Lightweight & Rugged Puller
5,000 lb. Pulling Capacity


  • Line pull & rope speed independent of the amount of rope stored on drum.
  • Rope entry at a fixed point for better anchorage.
  • Even, constant pulling force.
  • Tension Dynamometer.



About the UD-50 Underground Puller
The S+R™ Under Dawg® underground puller (Model UD-50) is unquestionably one of the most cost-effective underground pullers in the world, and the reasons are obvious!  Compact, yet rugged, this self-contained machine does big jobs yet its small size lends itself to small ones as well.

This small, lightweight, highly efficient and reliable machine utilizes bullwheels shaped to fit the rope diameter for longer life of the pulling line. These multi-groove, open side bullwheels provide smooth, constant tension on the cable during the pulling operation. The UD-50 is self-contained, utilizing an 10 H.P. gasoline engine, and has a 5,000 lb. pulling capacity.

The UD-50 is fitted with a dynamometer and adjustable overload cut-off for protection against over-tensioning the cable. This easy to operate, economical power unit is mounted on a rugged frame constructed of welded steel tubing and is available skid-mounted or mounted on a trailer for easy transporting to and from the job site by a light weight truck.

The Sherman + Reilly™ UD-50 underground puller is ideal for installing telecommunication cables, including optical fiber cables, inner-duct, and slip-lining, etc.

For More Information about the UD-50 Underground Puller contact your local Sherman + Reilly Representative or call Sherman + Reilly directly at 1-800-251-7780.

Engine: 8 HP Gasoline
Fuel Capacity: 1.25 Gallon
Pulling Rope: 3/8″ dia. Steel Cable
Reel Capacity: 1,500 ft. (3/8 in. dia.)
Skid Frame Construction: Steel tubing, continuous-weld
Instrumentation: Dial-type Dynamometer w/Load Limiting Device
Wheel Configuration & Tires: 14 x 5.5 Drop Center; ST205-75R14BC
Brakes, trailer: Electric, Standard; Hydraulic Surge, Opt’l
Parking Brake, trailer: Manual
Electrical System: 12 V
Front/Nose Jack: Screw Type with Wheel
Rear Jacks: Screw Type with Shoe
Tool Box: Steel
Trailer Hitch: Pintle Eye
Width, overall, approx.: 63″
Length, overall, approx.: 91″
Frame Construction, trailer: Steel Tubing
Height, approx.: 48″
Weight, approx.: 1,200 lbs.

Please refer to the Product Sheet in the Publications for this product.