UNB600 Mud Pump Crankshaft / Eccentric Shaft Assembly

This UNB600 mud pump crankshaft (also called eccentric shaft assembly) is the core power transmission component of the UNB600 double-acting duplex mud pump, widely used in oilfield drilling, geological exploration, water well drilling and mining dewatering projects. It is responsible for converting the rotational motion from the gearbox into the reciprocating linear motion of the connecting rod and crosshead, driving the fluid end piston to complete the suction and discharge of high-pressure drilling fluid, and is the key component that determines the stability and service life of the mud pump.

Manufactured from high-strength alloy steel (42CrMo / 40CrNiMo), this crankshaft undergoes strict forging, heat treatment (quenching and tempering, surface hardening), precision CNC machining and dynamic balance calibration. It features excellent fatigue resistance, impact resistance and load-bearing capacity, fully meeting the high-load, high-torque working conditions of the UNB600 mud pump. It is a 100% direct replacement for original equipment, ensuring perfect fit, smooth transmission and easy installation without modification.

The crankshaft is strictly manufactured according to original UNB600 mud pump drawings, with high-precision journal and eccentric structure to ensure stable operation, low vibration and long service life. The high-quality alloy steel material provides great tensile strength and wear resistance, adapting to harsh oilfield working environments. We also provide matching connecting rods, crossheads, bearings and full sets of UNB600 mud pump accessories for one-stop procurement. Custom processing based on customer drawings and special material requirements is also available.

The product meets ISO 9001 and API 7K standards, with strict quality inspection including flaw detection, hardness test, dimensional accuracy test and dynamic balance test. Our monthly supply capacity is 30 sets, and the lead time is 25-40 days after receiving the deposit. It is packed in standard export fumigated wooden crates with rust-proof treatment for safe transportation.