9246544 4628630 For Hitachi ZX270 ZX270-3 ZX280-3 Excavator Arm Hydraulic Cylinder Assembly  

Prouduct Description

For the tube:

1.we use 25Mn steel, which is the same as original manufacturer of hydraulic cylinders. 
2.The surface is sandblasted ,first, using the paint baking process, spraying primer and drying, and then spraying top paint, 2 layers of paint

For the rod:

1.Piston rod overall conditioning
2.High frequency surface hardening , hardness up to 55.
3.The surface is treated with hard chromium plating.

For the seal:

We use Japan NOK and US SKF imported seals, and the oil leakage rate of the cylinder is controlled below 1%.

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Company Information

GuangZhou GuoLi Engineering Machinery Co., Ltd. boasts over 16 years of experience in the field of excavator hydraulic cylinders, establishing itself as a reliable worldwide provider and producer. We focus on an extensive selection of products, including tracked excavator arm cylinders, boom cylinders, bucket cylinders, cylinder barrels, piston rods, customized hydraulic cylinders, sealing kits, hydraulic pumps, and electrical parts—designed to be compatible with a wide range of excavator models. With shipments spanning more than 100 countries and regions, we are dedicated to offering premium, long-lasting solutions tailored to fulfill the demands of our global clientele.

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