Air compressor crankshaft
Baoding Guokun Machinery Co., Ltd and Baoding Guokun Export and Import Trading Co., Ltd are China pressional factory of forged or casted crankshaft for air compressor.
Process of our crankshafts
Forging crankshaft: Crankshafts can be forged from a steel bar usually through roll forging, mold forging, hot forging and precision machining process.
Casting Crankshaft: Can be casted by using sand casting, shell mold casting, investment casting and precision machining.
The main material we offer is ductile iron. 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.