MMW-1 Microcomputer Screen Display Vertical Universal Friction and Wear Testing MachineMainly in the form of sliding, rolling, and composite friction, different friction pair forms are selected at lower contact pressures to evaluate the long-term wear resistance of lubricating oil and grease, as well as the friction and wear performance of metal materials. This machine is equipped with three types of friction pairs: four ball, pin plate, and thrust ring. According to user needs, various forms of friction pairs such as ball plate, ball three plate, pin three column, simulated cam, and gear can be provided. This machine can measure friction torque, calculate friction coefficient, connect to a computer, and record temperature time curve and friction coefficient time curve. The machine is equipped with a high-precision measuring device that can measure the size of friction pair wear spots, or achieve computer screen display, measurement, and recording of friction pair wear spots.Other forms of friction pairs can also be developed according to the installation interface size of the friction pair of the machine at the request of the user or by the user themselves for basic research on friction and wear, as well as research on test methods. This machine is suitable for tribology research and other professional fields, and has a wide range of applications in departments such as petrochemicals, colleges, and research institutes.

1. The machine consists of a base and frame, a spindle and its AC servo drive system, a friction pair disc and sample clamping device, a closed-loop servo application system for test force, electronic measurement systems for various test parameters, a computer and data acquisition board, and dedicated control software.
2. The drive of the spindle consists of an imported AC servo motor and its control system. The system can achieve constant torque output throughout its entire speed range and can work smoothly at extremely low speeds, thus achieving stepless speed regulation of the spindle over a wide range and meeting the needs of different researchers.
3. The application of experimental force adopts a closed-loop servo system, and its size is set by the operator on the computer interface. The application is smooth and reliable, thus avoiding the influence of experimental force fluctuations on the test results. The system is implemented by a servo motor pushing a spring through a reducer. In order to reduce the friction during the up and down movement of the test disk and improve the accuracy of friction (torque) measurement, a linear bearing is used for guidance and supported by a deep groove ball bearing;
4. The spindle speed, rotation speed (test cycle), test force, friction torque (friction coefficient, friction force), friction pair temperature, test time and other parameters of the machine are all controlled by a computer. Real time test data is collected and corresponding test curves can be drawn. The data can be stored, retrieved, printed and output arbitrarily, and is true and reliable without human influence.

1. Experimental force

1.1 Axial test force working range:10N～1000N(infinitely adjustable)

1.2 Relative error of test force indication: ±1%

1.3 Zero sensitivity of test force indication: ±1.5N

1.4 Test force automatic loading rate:400N/min

1.5 Test force automatically maintains the relative error of the displayed value for a long time: ±1%

2. Friction torque

2.1 Determination of maximum friction torque:2.5N. m

2.2 Relative error of friction torque indication: ±2%

2.3 Friction Load Sensor:50N

2.4 Friction arm distance:50mm

3. Spindle continuously variable speed range

3.1 Single stage continuously variable transmission system:5-2000r/min

3.2 Spindle speed error: ±1%

4. Test medium:Oil, water, mud, abrasives, etc.

5. Heating system of testing machine

5.1 Working range of heater: Room temperature~200℃（260℃）

5.2 Disc heating plate: φ65，220V，250W

5.3 Set heater: φ68×44，220V，300W

5.4φ3Dual group output platinum thermistor:RO=100±0.1Ω (one group for each length)

5.5 Temperature control accuracy: ±（0.3+0.005t）In the formula“t”Absolute value of experimental temperature

6. Test machine spindle taper:1：7

7. Maximum distance between the main spindle of the testing machine and the lower auxiliary disc:75mm

8. Main spindle control of testing machine

8.1 Manual Control

8.2 Time Control

8.3 Speed (cycle) control

8.4 Friction torque control

9. Time display and control range of the testing machine:10s～9999min

10. Display and control range of testing machine speed (cycle):（1～99）×105

11. Maximum torque output of the main motor of the testing machine:5N. m

12. Dimensions of the testing machineL×B×H>:860×740×1560mm

13. Net weight of testing machine:650kg

14. Main accessories and special accessories of the testing machine

14.1 Measurement microscope magnification:25X 100X

14.2 Wear and Wear Spot Measurement Solid Microscope (including Photography System)
The above parameters are for reference only. The parameters are subject to the manufacturer's technical solution. Please consult by phone for details.