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The plunger pump is a key component in hydraulic systems. It operates by the reciprocating motion of the plunger within the cylinder, which changes the volume of the sealed working chamber to achieve suction and discharge of oil. Plunger pumps are widely used across various sectors of the petroleum industry due to their high rated pressure, compact structure, high efficiency, and convenient flow adjustment.

1000-type Quintuple Plunger Pump Assembly

The plunger pump is a crucial component in hydraulic systems. It operates by the reciprocating motion of the plunger inside the cylinder, causing changes in the volume of the sealed working chamber to achieve oil suction and discharge. Plunger pumps are widely used in various sectors of the petroleum industry due to their high rated pressure, compact structure, high efficiency, and convenient flow adjustment.

2500-type Quintuple Plunger Pump Assembly

2800-type Quintuple Plunger Pump Assembly

Standard-type Power End Connecting Rod

As a key transmission component of the plunger pump power end, the connecting rod is responsible for precisely converting the rotational motion of the crankshaft into the reciprocating linear motion of the crosshead. Its performance directly determines the efficiency of power transmission, the smoothness of operation, and the overall service life of the pump unit. Our connecting rods are precision-forged from high-strength alloy steel and undergo strict heat treatment processes to ensure exceptional tensile strength, outstanding fatigue resistance, and excellent wear resistance. Precision machining guarantees the accuracy of bearing bores and the smoothness of contact surfaces, effectively reducing friction losses and vibration. Each connecting rod undergoes non-destructive testing to ensure reliable quality, helping the equipment operate safely and efficiently under harsh working conditions.

Standard-type Power End Crankshaft

As the core driving hub of the plunger pump power end, the crankshaft efficiently converts the rotational energy of the prime mover into the reciprocating power of the plungers. The stability of the crankshaft directly affects the output efficiency and long-term reliability of the pump unit. Our crankshafts are forged from high-strength alloy steel with continuous and intact internal fiber flow. Through gradient heat treatment, they achieve an ideal balance of toughness and hardness. The precision-ground crank pins and main journals are further strengthened with deep rolling processes to enhance fatigue life. Capable of smooth, low-noise operation under high-speed conditions, these crankshafts are ideal for demanding applications such as oilfield fracturing and ultra-high-pressure cleaning.

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