Refrigeration Compressor Crankshafts
The company supplies refrigeration compressor crankshafts, eccentric shafts, camshafts and other components and has developed a large number of crankshafts in terms of size and specification for leading OEMs refrigeration compressors in China, USA, Europe and other countries.
The crankshaft is one of the most important components of a refrigeration compressor. All equipment that converts rotary motion into linear motion can use crankshafts, and our refrigeration compressors are the main transmission structure in refrigeration technology.
Features
1. We have professional CNC crankshaft grinder and CNC cylindrical grinder with eccentricity accuracy 0.004mm and cylindrical accuracy 0.002mm.
2. Our crankshafts are famous for their stiffness, strength and impact resistance.
3. The crankshaft is made of alloy with roughness of Ra0.01um after polishing, which has excellent wear resistance and lubricity.
4、SPP INDUSRTY owns and has many professional testing equipments such as CMM, contour plotter, roughness meter, etc., to strictly test the parallelism of crankshaft, torsion resistance of crankshaft and coaxiality of crankshaft. Two crankshaft pitches. This ensures that all crankshafts rotate smoothly without noise, vibration or wobble, thus ensuring a long service life of the compressor.
Materials
As one of the most critical components of refrigeration compressors, the appearance of the crankshaft directly affects the service life of the compressor. It is critical to select a crankshaft material that can withstand heavy loads and varying torques. Therefore, the user must select the material according to the actual application needs of the refrigeration compressor. The traditional choices are as follows:
1: Ductile cast iron
A. Ductile iron has yield and tensile strengths up to 600-900 MPa.
b. It is easy to produce crankshafts using ductile iron, especially because ductile iron is usually very cheap.
C. Ductile iron has excellent vibration damping, wear resistance, and no cracking.
2: Carbon Steel
A. High quality carbon steel is known for its strength and ability to meet normal demands. It costs less than alloy steel and has better ductility than ductile iron.
b. High quality carbon steel also has excellent plasticity, physical properties, chemical properties, and mechanical properties.
3: Alloy Steel
a. Alloy steel has better tensile strength, yield strength and ductility than ductile iron and high quality carbon.
b. Alloy steels also have outstanding strength and impact resistance. better physical, chemical and mechanical properties than high quality carbon steels.
Applications
The crankshaft is one of the most important components of a refrigeration compressor. All equipment that converts rotary motion into linear motion can use crankshafts, and our refrigeration compressors are the main transmission structure in refrigeration technology.
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SPP Industry Ltd.
In the 1990s, SPP Industry Ltd was one of the first manufacturers to establish CNC machining in China. The company has now established five major machine parks in China, with significant achievements in the areas of 5-axis machining, precision grinding & honing, gear machining, large parts machining, custom tungsten carbide and new material development respectively.
