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CHANGZHOU ZHAOTONG MACHINERY CO., LTD.

SNIEC N6.765

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Hydraulic cylinder tubes

Product Category: Equipment and accessories

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Product Introduction

Hydraulic cylinder tubes are core pressure-bearing parts for hydraulic and pneumatic equipment, manufactured by cold drawing, honing and roller burnishing processes for construction machinery, coal mining, petroleum, auto and plastic machinery. They deliver outstanding dimensional accuracy. The inner diameter ranges from Φ32 to Φ700mm with a maximum length of 13,000mm. Strictly controlled roundness, concentricity and straightness prevent piston jamming and reduce seal wear. Honed inner walls have ultra-low roughness, cutting friction, oil leakage and extending service life of seals. Various materials like 45#, Q355 and 27SiMn are optional. Stress-relief annealing boosts tensile and yield strength to resist high pressure and heavy loads. Flaw-free tubes pass non-destructive testing and support secondary machining such as welding and turning. Custom sizes and full inspection reports are provided to meet customized hydraulic cylinder demands.

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International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines and Construction Vehicles

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