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construction hydraulic pump

The construction hydraulic pump is engineered to deliver high pressure and stable flow in heavy machinery control and power transmission systems. It is an axial piston type with a swash plate design, offering a displacement capacity between 45 and 180 cubic centimeters per revolution. Operating pressure ranges from 250 to 350 bar, with a peak pressure tolerance up to 420 bar. The housing is made of cast aluminum alloy with a 25-micron hard nickel inner coating for wear resistance. The operating temperature range is from -25°C to +110°C.

Construction hydraulic pumps feature over 93 percent volumetric efficiency and optimized flow paths to minimize pressure loss. The input shaft is made of hardened 16MnCr5 steel with heat treatment for durability. Sealing is achieved with FKM O-rings resistant to mineral oils and pressures up to 400 bar. Roller bearings with a 40 kN radial load capacity extend pump life beyond 12,000 hours. These properties ensure reliable and continuous performance in excavators, loaders, and bulldozers.
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