مضخة هيدروليكية Caterpillar 2959674 لـ حفارة متوسطة الحجم Caterpillar E336DL

Our main products are Excavator Hydraulic spare parts, Hydraulic main pump, Swing Motor, Travel Motor, Final Drive Ass'y, Swing Device Ass'y, Swing Gearbox, Travel Gearbox, Gears, Regulators, Relief Valve, Fan motor and other hydraulic items with genuine and aftermarket quality.

Until now, our products enjoy a high reputation and have been exported to more than 125 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with its own brand "Belparts" which are widely acclaimed by foreign customers.

If you are interested in any models, please contact with us with the OEM model code, and we will share with our product catalogue and check the prices for you very soon.

If you are interested in any models, please tell us the OEM model code, and we can check the prices for you very soon.
More detail please contact with us!

Hydraulic pumps act as core power sources in hydraulic systems, mainly converting mechanical input (from engines or motors) into hydraulic energy. Their working principle relies on volume change: internal components like pistons or gears move to expand the inlet cavity, forming low pressure to suck in fluid from reservoirs. Then, they compress the cavity to raise fluid pressure, pushing it through outlets into system pipelines.​

Their roles are vital. First, they supply stable high-pressure fluid to drive actuators (cylinders or motors), enabling machinery movements such as excavator arm lifting. Second, they regulate fluid flow and pressure via matching valves, adapting to different load needs. Third, they ensure efficient energy transfer—minimizing loss to keep equipment running smoothly. Without them, heavy machinery like loaders or presses would lose the power to perform heavy-duty tasks, making them indispensable in engineering fields.