Nachi excavator main pump PVD-0B-21L3PS-6G3-4694F hydraulic pump assy

Engineered for extreme durability, these pumps feature hardened alloy pistons and copper-plated rotors to withstand high-frequency excavator shocks. Integrated pressure compensation and load-sensing controls adapt to dynamic working conditions. Beyond power transmission, they maintain stable pressure via closed-loop feedback, enabling smooth coordination of lifting, slewing, and digging—even in dusty or extreme-temperature environments.
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