oem 325B 325BL Excavator Hydraulic Main Pump 123-2229 1232229

วัสดุ: The main material of the pump body is CR40, which has good strength and wear – resistance, and can adapt to the harsh working environment of excavators.

Hydraulic Parameters: The main relief setting pressure is 34.3 Mpa, and the maximum flow of the main pump is 416 L/min, which can provide sufficient power for the excavator’s hydraulic system.

Internal Structure: It includes components such as drive shaft, main shaft, 14 pistons, 28 rings, 2 retainer plates, 2 center pins, 8 disc springs, 2 disc spring holders, 2 cylinder blocks, a left – hand valve plate, a right – hand valve plate, and a head cover. There are also 2 gears, 4 large – size bearings, 2 small – size bearings, and a seal kit.