Wheat Harvester Hydrostatic Transmission High Torque Hydraulic Dosing Pump
Product Summary
Highland High Torque Hydraulic Dosing Pump Wheat Harvester Hydrostatic Transmission Quick Detail: · Cast iron housing · Hydraulic components · Model HPV50+HMF50 · Power components of hydraulic systems · Higher efficiency · Category dosing pump · Simple layout · System Solutions · Work fast · Fully ...
Product Custom Attributes
High Torque Hydraulic Dosing Pump
,Harvester Hydraulic Dosing Pump
,Wheat Harvester Hydrostatic Transmission
Basic Properties
Trading Properties
Product Description
Highland High Torque Hydraulic Dosing Pump Wheat Harvester Hydrostatic Transmission
Quick Detail:
· Cast iron housing
· Hydraulic components
· Model HPV50+HMF50
· Power components of hydraulic systems
· Higher efficiency
· Category dosing pump
· Simple layout
· System Solutions
· Work fast
· Fully replace imported products
· Patent certificate certification
· Application wheat harvester
· 1 year warranty

Description:
Specifications:
Highland Wheat harvester hydrostatic transmission features
By designing and manufacturing static hydraulic transmission, we can provide axial hydraulic pump and hydraulic motor assembly and hydraulic system with high quality, high-performance parameters
Highland PV+MF Series Hydrostatic Transmission Technical parameter
| PV hydraulic pump and MF hydraulic motor series | 20 | 21 | 22 | 23 | ||
| Displacement | Max displacement | ml/r | 33.3 | 51.6 | 69.8 | 90.5 |
| Speed | Max continuous working speed (Full load condition) |
r/min | 3500 | 3500 | 3200 | 3200 |
| Rated speed | r/min | 2500 | ||||
| Min continuous working speed | r/min | 500 | ||||
| Pressure | Rated working pressure | Mpa | 35 | |||
| Max working pressure (transient) | Mpa | 42 | ||||
| Continuous working pressure | Mpa | 30 | ||||
| Allowable shell pressure (Absolute) | Mpa | Constant0.25, Peak value0.5 | ||||
| Torque | Continuous output torque (Under continuous working pressure) |
Nm | 162.3 | 252.3 | 342.6 | 432.9 |
| Max output torque | Nm | 227 | 353 | 480 | 606 | |
| Power | Continuous output power | KW | 45 | 79 | 107 | 139 |
| Max power | KW | 62 | 95 | 114 | 150 | |
| Temperature | Allowable shell temperature | ℃ | 80 | |||
| Max working temperature of oil tank | ℃ | 70 | ||||
| weight | PV series hydraulic pump hydraulic oil drain | kg | 45 | 53 | 63 | 78 |
| PV series hydraulic motor hydraulic oil drain | kg | 30 | 34 | 40 | 47 | |

Notices:
Hydraulic oil
The suitable replacement period for hydraulic oil in a sealed tank system is 2000 hours, and more often if the hydraulic oil is contaminated with water or other external materials or subjected to abnormal operating conditions.
As a general recommendation, the 10µ inlet oil filter should be replaced every spring or every 1500 hours (whichever occurs first) on a sealed tank system, or in an open tank system with an air filter fill cap. The oil filter should be replaced every 500 hours.
Heat Exchanger
The heat exchanger core and fins are kept clean at all times for maximum cooling and system efficiency, and the exterior of the heat exchanger is checked daily for blockages and cleaned as needed.
Application:
Mixer truck: concrete mixer truck, cement mixer truck;
Coal mining machinery: scraper;
Industry: pharmaceutical machinery;
Transport vehicles: road rollers, concrete pump trucks, stabilized soil mixers

Application / Project Evidence
Concrete Mixer Truck Variable Piston Pump Project
For a concrete mixer truck application in Malaysia, the HPV50-MA-R-21 is documented within a hydraulic pump project.
Project details:
- Project — Variable Piston Pump for Malaysia
- Manufacturer — Shandong Highland Hydraulic Seiko Co., Ltd.
- Pump model — HPV50-MA-R-21
- Quantity — 50 units
- Application — Concrete Mixer Trucks
- Hydraulic circuit — Closed Circuit Hydraulic System
- Maximum displacement — 50 mL/rev
- Rated working pressure — 35 MPa
- Maximum transient pressure — 42 MPa
- Continuous working pressure — 30 MPa
- Maximum continuous working speed — 3500 r/min
The project documentation is backed by product technical parameters, engineering drawings and a factory performance test report for the HPV50-MA-R-21.
This project reference illustrates the documented application of the HPV50 series in concrete mixer truck equipment, giving customers application-specific technical evidence when evaluating the pump for similar hydraulic systems.
Factory Performance Testing
Before dispatch, every HPV50-MA-R-21 closed-loop axial piston pump undergoes a controlled performance test to confirm its principal operating characteristics.
The unit tested was run on 14 September 2026 at a test temperature of 31.4°C, with a rated displacement of 50 mL/rev, a rated pressure of 35 MPa and a peak pressure of 42 MPa.
The test captured pump speed, outlet pressure, flow rate, displacement, input torque, input power, output power, overall efficiency and volumetric efficiency. Each report names the component model HPV50-MA-R-21 and carries a unique component number for full traceability.
This gives engineers and buyers product-specific measured data instead of relying solely on nominal catalogue figures.
Recorded Test Data
The results captured during factory performance testing of the HPV50-MA-R-21 pump are shown below.
| Test Point | Speed | Pressure | Flow | Displacement | Input Power | Output Power | Overall Efficiency | Volumetric Efficiency |
|---|---|---|---|---|---|---|---|---|
| 1 | 1342 r/min | 4.4 MPa | 70.1 L/min | 52.2 mL/rev | 6.3 kW | 5.1 kW | 81.3% | 100% |
| 2 | 1331 r/min | 17.6 MPa | 67.4 L/min | 52.2 mL/rev | 22.3 kW | 19.8 kW | 88.7% | 96.9% |
| 3 | 1328 r/min | 30.2 MPa | 63.8 L/min | 52.2 mL/rev | 38.4 kW | 32.1 kW | 83.7% | 92% |
| 4 | 1333 r/min | 4.5 MPa | 68.5 L/min | 51.4 mL/rev | 6.0 kW | 5.1 kW | 85.6% | 100% |
| 5 | 1330 r/min | 18.3 MPa | 66.6 L/min | 51.4 mL/rev | 22.6 kW | 20.3 kW | 90% | 97.4% |
| 6 | 1328 r/min | 30 MPa | 64.2 L/min | 51.4 mL/rev | 37.5 kW | 32.1 kW | 85.5% | 94.1% |
Conditions of the test:
- Test temperature — 31.4°C
- Rated displacement — 50 mL/rev
- Rated pressure — 35 MPa
- Max pressure — 42 MPa
- Max speed — 3500 r/min
- Charge pressure — 1.6 MPa
- Charge flow — 12.4 L/min
Source: HPV50-MA-R-21 factory test report, component No. 02609140203023.
Engineering Drawing
Engineering drawings with full dimensions are supplied for the HPV50-MA-R-21 closed-loop axial piston pump.
They provide the dimensional and interface information necessary for system integration: overall mounting dimensions, shaft and spline specifications, hydraulic ports, leakage ports, pressure test ports, control-handle dimensions and control positions.
The drawings additionally specify the rotation direction and the pressure-port configuration for both clockwise and counterclockwise operation.
Key interface data include:
- HPV50-MA-R-21 product model
- 50 mL/rev rated displacement
- Ports A and B (main)
- Ports L1 and L2 (leakage)
- Port S (oil suction)
- Port M (pressure/test)
- Control: Manual / EP servo / Hydraulic servo
- Input shaft spline configuration by model
- SAE-related control and shaft dimensions
Hydraulic system designers can use these drawings to check mounting, shaft connection, port configuration and installation requirements before ordering.
Quality Control & Inspection
Before shipment, quality control of the HPV50-MA-R-21 covers product configuration, dimensional requirements and hydraulic performance.
The factory test record for the tested unit states the manufacturer, component model, component number, rated displacement, rated pressure, maximum pressure and test temperature; performance inspection covers operating speed, pressure, flow, displacement, input torque, input power, output power, overall efficiency and volumetric efficiency.
Dimensional and interface information for the pump body, hydraulic ports, leakage ports, shaft spline and control mechanism is provided in the engineering documentation.
Together, the configuration records, engineering documentation and recorded performance data give traceable technical evidence for the hydraulic pump supplied.
Technical Documents
Technical documentation is available to support product evaluation, hydraulic system design and installation planning for the HPV50-MA-R-21.
Available technical information includes:
- HPV50-MA-R-21 Technical Parameters
- Factory Performance Test Report
- Engineering Drawing
- Mounting and Overall Dimensions
- Hydraulic Port Configuration
- Input Shaft and Spline Specifications
- Control Handle and Servo Control Information
- Rotation Direction Configuration
- HPV Series Technical Parameter Table
- Model Selection Information
The HPV50-MA-R-21 technical documentation specifies a maximum displacement of 50 mL/rev, rated working pressure of 35 MPa, maximum transient working pressure of 42 MPa, continuous working pressure of 30 MPa and a minimum continuous operating speed of 500 r/min.
For engineering evaluation, customers can request the applicable technical documents and product-specific test information from Highland.
Engineering Team
Highland offers engineering support covering hydraulic pump selection, configuration and system integration.
For the HPV series this can include displacement selection, pressure and speed requirements, control configuration, rotation direction, shaft and mounting interfaces, hydraulic port configuration and application-specific needs.
For the HPV50-MA-R-21, the engineering documentation available defines displacement, operating pressure, speed range, torque and power characteristics, control options, shaft spline data, port configuration and installation dimensions.
By sharing their machine operating conditions and hydraulic system requirements, customers can obtain technical guidance on a suitable HPV series configuration.
FAQ
Q1. Can I have a sample order for wheat harvester hydrostatic transmission ?
A: Yes, we welcome sample order to test and check quality.
Q2. What about the lead time?
10 to 15 days for samples, mass production according to MOQ
Q3. Do you have any MOQ limit for wheat harvester hydrostatic transmission ?
A: Low MOQ, 1pc for sample checking is available.
Q4. How do you ship the goods and how long does it take to arrive?
Ship by sea, it generally takes 15-20 days to arrive, and air is also optional.
Q5. How to proceed an order for wheat harvester hydrostatic transmission ?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
Q6: Do you offer guarantee for the products?
A: Yes, we offer 1 years warranty to our products.
Q7: How to deal with the faulty?
Firstly, our products are produced in strict quality control system.Secondly, we will inspect the defective pump and motor, and then respond according to the actual situation.
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