Range of hydraulic cylinders
Our professional design includes the production of hydraulic cylinders up to:
>max pressure: 750Mpa
>max length: 6000mm
>max stoke: 5000mm
>max tube: 1500mm
We provide seals kits NOK and Parker and the range of our products consists of:
>construction hydraulic cylinder
>excavator hydraulic cylinder
>dozer hydraulic cylinder
>loader hydraulic cylinder
>telescopic cylinder
>industry cylinder
>boat cylinder
>mining cylinder
>small cylinder
>piston cylinder 
double cylinder
Our cylinders are suitable for all brands of construction machinery, for example:
Komatsu, Hitachi, Caterpillar, Sumitomo, Kobelco, Doosan, Volvo, Hyundai, Xiagong,
Longgong, Shantui, and many others.
Specification

1. Material

• tube 25Mnb
• cylinder rod 45#
• max length 12m
• max cylinder tube diameter 1.5m

1. 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 -20^oC/+90^oC
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