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MHD56037 - Edition 5 7
Description of Operation
FA5 winches are air powered, planetary geared units designed for
lifting and pulling applications. FA5 winches are available with
either an internal automatic disc brake, a manual or automatic
band brake, or a combination of both.
The output from an externally mounted piston air motor is
transmitted through a coupling and shaft to the planetary
reduction gear assembly.
The output from planetary reduction gear assembly is connected
to the wire rope drum through the output shaft.
FA5 winches can be provided with an optional disc brake
assembly consisting of friction plates splined to a hub which in
turn is connected to the drive shaft from the air motor. Brake
friction plates are clamped to the drum shaft through a spring
applied piston. The brake remains applied until the winch control
valve is operated and winch payout or haul-in occurs. Air is
introduced into the brake piston chamber, which is formed
between brake piston and brake housing, causing the brake piston
to react, compressing brake springs and releasing friction plates
allowing motor shaft to rotate. A power failure or sudden loss of
air will immediately cause the spring applied brake to engage.
The drum band brake operates by applying a friction force
between drum brake band and winch drum. The manual brake
requires an operator to engage and disengage brake using a lever
located on top of brake band. The automatic drum band brake
operation is similar to disc brake operation; they are both fully
disengaged in the haul-in and payout direction.
General Specifications:
Model
FA5 FA5T
Air System
Rated Operating Pressure 90 psig (6.3 bar)
Air Consumption
(at rated pressure and load)
700 scfm 20 cu.m/min. 700 scfm 20 cu.m/min.
Rated Performance
(at rated pressure / volume)
Full Drum Line Pull 11,000 lbs 4,490 kgs 8,400 lbs 3,810 kgs
Mid Drum Line Speed 65 fpm 20 m/min. 80 fpm 24 m/min.
Max Stall Pull - 1st Layer 24,000 lbs 10,886 kgs 24,000 lbs 10,886 kgs
FA5-24MX1 Ship Weight 1,920 lbs 873 kgs - - - - - -
FA5T-24MX1 Ship Weight - - - - - - 2,115 lbs 961 kgs
Air Motor Pipe Inlet Size 1.25 inch 32 mm 1.25 inch 32 mm
Minimum Air System Hose Size 1.5 inch 38 mm 1.5 inch 38 mm
Drum Barrel Diameter 15 inches 381 mm 15 inches 381mm
Drum Flange Diameter 27.25 inches 692 mm 35.25 inches 895 mm
* Drum Wire Rope
Storage Capacity
(feet / metres)
Drum Length (inches)
Wire Rope Diameter
0.625 inch 16 mm
0.625 inch (16 mm) diameter
wire rope not recommended for
use on FA5T winches.
12 874 ft 266 m
16 1181 ft 360 m
24 (Standard) 1795 ft 547 m
30 2256 ft 688 m
0.75 inch 18 mm 0.75 inch 18 mm
12 550 ft 168 m 1240 ft 378 m
16 746 ft 227 m 1681 ft 512 m
24 (Standard) 1138 ft 347 m 2564 ft 782 m
30 1431 ft 436 m 3225 ft 983 m
36 (Tall flange only) - - - - - - 3887 ft 1185 m
0.875 inch 20 mm 0.875 inch 20 mm
12 400 ft 122 m 886 ft 270 m
16 544 ft 166 m 1204 ft 367 m
24 (Standard) 832 ft 254 m 1841 ft 561 m
30 1047 ft 319 m 2318 ft 706 m
36 (Tall flange only) - - - - - - 2796 ft 852 m
* Wire rope storage capacity based on wire rope top layer located a minimum of 1/2 inch (13 mm) below drum flange and meets ASME
B30.7. The wire rope storage capacities listed may vary from figures stated elsewhere.