PV22 MF22 Combine Harvester Hydraulic Wheel Drive System 69.8 ml/r 3200 rpm
Highland PV22+MF22 Combine harvester hydraulic wheel drive system strong driving force
Quick Detail:
· Cast iron housing
· Hydraulic components
· Power components of hydraulic systems
· Higher efficiency
· Factory address CHINA DEZHOU
· Simple layout
· System Solutions
· Application Hydraulic system components
· Work fast
· Fully replace imported products
· Patent certificate certification
· 1 year warranty
Description:
Highland Hydraulic drive systems consist of a pump that pressurizes hydraulic fluid, which is then transmitted through hoses or pipes to a hydraulic motor. The motor converts the fluid's energy into mechanical force or torque, which powers the machine.
One of the key advantages of hydraulic drive systems is their ability to generate high amounts of force and torque with relatively low power inputs. This makes them ideal for lifting heavy loads, pushing large objects, and powering other types of heavy machinery.
Highland Hydraulic drive systems also offer excellent control and precision, allowing operators to vary the speed and direction of the drive system as needed. Additionally, they are highly durable and can withstand harsh operating environments, making them perfect for use in construction equipment, agricultural machinery, and other demanding applications.
Specifications:
Highland PV+MF Series Hydraulic Pumps Motors 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:
Regular maintenance: Hydraulic drive systems require regular maintenance to operate efficiently and safely. This includes checking fluid levels, inspecting hoses and fittings for wear or damage, and replacing filters and other components as needed.
Safety features: Make sure that the hydraulic drive system has adequate safety features, such as pressure relief valves, emergency stop buttons, and warning labels or signs. These features can help prevent accidents and injuries.
Tank:
The tank level and the water present in the oil should be checked daily. If the tank must be filled with oil, filtered hydraulic oil must be used, and all water in the tank must be removed as required.
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
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Factory Production & Inspection Evidence
Every drive system is assembled by Shandong Highland Hydraulic Seiko Co., Ltd. and released only together with its production and inspection documentation.
- Manufacturer: Shandong Highland Hydraulic Seiko Co., Ltd. (brand: Highland)
- Documented motor: MF22-21 closed-loop axial piston motor
- Documented Component No.: 02603030203003
- Documented project quantity: 60 units
- Closed-loop motor tested and inspection-recorded before release
The identification system allows a delivered unit to be matched to its production and test documentation.
Factory Performance Testing
Each closed-loop motor passes a test-bench run in which speed, pressure, flow, torque, power and efficiency are logged.
The supplied Closed-Loop Hydraulic Motor Test Report documents the MF22-21 motor (Component No. 02603030203003), tested on 2026/3/3 at a temperature of 36.2 °C with a power recovery ratio of 20%. Rated displacement is 69.8 mL/rev, maximum continuous speed 3200 r/min and minimum continuous speed 500 r/min, with a rated working pressure of 35 MPa and a maximum (instantaneous) pressure of 42 MPa.
Results are recorded per unit on the closed-loop test record.
Recorded Test Data
The following points were recorded during the closed-loop test run of the documented unit.
| Speed (r/min) | Pressure (MPa) | Flow (L/min) | Displacement (mL/rev) | Torque (N·m) | Input Power (kW) | Output Power (kW) | Overall Efficiency (%) | Volumetric Efficiency (%) |
|---|---|---|---|---|---|---|---|---|
| 1294 | 5.7 | 92.6 | 71.6 | 78 | 10.6 | 8.8 | 83.2 | 100 |
| 1292 | 16.7 | 90.4 | 71.6 | 206 | 27.9 | 25.2 | 90.3 | 97.8 |
| 1288 | 31.1 | 89 | 71.6 | 377 | 50.9 | 46.1 | 90.7 | 96.6 |
| 1294 | 5.5 | 92.6 | 71.6 | 68 | 9.2 | 8.5 | 92.1 | 100 |
| 1292 | 16.3 | 90.9 | 71.6 | 197 | 26.7 | 24.7 | 92.6 | 98.3 |
| 1291 | 31 | 88.9 | 71.6 | 369 | 49.9 | 45.9 | 92.1 | 96.2 |
Charge pressure: 1.4 MPa. Values are reproduced from the original test record and should be read together with the test bench's measurement and calculation method.
Quality Control & Inspection
The quality-control process links each unit to its test record and engineering specification.
- Product model and unit identification
- Closed-loop hydraulic performance testing
- Pressure and speed verification
- Flow and displacement recording
- Torque and power measurement
- Overall and volumetric efficiency recording
- Engineering interface verification
In the supplied test record the run is signed by an operator and an auditor (Operator 003, Auditor 002). The product documentation also states that units are produced under a strict quality-control system, and that any defective pump or motor is inspected before a response is issued.
Engineering Drawing
The factory engineering drawing for the MF22-21 specifies the motor's ports, output shaft and rotation direction.
- High pressure ports A and B: 7/8-14 UNF-2B
- Leakage ports L1 / L2: 3/8-16 UNC-2B, 25 mm depth
- Measuring port M: 7/16-20 UNF-2B
- High pressure relief valves A and B: 35 MPa / 42 MPa
- Output shaft: 21-tooth involute spline, 16/32 radial pitch, 30° pressure angle, 33.34 mm dividing circle diameter
- Conical shaft lock nut: 1-20 UNEF-2B
- Rotation direction: CW / CCW
- Displacement marked on drawing: 69.8 mL/rev
Drawing technical requirement: minimum speed 500 r/min, maximum speed 2800 r/min, rated working pressure 30 MPa. Interface dimensions should be confirmed against the engineering drawing before installation.
Application / Project Evidence
The following project is recorded for the same closed-loop axial piston motor platform.
- Project: Variable Piston Pump for Kyrgyzstan
- Model: MF22-21
- Quantity: 60 units
- Client: Kyrgyzstan
- Application: Cotton harvester
- Manufacturer: Shandong Highland Hydraulic Seiko Co., Ltd.
- Drive configuration: closed-circuit hydraulic system
The project is listed as evidence of the manufacturer's delivering experience; suitability for a specific machine should be confirmed before selection.
Technical Documents
Supporting technical documentation for the motor includes the documents listed below.
| Document | Availability |
|---|---|
| Technical Data Sheet | Available |
| Closed-Loop Motor Test Report | Available |
| Engineering Drawing | Available |
| Model Selection Table | Available |
Key rated values of the documented closed axial piston motor:
| Parameter | Value |
|---|---|
| Rated displacement | 69.8 mL/rev (max) |
| Max continuous speed | 3200 r/min |
| Rated speed | 2500 r/min |
| Min continuous speed | 500 r/min |
| Rated working pressure | 35 MPa |
| Max working pressure (instantaneous) | 42 MPa |
| Continuous working pressure (ΔP) | 30 MPa |
| Continuous output torque | 334 N·m |
| Maximum output torque | 390 N·m |
| Maximum power | 131 kW |
| Allowable shell temperature | -40 to 50 °C |
| Max oil tank temperature | 80 °C |
| Weight (MF series motor) | 42 kg |
| Circuit | Closed-loop |
These documents cover displacement, speed, pressure, torque, power, temperature and weight, and confirm the motor as a closed axial piston type.
FAQ
Q1. Can I have a sample order for silage machine hydraulic drive system?
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 silage machine hydraulic drive system?
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 silage machine hydraulic drive system?
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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.