PVM-011-B1UB-LSAY PVM011B1UBLSAY-P-1NNNN Hydraulic Pump PVM130A2UVRDFSPINNSNCP289 PVM-130-A2UV-RDFS-P-1NNSNCP-289

It belongs to the swash plate type variable axial piston pump. The core is to achieve the suction, discharge, and pressurization of oil based on the change of sealed volume. The specific process is as follows: The transmission shaft drives the cylinder block to rotate, and the fixed swash plate forces the 9 plungers inside the cylinder block to performa  reciprocating motion. When the plunger extends outward, the volume of the working chamber inside the pump expands, creating a negative pressure, and the hydraulic oil is sucked in through the oil inlet. When the plunger retract inward, the volume of the working chamber shrinks, and the oil is squeezed to generate high pressure. At the same time, the stroke of the plunger’s reciprocating motion is changed by adjusting the inclination Angle of the swash plate, thereby altering the displacement of the pump. The oil distribution plate precisely controls the suction and discharge path of the oil, preventing backflow and continuously supplying high-pressure oil to the hydraulic system.
Functional features
Flexible variable adjustment: By changing the inclination Angle of the swash plate, the displacement can be freely adjusted to meet the different speed and force requirements of the hydraulic actuator, and can cope with the fluctuating load conditions of industrial equipment.
Strong operational stability: It adopts a 9-plunger structure design, ensuring uniform oil delivery, reducing pressure and flow fluctuations, guaranteeing smooth operation of hydraulic equipment, and avoiding operational jitter.
Strong adaptability: Equipped with specific sealing and interface accessories, it can be adapted to different industrial pipelines. Moreover, the horizontal installation design can be integrated into the hydraulic systems of most equipment, ensuring high installation compatibility.
Product advantages
Outstanding silent effect: It adopts a teardrop-shaped pump body shell design, reducing noise emissions by more than 50% compared to traditional plunger pumps. The operating noise is ≤75dB, making it suitable for workshop environments that are sensitive to noise.
High durability: High-load bearings combined with cast steel housings can withstand the impact and wear under high-pressure conditions. Meanwhile, the compatible sealing structure can reduce oil leakage and extend the service life.
Outstanding energy efficiency performance: Supports variable adjustment, allowing the output flow to be adjusted according to the system load requirements, avoiding unnecessary energy consumption. Compared with fixed displacement pumps, it has a significant energy-saving effect, and the oil temperature control is excellent, reducing system heat loss.
Operating environment
Oil conditions: L-HM series high-pressure anti-wear hydraulic oil must be used. The kinematic viscosity of the oil should be controlled at 27-43 mm²/S. It is strictly prohibited to mix in metal debris, water and other impurities.
Temperature range: The ideal working oil temperature is 30℃ – 60℃, with a maximum not exceeding 80℃. The ambient temperature should be controlled between -10 ℃ and 50℃ to prevent extreme temperatures from causing deformation of the shell or abnormal viscosity of the oil.
Installation environment: It should be installed in a place free of dust and corrosive gases. The inlet pressure should be maintained at 0-0.34bar to prevent excessive inlet vacuum from causing cavitation damage to the pump body.
This model is suitable for high-pressure hydraulic systems of heavy industrial equipment. Common scenarios include injection molding machines, small stamping machines and other machine tools, providing power for the opening and closing of molds and stamping actions. Auxiliary hydraulic devices for mining machinery, such as the propulsion systems of small conveyors and roadheaders; Hydraulic drive systems for thin oil stations and reactor stirring in the chemical industry; In addition, it can also be used in the hydraulic circuits of agricultural heavy machinery and port lifting equipment, adapting to the working conditions of continuous high pressure and load fluctuations.
The PVM series model list:

This series covers the entire displacement range of 18-141cc /rev. Common models are divided into multiple specification groups, as detailed below
Small-displacement models: PVM018, PVM020
Small and medium displacement models: PVM045, PVM050, PVM057, PVM063
Medium displacement models: PVM074, PVM081, PVM098, PVM106
Large-displacement models: PVM131, PVM141