PV22 MF22 Combine Harvester Hydraulic Drive System Higher Efficiency
Product Summary
Highland Combine harvester hydraulic drive system higher efficiency 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 ...
Product Custom Attributes
combine harvester hydraulic drive system
,hydraulic drive system higher efficiency
Basic Properties
Trading Properties
Product Description
Highland Combine harvester hydraulic drive system higher efficiency
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 Agricultural machinery hydraulic drive system from Highland of China, we can provide agricultural machinery hydraulic drive system with high quality, high-performance parameters. Pump is the variable one that is with Charge Pump, and the motor the quantitative, or variable one with valve assembly. The control way of variable displacement pump and motor can be manual or hydraulic operated, and can simply control speed, direction and power of the output shaft of hydraulic motor.
Highland Hydraulic pumps could produce hydraulic through tubing to the hydraulic motor, hydraulic motor to convert hydraulic energy into kinetic energy and through reducer slow down and increase torque, transfer to the mixing tank, by adjusting the servo controller angle of hydraulic pump so as to realize reversing and speed of the drum, in order to realize concrete loading, mixing, stirring, discharging and other operations.
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:
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.
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
Factory Production & Inspection Evidence
Shandong Highland Hydraulic Seiko Co., Ltd. manufactures these drive systems and records each motor unit so that it can be traced through production.
- Manufacturer: Shandong Highland Hydraulic Seiko Co., Ltd. (brand: Highland)
- Documented motor: MF23-23 closed-loop axial piston motor
- Documented Component No.: 02603210203001
- Documented project quantity: 100 units
- Closed-loop motor tested and inspection-recorded before release
Records of this kind support the traceability of each unit through production and inspection.
Factory Performance Testing
Before dispatch, the closed-loop hydraulic motor is run on a factory test bench so that speed, pressure, flow, torque and efficiency are measured under load.
The supplied Closed-Loop Hydraulic Motor Test Report documents the MF23-23 motor (Component No. 02603210203001), tested on 2026/3/21 at a temperature of 25.7 °C with a power recovery ratio of 20%. Rated displacement is 89 mL/rev, maximum continuous speed 3000 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.
Testing is performed before release, not after delivery.
Recorded Test Data
Measured values taken from the closed-loop test bench are reproduced below for reference.
| Speed (r/min) | Pressure (MPa) | Flow (L/min) | Displacement (mL/rev) | Torque (N·m) | Input Power (kW) | Output Power (kW) | Overall Efficiency (%) | Volumetric Efficiency (%) |
|---|---|---|---|---|---|---|---|---|
| 1230 | 5.4 | 110.8 | 90.1 | 83 | 10.7 | 10 | 93.3 | 100 |
| 1227 | 18.1 | 108.6 | 90.1 | 281 | 36.1 | 32.8 | 90.7 | 98.3 |
| 1225 | 30.1 | 105.7 | 90.1 | 459 | 58.9 | 53 | 90.1 | 95.8 |
| 1264 | 5.7 | 113.5 | 89.8 | 72 | 9.5 | 10.8 | 113.1 | 100 |
| 1262 | 16.8 | 111 | 89.8 | 241 | 31.9 | 31.1 | 97.6 | 98 |
| 1259 | 30 | 108.3 | 89.8 | 441 | 58.1 | 54.2 | 93.1 | 95.8 |
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; some recorded overall-efficiency figures exceed 100% according to the test bench's calculation convention.
Quality Control & Inspection
Quality control is maintained through product identification, performance records and interface verification.
- 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
An engineering drawing for the MF23-23 defines the hydraulic interfaces and shaft details of the motor.
- 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: 23-tooth involute spline, 16/32 radial pitch, 30° pressure angle, 36.5 mm dividing circle diameter
- Conical shaft lock nut: 1-20 UNEF-2B
- Rotation direction: CW / CCW
- Displacement marked on drawing: 89 mL/rev
Drawing technical requirement: minimum speed 500 r/min, maximum speed 2600 r/min, rated working pressure 30 MPa. Interface dimensions should be confirmed against the engineering drawing before installation.
Application / Project Evidence
A documented project from the manufacturer's records is summarised below.
- Project: Variable Piston Pump for Belarus
- Model: MF23-23
- Quantity: 100 units
- Client: Belarus
- Application: Rye 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
The following technical documents are available on request.
| 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 | 89 mL/rev (max) |
| Max continuous speed | 3000 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 | 430 N·m |
| Maximum output torque | 502 N·m |
| Maximum power | 157 kW |
| Allowable shell temperature | -40 to 50 °C |
| Max oil tank temperature | 80 °C |
| Weight (MF series motor) | 49 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.
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