Metal spinning is an advanced manufacturing process that integrates techniques such as forging, extrusion, drawing, bending, ring rolling, cross rolling, and rolling extrusion. This near-net-shape process involves securing a metal blank, plate, or preform onto a mandrel mounted on a spinning machine. The mandrel and workpiece are rotated by the main spindle while a cnc metal spinning wheel applies pressure to the blank, progressively deforming the material plastically as it conforms to the rotating mandrel. The result is a hollow, rotational part with various contour shapes.

Industries and Components Suited for Metal Spinning

Metal spinning is versatile and finds applications across numerous industries including automotive, military, diving, natural gas, lighting, machinery manufacturing, household appliances, chemical processing, wind energy, aerospace, oil and gas, rail transport, road construction, advertising, metalworking, musical instruments, cookware, and hotel supplies. The process is ideal for producing metal spinning components such as:

• Automotive/motorcycle/truck/bus wheels, wheel spokes, and rim locks
• Railway wheels
• Natural gas cylinders, CNG tanks, and industrial gas bottles
• Batteries, transport, and storage tools
• Fire extinguishers
• Reflector cups, fan components, cooking pots, separator components, tank bottoms, and end caps
• Fuel containers, drive shafts, cylindrical pipes, precision tubes, hydraulic cylinders, clutch brackets, converter housings, hollow shafts, brake pistons, multi-V pulleys, flywheel starter gears, and sealed groove drive components
• Traffic signal poles, flagpoles, precision aluminum rods, crossing arms, and grooved hollow shafts

High-end forged wheels for vehicles are lightweight and robust but costly. In contrast, low-end cast wheels are more affordable. Recently, a combination of casting and spinning techniques has produced wheels with quality between the two, gaining widespread adoption. Companies like Qinhuangdao Zhongqi Dicastal's aluminum wheels and Dewei Group's magnesium wheels from Changge, Henan, are in high demand.

Notable Companies in the Metal Spinning Industry

1. Leifeld Metal Spinning (Germany): Known for its comprehensive product line.
2. BE-CU Spinning Co., Ltd. (China): A specialized manufacturer with a complete range of conplex and large metal spinning equipment.
3. DENN (Spain): A company of similar stature to Leifeld with a full range of products.
4. Abacus Maschinenbau GmbH (Germany)
5. WF Maschinenbau und Blechformtechnik GmbH & Co. KG (Germany)
6. Girardi (Italy): Offers a wide range of spinning equipment.
7. Giotto (Italy)
8. MJC Engineering and Technology (USA)
9. Nihon Spindle Manufacturing Co., Ltd. (Japan): Produces tube, wheel, and shear spinning machines.
10. OPTON Co., Ltd. (Japan): A smaller-scale producer focusing on tube spinning machines.