PVG 1504 1506 VOE 15043454 VOE 15068638 High Pressure Piston Oil Hydraulic Pump PVG-130CC PVG-100CC

I. Core Technical Parameters
This plunger pump is of axial variable type with a rated displacement of 50 cubic centimeters per revolution. The volumetric efficiency shall not be less than 95%, and the total efficiency shall not be less than 91%. The continuous working pressure is 280 bar, and the short-term peak pressure is 315 bar (with a cumulative duration not exceeding 50 hours). The rated speed is 1500 revolutions per minute, the maximum speed is 2000 revolutions per minute, and the minimum stable speed is 500 revolutions per minute. When the speed fluctuation is ≤±2%, the flow stability error is ≤1.2%. Under rated working conditions, the maximum output flow is approximately 75 liters per minute, corresponding to a continuous output power of about 30 kilowatts.The cylinder block assembly adopts a high-strength aluminum alloy shell with 7 hard alloy coated plungers inside. The output shaft has a diameter of 45 millimeters and can withstand a radial force of no more than 1200 Newtons and an axial force of no more than 800 Newtons. It is installed by flange, conforming to the common installation dimensions of construction machinery. The oil inlet is of G2 internal thread and the oil outlet is of G1½ internal thread. The overall weight is approximately 45 kilograms. Compatible with L-HM 46/68 anti-wear hydraulic oil. The working temperature range is from -10℃ to 80℃. The contamination degree of the oil should reach ISO 4406 16/13 grade, and the protection grade is IP65.

Ii. Working Principle

It adopts the axial plunger variable working principle. The core achieves energy conversion and flow regulation through the reciprocating motion of the plunger and the variable mechanism in coordination. Inside the pump body, the cylinder rotates synchronously with the transmission shaft. The fixed swash plate forms a restraint on the end of the plunger through the sliding shoe, and the other end of the plunger is embedded in the cylinder body hole to form a sealed oil cavity and is connected to the precision distribution plate. When high-pressure oil enters the sealed cavity through the distribution plate, the oil pressure pushes the plunger to extend outward. The plunger drives the cylinder to rotate and drives the output shaft to output torque. When the plunger rotates with the cylinder block to the oil return area, the volume of the sealed cavity shrinks, and the oil is discharged through the distribution plate, completing the oil suction and discharge cycle.

The inclination Angle of the swash plate can be adjusted through a dual-variable mechanism of load sensitivity and pressure compensation to achieve stepless control of the output flow from 0 to 100% : when the load increases, the pressure is automatically raised and matched with the corresponding flow rate; when the load decreases, the displacement is synchronously reduced to save energy consumption. The output torque is directly proportional to the working pressure, and the rotational speed is positively correlated with the input flow rate. The multi-plunger uniform distribution design significantly reduces operational pulsation.

Iii. Product Features and Advantages

It has significant performance advantages. With an optimized flow distribution pair and curved swash plate design, its volumetric efficiency can reach over 95%, saving 15-20% energy compared to ordinary plunger pumps of the same specification. The flow pulsation rate is ≤1.5%, and the operating noise at 1 meter is ≤84 decibels, with outstanding low-noise and stable characteristics. It has bidirectional rotation capability, with the consistency error of flow and pressure in both forward and reverse rotation being ≤2%, making it suitable for bidirectional drive scenarios. The efficiency remains above 90% within a wide speed range of 500 to 2000 revolutions per minute, meeting the demands of various working conditions.

Structurally, the aluminum alloy shell achieves a balance between lightweight and high strength, reducing the weight by 15% compared to cast iron pumps of the same displacement. The plunger and sliding shoe are treated with plasma spray hardening, featuring excellent wear resistance and an average mean time between failures of ≥ 22,000 hours. The modular valve group layout allows key components such as pressure compensation valves and load sensitive valves to be disassembled and assembled separately. During maintenance, there is no need to disassemble the core components of the pump body, increasing maintenance efficiency by 40%. Supports left and right rotation direction customization to adapt to different equipment pipeline layouts.

It has strong environmental adaptability, with an internal anti-cavitation oil suction structure. The oil suction height can reach 500 millimeters, and no auxiliary pump is required. It can start normally without preheating in a low-temperature environment of -10℃ and has stable sealing performance in a high-temperature working condition of 80℃. It has better tolerance to oil contamination than conventional plunger pumps and can extend the oil replacement cycle by 30%.

Iv. Usage Functions and Purposes

The core function is to efficiently convert the mechanical energy of the prime mover (motor, engine) into hydraulic energy, providing a high-pressure and stable oil source for the system. The variable mechanism is used to achieve dynamic distribution of traffic on demand, precisely matching load changes. It is equipped with a pressure overload protection function. When the system pressure exceeds the limit, it will automatically limit the displacement to protect the pump body and pipelines from impact damage. It can achieve both forward and reverse oil supply, directly drive the actuator to act in both directions, and reduce the configuration cost of the system’s directional control valve.

It is widely used in medium and large high-pressure hydraulic systems: in the field of construction machinery, it serves as the main pump for excavators, loaders, and cranes, driving working devices such as booms, buckets, and telescopic booms. In the industrial field, it is compatible with hydraulic presses and large injection molding machines, providing high-pressure power for pressing, mold locking, etc. It is also used in the hydraulic circuits of mining crushing machinery, ship deck machinery and metallurgical equipment.

V. Applicable Machines and Scenarios

In industrial scenarios, it is compatible with medium-sized hydraulic presses (with a working pressure of 250-280 bar and a flow rate of 50-75 liters per minute), providing stable high-pressure power for the pressing mechanism. The pressure compensation function ensures the forming accuracy of the workpiece. Compatible with large injection molding machines (working pressure 220-260 bar), it drives the clamping mold and injection system. The load-sensitive feature enables precise flow matching at different injection molding stages, achieving an energy-saving effect of over 18%. In metallurgical auxiliary equipment, it is used in the hydraulic system for adjusting rolls, and the shock-resistant design ADAPTS to load fluctuations.

In the context of construction machinery, the main working system suitable for medium-sized excavators (with a working pressure of 260-280 bar and a flow rate of 60-75 liters per minute) simultaneously drives the compound actions of the boom, bucket arm, and bucket, ensuring uniform flow distribution and rapid response. The lifting and steering system suitable for loaders (working pressure 240-260 bar), with a vibration-resistant design to adapt to the bumpy environment of construction sites. In mining machinery, the drive system of the crushing hammer used in small crushers features high wear resistance, making it suitable for dusty working conditions.

Six. Similar models

Among different specifications and models of the same series, VOE 15068637 has a displacement of 40 cubic centimeters per revolution, a continuous working pressure of 280 bar, a flow rate of approximately 60 liters per minute, a power of 24 kilowatts, and a weight of approximately 38 kilograms. It is suitable for medium and small-sized hydraulic systems. VOE 15068639 has a displacement of 63 cubic centimeters per revolution, a continuous working pressure of 260 bar, a flow rate of approximately 95 liters per minute, a power of 38 kilowatts, and a weight of about 55 kilograms. It is suitable for large high-pressure systems.

Among different series of the same type, VOE 15068640 is a constant power variable type with a constant power output, which is suitable for equipment such as concrete pump trucks and shield machines that work in coordination with multiple actuating elements. VOE 15068641 is a manual variable type. The flow rate is adjusted through a mechanical handle and is suitable for simple high-pressure systems that do not require automatic control. There is also a cast iron shell reinforced type, with the continuous working pressure increased to 315 bar, suitable for ultra-high pressure test benches, heavy-duty presses and other scenarios.
PVV-540-B2BV-RSFY-V-S50SA
PVM-130-A2UV-RSFY-P-1NNSN
PVWH-25-RSAY-C2SN-450C
PVWJ-130-AlUV-LSAY-P-1NNNN
PVWJ-098-AlUV-LSAY-P-1NNNN
PVWJ-076-AlUV-LSAY-P-1NNNN
PVWW-34-AlUV-LSAY-CN-NN
PVWJ-011-A1UV-RSAY-P-1NNN
PVV-250-BIUV-RSFY-F-100SB
PVWJ098-A1UP-RDFS-P-1NN/KNN-CP
PVG-130-F1UV-LGFY-P-1NNNN
PVK-140-A1UV-RDFS-P-1NNSN-CP/133
PVV-250-B1BV-RSFY-P-1NNSN
PVV-250-B1BV-LDFY-P-1NNSN-CP
PVG-100-F1UV-RGFK-P-INN/G047SN/B27
PVWJ-098-AIUP-RDFS-P-1NN/KNN-CP
PVWJ-011-A1UV-RGAY-P-1NNSN
PVV-250-B1UV-RSFY-F-100SB
PVV-250-B1UV-V-S25SA/147
PVK-140-A1UV-RDFS-P-1NNSN-CP/217
PVWH-15-LDFY-CNSNTH-05
16PUPVM98/75-ZJ200
PVWW-34-LSAY-CN-NNNN
PVG100E1UVRGFKP-1NN/GO47SN/751
PVG-075-F1UV-LSFY-P-1NNSN-NN
PVM-046-A1UB-RSFY-P-1NNNN
PVV-540-B2BV-RSFY-V-S50SA
PVWJ-064-A1UV-RSFY-P2NNSN/0279
PVWJ-064-A1UV-RSFY-P2NNSN/0279
PVG-100-F1UV-RGFK-P-1NN/G047SN/827
PVWH-25-RSAY-C2SN-450C

PVG-100-F1UV-LDFY-P-1NNSN-CP
PVG-100-F1UV-LDFY-P-1NNSN-CP
PVG-100-F1UV-LDFY-P-1NNSN-CP
PVG-130-F1UB-LSFY-P-1NNNN
PVG-130-F1UV-RDFZ-P-1NNSN-CN
PVG-130-F1UV-LGFK-P-1NN/FNN
PVG-130-F1UV-RGFK-P-1NN/H100SN-NN
PVG-130-F1UV-RDFZ-P-1NNNN
PVG-130-F1UV-LDFY-P-1NN/H050NN-CP
PVG-100-F1UV-LDFY-P-1NNSN-CP
PVG-100-FIUV-LGFZ-P-1NNSN-NN
PVG-048-F1UV-LGFY-N-1NNNN-AA/05
PVG-100-F1UV-LGFY-N-20RSA
PVG-075-F1UV-LSFY-P-1NNSN-NN
PVG-075-F1UV-RDFY-N-1NNNN-AA/05

Vii. Precautions for Use

When installing, it is necessary to ensure that the flatness of the installation plane is ≤0.05 millimeters, and the coaxiality of the pump shaft and the drive shaft is ≤0.08 millimeters. Elastic couplings should be used for connection, and rigid connection is strictly prohibited. The oil suction pipe is selected as a short straight pipe with an inner diameter of ≥50 millimeters and a length of no more than 1.2 meters. A 120-mesh filter is installed. The oil suction port is ≥250 millimeters away from the bottom of the oil tank, and the oil suction resistance is ≤0.02 megapascals to prevent cavitation. The drain pipe should be connected to the oil tank separately, with a back pressure of no more than 0.1 megapascals. It must not be mixed with the return pipe. Before installation, it is necessary to confirm that the rotation direction is consistent with the equipment requirements to avoid installing it in the wrong direction and thus failing to supply oil.Before starting, check the oil level in the oil tank, fill the pump with clean and anti-wear hydraulic oil, and manually rotate the pump 3 to 4 times to ensure there is no jamming. After confirming the correct rotation direction through jog start-up, run it no-load for 10 minutes until the oil temperature rises above 35℃. Then gradually load it, with each pressure increase not exceeding 50 bar and an interval of no less than 3 minutes. Sudden loading to the rated pressure is strictly prohibited. During operation, monitor the oil temperature (normal 45-65℃, maximum not exceeding 80℃) and pressure (not exceeding 280 bar). If abnormal noise, vibration or leakage exceeds 2 milliliters per hour, stop the machine immediately for inspection.

In terms of maintenance, check the oil level, oil temperature and sealing condition every 500 hours. Check the filter and replace the filter element every 1500 hours. When the oil contamination level exceeds the standard, replace the oil immediately and clean the system. Disassemble and inspect the wear of the plunger, sliding shoe and distribution plate every 2,500 hours. Replace the sealing parts in time if they are found to be aged or damaged. Hydraulic oils of different brands must not be mixed. In cold regions, the oil should be preheated to above 10℃ before starting.

It is strictly prohibited to start or operate without oil. Even short-term dry running (more than 3 seconds) can cause sintering damage to the plunger and cylinder block. It is prohibited to operate simultaneously at the highest pressure and the highest rotational speed for a long time. The cumulative duration of short-term peak pressure shall not exceed 50 hours. Before shutting down, the load should be unloaded to low pressure and run for 5 minutes. Only when the oil temperature drops below 60℃ should the power be cut off. For short-term storage (≤30 days), the oil port should be sealed and the vehicle should be turned by hand once a month. For long-term storage (>30 days), anti-rust oil should be injected, and anti-rust grease should be applied to the output shaft. Before reusing, replace the sealing parts and conduct a no-load test run for 3 hours.