Chuangbo Extrusion is a leader manufacturer in China in high torque, , rolled shaft technology producing extruder screw shafts that can withstand significant increases in load, torque, and temperature. Working with leading materials suppliers, we have developed materials with the highest torque capacity and hardness properties to manufacture superior extruder shafts.
Shaft is spline design which is good for torque distribution.
Using 40CrNiMoA material, the compactness is increased by forging and processing, and the material torque is improved by heat treatment process.
Chemical Composition of materials
0.37 ~ 0.44
0.50 ~ 0.80
0.60 ~ 0.90
1.25 ~ 1.65
0.15 ~ 0.25
Mechanical Properties of Materials
Density (kg/m3): about 7830
Elastic modulus (GPa): 209
Tensile strength: b (MPa): ≥ 980 (100)
Yield strength: s (MPa): ≥ 835 (85)
The elongation is 5%: ≥ 12
The reduction rate of the cross section (%): ≥ 55
Impact energy Akv (J): ≥ 78
Impact toughness value of alpha kv (J/cm): ≥ 98 (10)