VOLVO EC55 Excavator Spare Parts Boom Arm Bucket Hydraulic Cylinder

详细说明

Hydraulic cylinders that are used on construction equipment must be rugged and reliable. They will experience a lifetime exposed to heavy use in a harsh environment. Failure in service will result in costly downtime, project delays and maintenance headaches.
We provide seals kits NOK and Parker and the range of our products consists of:
1.construction hydraulic cylinder
2.excavator hydraulic cylinder
3.dozer hydraulic cylinder
4.loader hydraulic cylinder
5.telescopic cylinder
6.industry cylinder
7.boat cylinder
8.mining cylinder
9.small cylinder
10.piston cylinder
11.double cylinder and so on.
Our cylinders are suitable for all brands of construction machinery, for example:
Komatsu, Hitachi, Sumitomo, Kobelco, Doosan, Volvo, Hyundai, Xiagong,
Longgong, Shantui, and many others.

SpecificationYY
.Material
*tube 25Mnb
*cylinder rod 45#
*max length 12m
*max cylinder tube diameter 1.5m

Test pressure
*32.4Mpa (330kgf/mm2)
1.Overload unloading pressure (setting pressure of unloading valve) 35.3Mpa (360kgf/mm2)
2.Max test pressure 44.1Mpa (450kgf/mm2)
3.Instantaneous boost pressure 34.3Mpa (350kgf/mm2)
4.Cylinder output flow 420L/min.
5.Cylinder rod surface

*high-frequency heat treatment HRC52-60
*thickness of hardening layer 2.0-3.0mm
*chromium plating 0.025mm HV850
1.Carburizing or high-frequency heat treatment of the inner surface of the bearing bush HRC52-60, thickness 1.5-2. After assembly and testing, the oil port is blocked
2.Operating temperature range of lubricating oil -20oC/+90oC
3.During the initial operation,all air should be fully discharged and the pressure should be lower than the set pressure of the safety valve
4.Painting requirements: primer and finish color are original colors
5.Wooden case packing