GENERAL DESCRIPTION
The Westco Models 4500 Hydraulic Tubing Tongs are fast, safe, and accurate tongs for making up and
breaking out 1.315” to 4.75” (Model 4500) O.D. tubing. Hydraulic power is directed to a manually controlled
throttle valve and hydraulic motor unit. Fluid power input is converted to the rotary mechanical output,
which drives the tong’s gear train. The simple, but rugged gear train consists of a planetary type gearbox
mounted directly beneath the motor, and a gear reduction system, which provides the extra torque capacity.
The tong is suspended in the derrick or mast by a wire line and swung onto the tubing. Tong jaws grip
automatically and the safety guard door closes. Operate the throttle in the forward position, and the tubing is
automatically made up to the required specifications as indicated on the torque indicator gauge.
SPECIFICATIONS
TONG PERFORMANCE CHARACTERISTICS:
Maximum RPM (40 GPM, 151.4LPM, Hi Gear) 105
Running RPM (34 GPM, 128.7 LPM, Hi Gear) 93
Make-Up Torque (ft. – lbs.) 5,440 Ft. Lbs.
(Low Gear, 2000 PSI, 140.6 Kf/sp.cm) 760.7 Kg-m
TONG EQUIPMENT:
FOUR-WAY CONTROL VALVE
Manual Control
For direction of tong rotation
HYDRAULIC MOTOR
Gear Type
Fixed displacement, 2” gears (5.1cm) 2500 PSI
Maximum working pressure (175.8 Kg/sq cm)
GEAR BOX
Planetary Type, 5-1/2” to 1” reduction
HIGH PRESSURE HYDRAULIC HOSE
1” (2.54 cm)
2250 PSI (148.2 Kg/sq. cm) working pressure
9000 PSI burst (632.8 Kg/sq cm)
LOW PRESSURE HYDRAULIC HOSE
1” (2.54 cm) I.D. x 50’
(15.2 cm) 200 PSI (14.1Kg/sq cm working pressure
800 PSI burst (56.2 Kg/sq cm)
HYDRAULIC HOSE COUPLINGS
Self-Sealing Quick Disconnect Type
TONG WEIGHT
560 lbs (254 Kg)
*These specifications comprise the Westco 4500 Tongs.
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