Leading the lifting & rigging industry
Certex Logo

Categories

Thern Series 477 Helical/Worm Gear Power Winches

Thern Series 477 Helical/Worm Gear Power Winches

Helical/worm gearing delivers dependable operation. Cast aluminum construction provides lightweight strength and durability. An enclosed oil bath provides continuous lubrication. An internal mechanical brake provides positive load control for lifting and lowering operations. Ball bearings deliver smooth operation. Wire rope sold separately.


EMAIL PAGE

EMAIL PAGE


VIEW IN CATALOG

VIEW IN CATALOG


WARNINGS & CAUTIONS

WARNINGS & CAUTIONS

CERTEX Cat. Ref. No. Thern Model Description Load Rating 1st Layer Load Rating Full Drum Wire Rope Diameter 1st Layer Line Speed Full Drum Capacity Approx. Ship. Wt.
CX11-0642 4771 115/1/60 VAC, with 6 ft pendant 2000 lb. 1200 lb. 5/16 in. 13 fpm 90 ft. 87 lb.
CX11-0643 4771DC 12 VDC, with 10 ft pendant 2000 lb. 1200 lb. 5/16 in. 13 fpm 90 ft. 105 lb.
CX11-0644 4771PN pneumatic 80 cfm at 100 psi 2000 lb. 1200 lb. 5/16 in. 13 fpm 90 ft. 74 lb.
CX11-0645 4771HY hydraulic 4 gpm at 1000 psi 2000 lb. 1200 lb. 5/16 in. 13 fpm 90 ft. 72 lb.

Actual drum capacities may be 25-30% less, due to nonuniform winding.
Tension in the wire rope will also affect drum capacity.
For all models except 4771, line speed is based on rated load, actual speed will vary with load weight and power supply. For Model 4771PN, ratings are at 100 psi. For Model 4771HY, ratings are at 1000 psi. Controls and hoses sold separately

WARNING: Prop 65: Products supplied by CERTEX USA may expose you to chemicals including Nickel, which is known to the State of California to cause cancer. For more information, visit to www.P65Warnings.ca.gov.

Related Products

Caldwell Heavy-Duty Sheet Lifters Model 60

Caldwell Heavy-Duty Sheet Lifters Model 60

When headroom is an issue, Model 60 is ready. Its compact design gives you options when vertical space is not available. Couple that with its ability to handle bundles, sheets, or plates, and you’ve got a solid option for a wide variety of applications. Product...

Caldwell Single Fixed Fork Hook Model 5

Caldwell Single Fixed Fork Hook Model 5

Caldwell Fork Lift Beams are specifically designed to make fork lifts more versatile by providing positive handling of loads otherwise impractical for fork lifts. Product Features: Easy attachment, no special wrenches or tools needed Strong, sturdy, all-welded...

Caldwell Fixed Spreader Beam Model 30

Caldwell Fixed Spreader Beam Model 30

Not all picks require low-headroom beams. And sometimes you need the extra stability of a chain or wire rope rigging. In those situations, the Model 30 Fixed Spreader Beam is the right choice. Product Features: Ideal where headroom is not limited Adds stability to...

Caldwell Radio Controlled Release Unit Model RR-R

Caldwell Radio Controlled Release Unit Model RR-R

Product Features: Allows rigging to be released from a safe distance with the push of a button Designed for rugged outdoor use Easy to use - simply rig, lift, set, and release LOCK & CAPTURE feature engages with very little load weight Includes two 12 VDC .8 Amp...