Forestry winches
Forestry winch 70 GK
Forestry winches

Forestry winch 70 GK

70 GK is a professional forestry winch with a constant pulling force of 6.8t. A thinner (lightweight) wire rope allows greater productivity and faster timber harvesting.

70 GK

About the machine

Forestry winch 70 GK with constant pulling force 6.8t enables safe work, as the winch is positioned closer to the tractor, and the pulley is fixed lower, which puts the center of gravity of the winch lower. Therefore, there is less chance for the tractor to be lifted. It has an extra large drum capacity, which allows more wound up wire rope. For easy work there are large storage places (PATENT) on the front of the winch, that the dirt from the wheels of the tractor does not get between the chain and other equipment. In order to facilitate the manipulation and stacking of logs, there is also a hydraulic hinged butt plate.


  • SMART 3in1
  • AUTO STOP function (limit switch)
  • Unwinding device
  • Convenient positioning
  • Maxi drum
  • Large storage spaces in front of winch
  • Plenty of storage area for additional equipment
  • Foldable window guard


  • Hydraulic hinged butt plate

Uniforest Connect app for higher efficiency and longer service life

Download Uniforest Connect app, connect via the Bluetooth and get to know your winch better. Inspect basic machine diagnostic data and respond with appropriate action for safe and efficient log handling, as well as long service life of your forestry winch.

Get ready for Industry 4.0 with Uniforest Connect app
Package with the TERRA FA5-D1P UNI

Package with the TERRA FA5-D1P UNI

Continuous innovative development of the ergonomics, safety and efficiency of our forestry machines is our promise to you. Thus, forestry winches and the Terra FA5-D1P UNI remote controller are available in a package deal. More about the Terra FA5-D1P UNI remote control package.

SMART 3in1
SMART 3in1

(1) When pulling logs with a tractor, you may encounter some obstacles on the road (hill, roots etc.). If the tractor is not able to overcome these obstacles, the unwinding function can be switched into the mode without the assistance of the unwinding device and you can continue driving with a taught wire rope between the winch and the load. (2) The unwinding device can be turned on and off without delay (the standard model has a 1.5-sec. delay). (3) The SMART 3in1 function ensures additional tension of the wire rope between the unwinding pulley and drum.

This function is only available with the remote controls Teleradio, Terra funk and manual console.

Unwinding device and AUTO STOP
Unwinding device and AUTO STOP

To make the wire rope unwinding easier you can choose a winch with an integrated unwinding device. This type of winch also guarantees a constant tension of the wire rope between the unwinding pulley and the drum, thus preventing damage to the drum or pulley and enabling a longer service life.

AUTO STOP function (limit switch) automatically stops the function of winding the wire rope on the drum. This function prevents mechanical damages of the unwinding device, entanglement and wire rope damages.


The sensor measuring pulling force of the winch is directly installed on the pulling rope to enable precise measurement of the force on the pulling rope. The measured pulling rope force is regulated with the clutch.

Active Force Control

Active Force Control

Active Force Control is a special pulling force measurement and regulation solution. The pulling force is measured directly on the wire rope and is electronically regulated. Thus, the pulling force does not depend on the wear of the clutch, temperature and humidity, the preload of the wire rope and the amount of wound wire rope on the drum. Thus, the pulling force remains the same at all times, the pulling rope is thinner and consequently longer, and the tractor can be of lower power. A lighter wire rope helps to increase productivity and faster wood harvesting on the one hand and to reduce user fatigue on the other.


The drive consists of a worm gear enabling high gear ratios, and spur gears elements immersed in the oil bath which enables higher efficiency, reduces maintenance costs and increases its life span. The torque from tractor is transited to the worm gear on the winch over a triple-strand roller chain.

6-plate clutch
6-plate clutch

The multi-plate clutch prevents overheating/slipping of the clutch (6 plates).

Proportional valve
Proportional valve

Proportional valve for continuous pressure adjustment.


HAWE electromagnetic control valves with high pressure filter in the control block. Hydraulic components are galvanically corrosion protected. The oil tank is made of stainless steel.


The throttle for adjusting the brake opening speed enables slower release of the wire rope tension. This prevents uncontrolled spinning of the drum, which often results in an entanglement of the wire rope.

Pre-loaded wire rope tensioning roller
Pre-loaded wire rope tensioning roller

Pre-loaded wire rope tensioning roller for more precise wire rope winding.


A guide for precise winding of wire rope on a drum.

Are you interested?

Locate your nearest Uniforest representative and get an offer.

Optional equipment

Recommended wire rope thickness according to the maximum wire rope length:

  • 12mm/130m
  • 11mm/155m

The wire rope must be up to standard, the breaking force of the wire rope must be at least twice as much as the pulling force.

Technical data

70 GK
Pulling force (kN) 68
Braking force (kN) 85
Wire rope medium speed (540 min-1) (m/s) 0.56
Drum capacity - wire rope length/diameter (m/mm) 155/11 130/12
Recommended tractor power (kW/hp) 74/100
Max. RPM (min-1) 750
Linkage category II, III
Control electro-hydraulic
Winch drive worm gear
Pump gear pump
Number of clutch plates (pcs) 6
Butt plate width/weight without wire rope (mm/kg) 1920/790 2100/816
Hydraulic hinged butt plate width/weight without wire rope (mm/kg) 1920/870 2100/908
Depth (mm) 840
Height (mm) 1500
Height with window guard (mm) 2300
70 GK
Remote control
Unwinding device
Wire rope guide
Smart 3in1
Auto Stop
Valve that ensures constant wire rope tension
Valve for wire rope unwinding speed regulation
Throttle for brake opening speed
Trailer hitch
Foldable window guard
Chainsaw holder
Fuel tank holder
Pickaxe holder
Storage for forestry chocker chains

● - Standard, ○ - Option, / - Not possible


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