4000 lb,10,000 lb, Spur Gear, Hand Winch, Thern

4000 lb & 10,000 lb Spur Gear Hand Winch From Thern

1 - 877 - 487 - 7880

Machine Cut Spur Gears for accurate and long lasting service.

Automatic Brake Models provide positive load control for lifting and lowering operations. Brake models have B suffix.

Corrosion Resistant durable paint finish combined with zinc and iridescent dichromate plating protects against corrosion.

Bronze and radial ball bearings provide smooth and efficient operation.

 


Model M492B

4000 lb & 10,000 lb
Spur Gear Hand Winches


Model M492-12


Model M452B-A

 Large Diameter Drums minimize wear to extend wire rope life.

Spring Loaded Ratchets for positive engagement with gear.

Steel Gear Covers protect gears and help prevent injuries.

Handles Adjust in length to change force required to move load.

Wire Rope Assemblies sold separately.




Model M452B


Spur Gear Hand Winches
Up to 10,000 lb capacity

Model M452B
for lifting or pulling up to 4000 lbs. Includes brake.

Owners Manual
Model M452B-A
narrow drum model, for lifting or pulling up to 4000 lbs. Includes Brake

Owners Manual
Model M492B
for lifting or pulling up to 10,000 lbs. Includes brake

Owners Manual
Model M492-12
wide drum model for pulling only up to 10,000 lbs. Brake available for lifting.


Owners Manual
Model M452 with HW452
hand wheel model for pulling only up to 4,000 lbs. 10,000 lb model available.

Owners Manual



Performance Characteristics

load rating (lb)
drum capacity1
model
number		 description 1st
layer		 mid
drum		 full
drum		 wire
rope
diameter		 1st
layer		 mid
drum		 full
drum		 single
gear
ratio

double
gear
ratio

force
to lift
1000 lb2		 approx.
ship
wt. (lb)
M452 marine duty
(for pulling only)		 4000 3200 2400 1/4
5/16
3/8		 23
18
14		 130
89
64		 300
200
140

4.42:1

19.54:1

10
(double gear)

81
M452B marine duty with brake (for lifting) 4000 3200 2400 1/4
5/16
3/8		 23
18
14		 130
89
64		 300
200
140		 -
19.54:1

10
(double gear)

89
M452B-A marine duty with brake (for lifting)
4 in. drum width		 4000 3200 2400 1/4
5/16
3/8		 13
9
7		 83
56
40		 190
120
89		 -
19.54:1

10
(double gear)

75
M492 marine duty
(for pulling only)		 10000 7000 5000 5/16
3/8
1/2		 27
21
15		 240
170
100		 540
390
230		 5.00:1
25.00:1

8
(double gear)

166
M492B marine duty with brake
(for lifting)		 10000 7000 5000 5/16
3/8
1/2		 27
21
15		 240
170
100		 540
390
230		 -
25.00:1

8
(double gear)

173
M492-12 marine duty
(for pulling only)
12 in. drum width		 10000 7000 5000 5/16
3/8
1/2		 46
37
27		 380
270
160		 850
610
360		 5.00:1
25.00:1

8
(double gear)

183
M492B-12 marine duty with brake (for lifting)
12 in. drum width		 10000 7000 5000 5/16
3/8
1/2		 46
37
27 		380
270
160		 850
610
360		 -
25.00:1

8
(double gear)

190
1Actual drum capacities may be 25-30% less, due to non-uniform winding. Tension in the wire rope will also affect drum capacity.
2Approximate handle force required to lift 1000 lb with an empty drum, and maximum handle length.


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