MMW-1 Computer controlled vertical universal friction and wear tester

Item

Method A

Method B

Test temperature

75±2℃

75±2℃

Speed of spindle

1200±60 r/min

1200±60 r/min

Testing time

60±1min

60±1min

Axial testing force

147N (15kgf)

392N (40kgf)

Axial testing force zero point inductance

±1.96N(±0.2kgf)

±1.96N(±0.2kgf)

Standard steel-ball specimen

Φ 12.7mm

Φ 12.7mm

1.Test force

1.1 Axial test force working range

1～1000N

1.2 Error of indicating value lower than 200N

not bigger than ±2N

Error of indicating value upper than 200N

not bigger than 1%

1.3 Discriminability of test force

not bigger than 1.5N

1.4 Relative error of long time auto hold indicating value

not bigger than ±1% FS

1.5 Return zero error of digital display device of test force Indicating value

not bigger than ±0.2% FS

2. Friction Moment

2.1 Measuring maximum friction moment

2.5 N. m

2.2 Relative error of friction moment indicating value

Not bigger than ±2%

2.3 Friction force weighing transducer

50N

2.4 Friction force arm distance

50mm

2.5 Discriminability of friction moment indicating value

Not bigger than 2.5 N. mm

2.6 Return zero error of digital display device of friction

Not bigger than ±2% FS

3. Range of spindle stepless speed variation

3.1 Stepless speed variation

1～2000r/min

3.2 Special deceleration system

0.05～20r/min

3.3 For over 100r/min, error of spindle speed

Not bigger than ±5r/min

For below 100r/min, error of spindle speed

Not bigger than ±1 r/min

4. Testing media

Oil, water, muddy water, abrasive material

5.heating system

5.1 Heater working range

Room temperature ～260℃

5.2 Disc type heater

Φ65, 220V, 250W

5.3 Jacketing heater

Φ70x34, 220V, 300W

5.4 Jacketing heater

Φ65, 220V, 250W

5.5 Platinum thermo resistance

1 group each (long&short)

5.6 Temperature measuring control accuracy

±2℃

6.Conicity of spindle of testing machine

1:7

7. Max. distance between spindle and lower disc

≥75mm

8. Spindle control mode

8.1 Manual control

8.2 Time control

8.3 Revolution control

8.4 Friction moment control

9. Time display & control range

0s～9999min

10. Revolution display & control range

0～9999999

11. Output maximum moment of main motor

4.8N. m

12. Overall dimension (L * W * H )

600x682x1560mm

13. Net weight

About 450 kg