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泉州市伍峰机械制造有限公司

QUANZHOU WUFENG MACHINERY MANUFACTURING CO., LTD.

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PC130

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PC130

The excavator arm moves back and forth, requiring frequent braking and lifting. Most of the potential energy is consumed on the multi way valve port, which not only wastes energy, but also converts a large amount of potential energy into thermal energy, increasing fuel consumption, and easily causing hydraulic system heating, reducing the lifespan of components.

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Tensioning oil cylinder and assembly

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A new type of tensioning oil cylinder applied in the tensioning device of excavators, wherein the piston rod is built-in in the cylinder body, and an oil injection through hole is set at the outer end of the cylinder body. The oil injection through hole runs through the interior of the piston rod, and a small oil cup is set at the inlet of the oil injection through hole. The small oil cup is equipped with a grease nozzle, and the cylinder sleeve is screwed to the outer wall of the cylinder body. The inner end of the screw is fixedly connected to one end of the piston rod, and a sealing ring is set at the connection between the screw and the piston rod, The sealing ring is arranged at the bottom end of the cylinder body; A guide sleeve, oil seal, and retaining ring are arranged between the lower end of the outer wall of the piston rod and the inner wall of the cylinder block; The outer end of the screw is fastened with a nut, and the outer side of the nut is equipped with a stop washer. This utility model has the characteristics of novel structure, more regular appearance, more scientific structural combination, more advanced technology, standardized material, high strength, more stable quality, stronger durability, and longer service life

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