Model 4771 helical/worm gear power winches lift or pull up to 2,000 lbs.

At a Glance
Specifications
winch models
Electronic Controls
Wire Rope

SERIES 477 DURA-HOIST HELICAL/ WORM GEAR

Up to 2,000 lb Capacity

Anchor your operation with the reliability of Dura-Hoist. With solid construction, internal lubrication and pendant control, the only thing you wonât need is worry

QUICK FACTS

Machine cut gears
Enclosed oil bath
Internal mechanical brake
Cast aluminum
Ball bearings
Large diameter drums
Mounting options
2-Year Limited Warranty

SERIES MODELS

4771

Features:

115 / 1 / 60 Electric Motor - Standard 115-volt single-phase motor includes power cord with grounded plug and a momentary contact-type push button pendant control on a control cord.
Modual Design - Easy product customization and quick lead times.
Cast Aluminum Construction - Rugged work site durability in a lightweight package.
Machine Cut Worm Gears - Bronze gearing provides accurate, high efficiency operation and long lasting service.
Enclosed Oil Bath - Gears operate with continuous lubrication to minimize wear. Oil seals keep oil in and dirt out.
Automatic Brake - Internal mechanical brake provides positive load control for lifting and lowering operations.
Bronze Ball Bearings - Bearings are self-aligning and provide smooth and efficient operation.
Large Diameter Drums - Minimize wear to extend wire rope life.
Pressure Plate - Applies pressure to drum and wire rope to help maintain uniform winding. Not available on clutch models.
Dual Funtion Cable Anchor - Drum is equipped with both a standard set screw slot and keyhole slot on drum for quick disconnect with 3/8 inch swaged ball ends.
Lifting Handles - Handles provide for convenient work site lifting and positioning.
Corrosion Resistant - Durable paint finish combined with trivalent zinc plating protects against corrosion in harsh environments.
Two Year Warranty - Industry-leading two-year limited warranty on all our products.

			Load Rating								Line Speed				Drum Capacity ¹
Model No.	Motor Description	Motor HP	1st Layer		Mid Drum		Full Drum		Wire Rope Dia.		1st Layer		Full Drum		1st Layer		Mid Drum		Full Drum		Approx. Ship Weight
			(lb)	(kg)	(lb)	(kg)	(lb)	(kg)	(in)	(mm)	(fpm)	(mpm)	(fpm)	(mpm)	(ft)	(m)	(ft)	(m)	(ft)	(m)	(lb)	(kg)
4771 ²	115/1/60 VAC – 6 ft pendant	1.2	2000	907.1	1500	680.3	1200	544.3	5/16	7.9	13	3.9	22	6.7	13	3.9	40	12.1	90	27.4	88	26.8
4771AC-1PH	115/1/60 VAC – less controls	1.2	2000	907.1	1500	680.3	1200	544.3	5/16	7.9	13	3.9	22	6.7	13	3.9	40	12.1	90	27.4	87	39.4
4771AC-1PH2 ³	115/230/1/60 VAC – less controls	1.5	2000	907.1	1500	680.3	1200	544.3	5/16	7.9	13	3.9	22	6.7	13	3.9	40	12.1	90	27.4	115	42.1
4771AC-3PH ³	230/460/3/60 VAC – less controls	1.5	2000	907.1	1500	680.3	1200	544.3	5/16	7.9	13	3.9	22	6.7	13	3.9	40	12.1	90	27.4	111	50.3
4771DC ⁴	12 VDC – 10 ft pendant	1.0	2000	907.1	1500	680.3	1200	544.3	5/16	7.9	13	3.9	22	6.7	13	3.9	40	12.1	90	27.4	105	47.6
4771PN ^4,5	pneumatic – less controls	1.2	2000	907.1	1500	680.3	1200	544.3	5/16	7.9	13	3.9	22	6.7	13	3.9	40	12.1	90	27.4	70	31.7
4771HY ^4,5	hydraulic – less controls	2.3	2000	907.1	1500	680.3	1200	544.3	5/16	7.9	13	3.9	22	6.7	13	3.9	40	12.1	90	27.4	72	32.6
4777 ²	115/1/60 VAC – 6 ft pendant	1.2	2000	907.1	1500	680.3	1200	544.3	5/16	7.9	13	3.9	22	6.7	7	2.1	27	8.2	60	18.2	93	42.1
4777DC ^4,6	12 VDC – 10 ft pendant	1.0	2000	907.1	1500	680.3	1200	544.3	5/16	7.9	13	3.9	22	6.7	7	2.1	27	8.2	60	18.2	105	47.6

FF10_0910.qxp

DuraHoist Model 4771 helical/worm gear power winches lift or pull up to 2,000 lbs.
4771	2000 lb 1.2 hp 115 VAC 1 phase electric with 6 ft pendant control
4771AC-1PH	2000 lb 1.2 hp 115 VAC 1 phase electric (without controls)
4771AC-1PH2	2000 lb 1.5 hp 115/230 VAC 1 phase electric (without controls)
4771AC-3PH	2000 lb 1.5 hp 230/460 VAC 3 phase electric (without controls)
4771DC	2000 lb 1.0 hp 12 VDC electric with 10 ft pendant control
4771PN	2000 lb 1.2 hp pneumatic 80 cfm at 100 psi (without controls or hoses)
4771HY	2000 lb 2.3 hp hydraulic 4 gpm at 1000 psi (without controls or hoses)
4777	2000 lb 1.2 hp 115 VAC 1 phase electric with 6 ft pendant control drum
4777DC	2000 lb1.0 hp 12 VDC electric with 10 ft pendant control 4 drum width
477PN-CNTRL	pneumatic control valve (not mounted or plumbed, no hoses)
477PN-HS6	6 ft hoses for pneumatic controls (not plumbed)
477HY-CNTRL	hydraulic control valve (not mounted or plumbed, no hoses)
477HY-HS6	6 ft hoses for hydraulic controls (not plumbed)

* Price Includes Electric Motor - Electronic Controls are sold sepertaly where no controls are included

477 Series Manual
477 Series DuraHoist Cut Sheet
Dimensions

Motor Codes
A 115 volt 1 Phase
B 230 volt 1 Phase
D 230 volt 3 phase
E 460 volt 3 phase
All other voltages or questions
please contact sales @ 800-458-3687
Feel Free to email your us your application for a Quote

Click here to view the Electronic Controls options
to Operate Power Winches Remotely

ELECTRONIC CONTROLS
10L2A1	NEMA 1
10L2A4	NEMA 4 Ã¢â¬â watertight

PNEUMATIC & HYDRAULIC CONTROLS
477PN-CNTRL	pneumatic control valve (not mounted or plumbed, no hoses)
477PN-HS6	6 ft hoses for pneumatic controls (not plumbed)
477HY-CNTRL	hydraulic control valve (not mounted or plumbed, no hoses)
477HY-HS6	6 ft hoses for hydraulic controls (not plumbed)

FF10_0910.qxp

Click here to open the wire rope page for Order Information & Pricing
All Thern Winches and Cranes are sold Without Wire Rope

Thern Model 4771 Helical/Worm Gear Power