1.11Hydraulic unit, carbon steel bending welding and sealing.
A.Air filters external oil pumps of Shanghai Dazhong brand, with a better cooling effect and easy maintenance
B.Hydraulic valves of Shanghai Huadao brand.
C.High pressure oil pipe (36Mpa, 1.5m) and low pressure oil pipe (22.4Mpa, 2m), China standard soft connection.
1.12 Hydraulic cylinder, welded using material 27SiMn seamless steel pipe, Inner diameter and stroke is Φ120X400, pressing pressure is 18-20MPa.
1.13 Piston rod, Medium-frequency hardening with 45# steel, the surface hardness can be HRC48-50, and there is a protect cover outside.