Enhancing Operational Efficiency With Hydraulic Drive System For Corn Harvester
Product Summary
Highland Enhancing Operational Efficiency with Hydraulic Drive Systems: An In-depth Guide Quick Detail: · Cast iron housing · Hydraulic components · Power components of hydraulic systems · Higher efficiency · Factory address CHINA DEZHOU · Simple layout · System Solutions · Application Hydraulic ...
Product Custom Attributes
Hydraulic Drive System for Corn harvester
,Enhancing Efficiency Hydraulic Drive System
,PV22+MF22 Hydraulic Drive System
Basic Properties
Trading Properties
Product Description
Highland Enhancing Operational Efficiency with Hydraulic Drive Systems: An In-depth Guide
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 System is a method of transmitting power by using pressurized hydraulic fluid. In this system, a pump powered by an engine or electric motor pressurizes hydraulic fluid, which is then used to operate actuators such as hydraulic motors or cylinders. These actuators convert the hydraulic energy back into mechanical energy, producing motion or force. Hydraulic Drive Systems are renowned for their ability to deliver high amounts of power and are widely used in applications such as construction machinery, industrial processes, and heavy-duty vehicles.
Specifications:
Highland PV+MF Series Hydraulic Drive System 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:
System Monitoring and Maintenance: A Hydraulic Drive System is a complex setup that requires regular monitoring and maintenance to ensure optimal performance and longevity. This includes keeping an eye on the hydraulic fluid levels and its condition, as contaminated or degraded fluid can affect the performance of the system. Regular inspections should also be carried out to detect any potential leaks or mechanical issues in the system. Moreover, it's crucial to follow the manufacturer's recommended maintenance schedule and guidelines for the specific components in the system. Ignoring routine maintenance can lead to decreased efficiency, increased wear and tear, and potential system failure.
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
As the manufacturer, Shandong Highland Hydraulic Seiko Co., Ltd. maintains production and inspection records for the closed-loop axial piston motor used in these drive systems.
- 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
Evidence type: factory production and product-identification record.
Factory Performance Testing
The factory validates the closed-loop motor on a test bench, measuring speed, pressure, flow, displacement, torque, and both overall and volumetric efficiency.
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.
The bench reproduces loaded operating conditions for the motor.
Recorded Test Data
The closed-loop report logs the motor's measured values; selected factory-recorded points are reproduced below.
| 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
Final quality control is based on documented identification, testing and dimensional 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
The supplied MF22-21 engineering drawing documents the mounting, output shaft, hydraulic ports and rotation direction of the closed-loop axial piston 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: 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 manufacturer's project records document closed-loop axial piston motor supply in the following application.
- 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
Technical documents available for the closed-loop axial piston motor include the following.
| 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.
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