Product Overview
The HPP-VB2V series is a highly representative swashplate-type variable displacement piston pump product line from JTEKT (formerly TOYOOKI). This series includes models HPP-VB2V-F8A3, HPP-VB2V-F8A5, HPP-VB2V-L8A3, HPP-VB2V-L8A5, as well as -EE suffix variants with axial ports. These pumps are widely used in high-pressure hydraulic systems, construction machinery, marine equipment, and industrial applications.
As a professional hydraulic component manufacturer, we provide 100% interchangeable replacement solutions for the JTEKT HPP-VB2V series. Every HPP-VB2V series piston pump undergoes 100% performance testing under simulated actual operating conditions—from displacement accuracy and pressure stability to volumetric efficiency—fully benchmarked against JTEKT original equipment standards. The pump body is manufactured from high-strength cast iron, with core components precision-machined and heat-treated to ensure exceptional durability and reliability.
Model Code Explanation:
HPP: Variable displacement piston pump series code
VB2V: Second-generation swashplate-type variable piston pump
F: Flange mounting type
L: Foot mounting type
8: Displacement code, corresponding to 8 cm³/rev theoretical displacement
A3: Pressure adjustment range 1–7 MPa
A5: Pressure adjustment range 3–14 MPa
-EE: Axial port type (no suffix indicates side board type)
-B: Product version code (changed from -A to -B effective February 2016)
-G: Water-glycol fluid specification (no code indicates petroleum-based fluid)
Technical Specifications
HPP-VB2V-F8A3 / HPP-VB2V-F8A3-EE
Theoretical Displacement: 8.0 cm³/rev
Rated Pressure: 14 MPa
Pressure Adjustment Range: 1–7 MPa
Rated Speed: 1,800 min⁻¹
Maximum Speed: 2,500 min⁻¹
Control Type: Swashplate-type variable piston pump, pressure-compensated (fixed displacement characteristic A)
Mounting Method: Flange type (F)
Port Type: Side board type (no suffix) / Axial port type (-EE)
Fluid Compatibility: Petroleum-based hydraulic fluid
Discharge Port Size: Rc1/2
Weight: Approx. 16 kg
HPP-VB2V-F8A5 / HPP-VB2V-F8A5-EE
Theoretical Displacement: 8.0 cm³/rev
Rated Pressure: 14 MPa
Pressure Adjustment Range: 3–14 MPa
Rated Speed: 1,800 min⁻¹
Maximum Speed: 2,500 min⁻¹
Control Type: Swashplate-type variable piston pump, pressure-compensated (fixed displacement characteristic A)
Mounting Method: Flange type (F)
Port Type: Side board type (no suffix) / Axial port type (-EE)
Fluid Compatibility: Petroleum-based hydraulic fluid
Discharge Port Size: Rc1/2
Weight: Approx. 16 kg
HPP-VB2V-L8A3 / HPP-VB2V-L8A3-EE
Theoretical Displacement: 8.0 cm³/rev
Rated Pressure: 14 MPa
Pressure Adjustment Range: 1–7 MPa
Rated Speed: 1,800 min⁻¹
Maximum Speed: 2,500 min⁻¹
Control Type: Swashplate-type variable piston pump, pressure-compensated (fixed displacement characteristic A)
Mounting Method: Foot mounting type (L)
Port Type: Side board type (no suffix) / Axial port type (-EE)
Fluid Compatibility: Petroleum-based hydraulic fluid
Weight: Approx. 16 kg
HPP-VB2V-L8A5 / HPP-VB2V-L8A5-EE
Theoretical Displacement: 8.0 cm³/rev
Rated Pressure: 14 MPa
Pressure Adjustment Range: 3–14 MPa
Rated Speed: 1,800 min⁻¹
Maximum Speed: 2,500 min⁻¹
Control Type: Swashplate-type variable piston pump, pressure-compensated (fixed displacement characteristic A)
Mounting Method: Foot mounting type (L)
Port Type: Side board type (no suffix) / Axial port type (-EE)
Fluid Compatibility: Petroleum-based hydraulic fluid
Weight: Approx. 16 kg
Important Note: The above specifications are compiled from JTEKT official technical documentation. Different suffix codes (-EE, -B, -G, etc.) represent different port types, versions, and fluid compatibility. Please refer to the product nameplate or technical agreement for exact specifications.
Key Technical Advantages
1. Ultra-Low Noise Performance Across the Entire Pressure Range
The HPP-VB2V series features a swashplate-type variable displacement design that maintains excellent low-noise performance across the entire pressure range. At 14 MPa rated pressure and 1,200 min⁻¹ speed, noise measured at 1 meter from the pump is only 53 dB(A) at cut-off and 58 dB(A) before cut-off. This noise level is among the best in its class, making it ideal for noise-sensitive environments.
2. Exceptional Efficiency for Significant Energy Savings
The pump achieves 95% volumetric efficiency and 90% total efficiency (at 13.5 MPa, 1,800 min⁻¹). This ultra-high efficiency means minimal power loss and reduced fluid temperature rise, allowing the use of smaller reservoirs for system miniaturization and cost reduction.
3. Superior Response Characteristics
The response time from 14 MPa cut-off to 13.5 MPa is only 0.06 seconds. This exceptionally fast response ensures rapid system adjustment during load changes, meeting the demands of high-dynamic-response applications.
4. Integrated Multiple Control Options for High System Integration
The HPP-VB2V series integrates multiple control methods into a complete control system, offering comprehensive advantages including energy savings, compact size, and low cost. The built-in pressure compensation mechanism eliminates the need for separate relief valves and unloading valves, simplifying hydraulic system design.
5. High Reliability with Long Service Life
Manufactured from high-strength cast iron with precision machining processes, the mature swashplate-type variable design ensures proven reliability. Bearings are designed for long service life, maintaining stable performance across the entire pressure range. Minimal power loss further enhances overall system reliability.
Application Areas
Hydraulic Presses & Forming Machinery: Providing stable high-pressure oil supply for pressing processes
Construction Machinery: Hydraulic systems for excavators, loaders, and related equipment
Marine Hydraulic Systems: Steering gears, winches, and other marine hydraulic power supplies
Injection Molding & Die-Casting Machines: Precise speed and pressure control
Machine Tool Hydraulic Systems: Spindle drives, feed systems, and more
Wind Turbine Pitch Control Systems: Multi-pump synchronous control applications
Metallurgical Equipment: Rolling mill hydraulic systems, coilers, etc.
Test Equipment: High-pressure oil sources for aerospace ground test facilities
Expert Maintenance Tips
1. Fluid Cleanliness Management
Piston pumps are extremely sensitive to fluid cleanliness. Use hydraulic fluid meeting NAS Class 7 or higher cleanliness standards. Install high-precision filters on the pump suction line to prevent contaminants from entering and causing abnormal wear to pistons and cylinder bores.
2. First Start-up and Air Bleeding
Purge air from the highest point of the pump body before the first start-up to ensure the pump cavity is fully filled with hydraulic fluid. Never start the pump dry—this will cause severe wear or seizure of pistons and slippers.
3. Pressure Adjustment Precautions
A3 suffix models have a pressure adjustment range of 1–7 MPa, while A5 suffix models range from 3–14 MPa. Do not exceed the maximum adjustment range for each model, as this may damage internal control components. Pressure adjustments should be performed slowly while the system is running.
4. Fluid Compatibility Verification
Standard models are designed for petroleum-based hydraulic fluids. For water-glycol fluid applications, select the dedicated -G suffix model. Using incorrect fluids will cause internal component corrosion or inadequate lubrication.
5. Coupling Installation and Shaft Alignment
The pump connects to the motor via coupling. Ensure proper coaxial alignment between the pump shaft and motor shaft, with misalignment not exceeding 0.05 mm. Excessive misalignment will cause abnormal bearing loads and shorten pump service life.
6. Regular Inspection and Maintenance
Inspect the system filter element condition every 200 operating hours. Regularly monitor the pump for abnormal operating noise—if abnormal noise or system pressure drop is detected, shut down immediately for inspection. Bearing design life exceeds 30,000 hours.
