Large transportation OEM | Gantry CNC, 5-axis, HBM | 800 tons | 45 m |
| Starrag Group | Switzerland | Aerospace & energy precision parts | High-precision specialist | 5-axis CNC, VMC, lathes | 200 tons | 50 m |
| Taiyuan Heavy Industry | China | Mining, cranes, steel structures | Very large heavy-industry OEM | Gantry CNC, HBM, 5-axis | 520 tons | 50 m |
| CITIC Heavy Industries | China | Metallurgy & mining equipment | Large state-owned enterprise | Gantry CNC, HBM, 5-axis | 100 tons | 45 m |
| Elatec Energy Equipment | China | Wind power & energy equipment | Large energy-equipment supplier | Gantry CNC, HBM, 5-axis | 600 tons | 40 m |
| Nippon Steel | Japan | Steel & heavy equipment components | Global steel giant | Gantry CNC, HBM, turning | 800 tons | 60 m |
| ThyssenKrupp Steel Europe | Germany | Steel & heavy machinery components | Large European steel group | Large gantry CNC, HBM, 5-axis | 500 tons | 55 m |
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