
14 1/2" Closed Mouth Trailer-Mounted Bucking Unit
Section Contents
7.16
Technical Manual
BEST BY FARR
TM
PIPE RANGE PIPE RANGE PIPE RANGE
RINGS
REQUIRED
NUMBER OF
JAWS
USE DIE SIZE 5
TO 4
USE DIE SIZE
4-1/2 TO 3-1/2
USE DIE SIZE
3-1/2 TO 2-7/8
MASTER RING
BLUE PLATES
Standard Jaw
12
OD
13-5/8 to 14-5/8
OD
13-1/8 to 14-1/8
OD
12-1/2 to 13-1/8
Long Jaw
6
OD
12 to 12-1/2
OD
11-5/8 to 12-1/8
OD
11 to 11-1/2
RING A
RED PLATES
Standard Jaw
10
OD
11-1/2 to 12-1/2
OD
11 to 12
OD
10-3/8 to 11
Long Jaw
5
OD
10-1/4 to 11-1/2
OD
9-3/8 to 10
OD
8-7/8 to 9-1/2
RING B
YELLOW PLATES
Standard Jaw
8
OD
9-3/8 to 10-3/8
OD
8-7/8 to 9-7/8
OD
8-1/4 to 8-7/8
Long Jaw
4
OD
7-3/8 to 8-1/8
OD
7-1/8 to 8
OD
6-1/2 to 7-3/8
RING C
GREEN PLATES
Standard Jaw
7
OD
7-3/8 to 8-3/8
OD
6-7/8 to 7-7/8
OD
6-1/4 to 6-7/8
Long Jaw
7
OD
5-3/8 to 6-1/4
OD
5 to 5-7/8
OD
5-3/8 to 4-5/8
EACH PIPE SIZE REQUIRES A RING AND 5 PLATES FOR THE TONG AND 4
PLATES FOR THE BACKUP, EXCEPT FOR THE 13-5/8 AND ABOVE, WHICH
USES THE MASTER RING IN THE TONG AND BACKUP WITH APPLICABLE DIES
Ranges For Pipe Size Combinations
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