Thern M4312 Series Spur Winches at Southern Tool Catalog

2000 lb
Spur Gear Hand Winches

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 PB suffix.

Corrosion Resistant trivalent zinc plated finish protects against corrosion in harsh environments

Quick Disconnect Anchor for quickly attaching or removing wire rope equipped with a swagged ball fitting.

Bronze and radial ball bearings provide smooth and efficient operation.

Large Diameter Drums minimize wear to extend wire rope life.

Gear Covers protect gears and help prevent injuries.

Stainless Steel Models Available for harsh environments, see models with SS suffix. Stainless steel models are electro-polished for added corrosion resistance.

Wire Rope Assemblies sold separately.

Model M4311PB
Model M4411

***Important: It is the owner's or operator's responsibility to determine the suitability of the equipment to its intended use. Study all applicable codes, manuals, and regulations. Be sure to read the Owner's Manual supplied with the equipment before operating it.

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)
M4312	marine duty for pulling only	2000	1600	1200	3/16 1/4 5/16	8 5 4	48 26 17	110 58 39	3.83:1	22 lb (double gear)	22 lb	23
M4312PB	marine duty with brake (for lifting)	2000	1600	1200	3/16 1/4 5/16	8 5 4	48 26 17	110 58 39	-	14.7:1	22 (double gear)	28
M4412	marine duty for pulling only	2000	1600	1200	3/16 1/4 5/16	18 14 11	97 52 35	210 120 77	3.83:1	14.7:1	22 lb (double gear)	25
M4412PB	marine duty with brake (for lifting)	2000	1600	1200	3/16 1/4 5/16	18 14 11	97 52 35	210 120 77	-	14.7:1	22 (double gear)	30
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.