Caterpillar Performance Handbook, January 2017, SEBD0351-47

Roof Support Carriers ● Tractive Effort vs. Speed — Loaded

Longwall

SH640/SH640B TRACTIVE EFFORT vs. SPEED — LOADED

kN lbf

300

67,442

250

56,202

200

44,961

1st 2nd 3rd 4th

150

33,721

100

22,480

50

11,240

TRACTIVE EFFORT

0

0

0 0

3.10

6.21

9.32

12.43

15.53

mph km/h

5

10

15

20

25

SPEED

SH660/SH660B TRACTIVE EFFORT vs. SPEED — LOADED

78,750 350 90,000 400 kN lbf

50 100 150 200 250 300

11,250 22,500 33,750 45,000 56,250 67,500

1st 2nd 3rd 4th

TRACTIVE EFFORT

0

0

0 0

3.10

6.21

9.32

12.43

15.53

mph km/h

5

10

15

20

25

SPEED

20-118 Edition 47