Shearer haulage systems — rack
|
System
|
Eicotrack
|
Ultratrac 2000
|
SuperGear Track
|
Jumbotrac
|
Ultrahaul
|
|---|---|---|---|---|---|
|
Pitch (mm)
|
126
|
147/151
|
147/151
|
147
|
126/147/151
|
|
Pull rating (kN)
|
700
|
1000
|
N/A
|
1000
|
800/1000/1200
|
|
Tooth profile
|
Near-involute
|
Involute
|
Involute
|
Involute
|
Involute/barrelled& crowned
|
|
Rack int. width (mm)
|
69
|
85
|
92
|
90
|
70/90
|
|
Construction
|
Cast
|
Forged
|
Welded
|
Welded
|
Welded
|
Shearer haulage systems — captivated chain
|
System
|
Dynatrac (RMI/H&B)
|
Rhinoride (DBT)
|
|---|---|---|
|
UTS (kN)
|
1250
|
1820
|
|
Chain size (mm)
|
34/45
|
38/42
|
|
Pitch (mm)
|
232
|
232
|
Originally published in the March 2001 edition of Australia's Longwalls.
