Air Compressor Crankshaft


Baoding Guokun Machinery Co., Ltd and Baoding Guokun Export and Import Trading Co., Ltd is the professional casting foundry and trading company of various customized crankshaft as per your drawings and requirements.

Our engine crankshafts are mainly for various air compressor, air brake system, refrigeration compressor crankshafts, reciprocating gas compressor crankshafts, motor crankshafts, cars crankshafts, trucks camshafts, crankshaft replacement parts and other engine accessories.

Process of our crankshaft

  • Forging Crankshaft: Crankshafts can be forged from a steel bar usually through roll forging, mold forging, hot forging and precision machining process.
  • Casting Crankshaft: Crankshafts can be casted by using sand casting, shell mold casting, investment casting and precision machining.

Ductile Iron Casting crankshaft material:

  • Chemical composition: C%:3.7-4.0; Si%:2.5; Mn:0.5 max, S:0.17 max; P:0.02 max; Ni:0.03-0.05
  • Mechanical properties: Yield Strength: 480 Min; Tensile Strength: 800 Min; E: 2% min
  • Hardness: 245-335 HB

Surface treatment: Passivate or as per your requirements.

Please email your drawings to or call us 86-18132789710(Wechat or Whatsapp)