This kind of durable intermediate-pressure cylinder is designed for excavator with Max. pressure of 27.5Mpa and operating temperature -20℃-100℃（for cold area:-40℃-90℃.
1.Small size, light weight, high intensity and high reliability : processing and welding technology are inspected through - ultrasonic flaw detection;
2.Japanese imported sealing rings can overcome civil engineering construction conditions and prevent grit and dust, reduce oil leakage and obtain optimal piston rod oil film.;
3.Cylinder body has excellent roughness and rigidity and better wearing capacity after roll finishing;
4.Piston rod with high frequency quenching followed by nickel chrome plating to improve rust proofing and wear-resisting performance;
5.Buffer device can absorb the impact at the end of stroke.

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