Microcomputer-controlled Vertical Universal Friction and Wear Testing Machine

MMW-1 Microcomputer-controlled Vertical Universal Friction and Wear Testing Machine

I. Equipment Introduction

This machine, under certain contact pressure, features friction forms including rolling, sliding, or a combination of both. Equipped with a stepless speed regulation system, it can operate at very low or high speeds to evaluate the friction and wear properties of materials such as metals, plastics, coatings, rubber, and ceramics. Applications include low-speed pin-on-disc (with large and small discs, single and three pins) friction testing, long-term anti-wear performance with four balls, four-ball rolling contact fatigue, ball-bronze three-piece lubrication performance, as well as tests for thrust washers, ball-on-disc, slurry wear, lip seal torque of rubber seals, and stick-slip friction behavior.

Method A                      Method B

Oil Box Temperature: 75±2℃                   75±2℃

Spindle Speed: 1200±60r/min              1200±60r/min

Test Duration: 60±1min                  60±1min

Axial Test Force: 147N (15kgf)             392N (40kgf)

Zero Sensitivity of Axial Test Force: ±1.96N (±0.2kgf)        ±1.96N (±0.2kgf)

Special Standard Steel Ball Specimen: φ12.7mm                  φ12.7mm

II. Main Technical Specifications:

1. Test Force

1.1 Working Range of Axial Test Force: 1～1000N (steplessly adjustable)

1.2 Relative Error of Test Force Indication: ±1%

1.3 Zero Sensitivity of Test Force Indication: ±1.5N

1.4 Automatic Loading Rate of Test Force: 400N/min

1.5 Long-term Automatic Holding Relative Error of Test Force: ±1%

2. Friction Torque

2.1 Maximum Measurable 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. Stepless Speed Range of Spindle

3.1 Single-stage Stepless Speed System: 5-2000r/min

3.2 Spindle Speed Error: ±1%

4. Test Media: Oil, water, slurry, abrasives, etc.

5. Heating System of Testing Machine

5.1 Heater Working Range: Room temperature～200℃ (260℃)

5.2 Disc Heating Plate: φ65, 220V, 250W

5.3 Sleeve Heater: φ68×44, 220V, 300W

5.4 φ3 Dual-output Platinum Resistance Thermometer: R_O=100±0.1Ω (one long and one short set)

5.5 Temperature Control Accuracy: ±(0.3+0.005t), where "t" is the absolute test temperature

6. Taper of Testing Machine Spindle: 1:7

7. Maximum Distance Between Spindle and Lower Auxiliary Disc: ＞75mm

8. 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 Testing Machine: 10s～9999min

10. Speed (Cycle) Display and Control Range of Testing Machine: (1～99)×10⁵

11. Maximum Output Torque of Main Motor: 5N.m

12. Overall Dimensions (L×W×H): 860×740×1560mm

13. Net Weight: 650kg

Tag: MMW-1 Microcomputer-controlled Vertical Universal Friction and Wear Testing Machine