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
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