مضخة هيدروليكية Caterpillar M322C 240-0142 لـ حفارة Caterpillar

ENGINE - MACHINE:3056E
We specialize in providing high-quality excavator hydraulic components to keep your machinery running at peak performance. Our core product range covers swing motors, swing motor assemblies, hydraulic pumps, and a full line of essential hydraulic parts—all engineered to meet strict industry standards for durability and reliability.

Whether your equipment is from leading brands like Kato, Hyundai, Mitsubishi, Komatsu, or Hitachi, we have the precise parts to fit your specific model.
Count on us for consistent quality, competitive pricing, and responsive service—your go-to source for excavator hydraulic solutions.

As the "heart" of hydraulic systems, hydraulic pumps power excavators, loaders, etc., by converting mechanical energy (from engines/motors) into hydraulic energy via energy conversion and fluid displacement.​
Their work has three stages: In the suction phase, internal parts (gears, pistons, vanes) create a vacuum to draw fluid from the reservoir through a one-way valve. Next, the compression phase reduces the fluid chamber’s volume, boosting pressure (adjusted for light/heavy tasks like excavator arm lifting). Finally, the discharge phase pushes pressurized fluid through an anti-backflow valve to actuators (cylinders/motors), generating motion for digging or lifting.​
Gear, piston, and vane pumps follow this cycle but differ in design. All need tight seals and precise alignment to avoid leakage, ensuring efficient energy transfer for heavy machinery.