Forestry & Firewood Machinery Specialists
Heizo Lucas Mill  
Book a Demo
Request a Brochure
ARB Lease
See All
Devon Open Days 2021
Devon Open Days 2021
10-11 Sep 2021
Woodwater Farm - Chudleigh - Devon - TQ13 0BU.
The latest new offering from Heizohack is the HM10-860KL Heizotru... ..more
View All
View all Specials
S/H HM6-300VM
S/H HM6-300VM
Self Powered Road Tow Mobile wood fuel chipper
Now £34,995 + VAT

Uniforest- Series GK Winch

Forestry Winches PROFI - SERIES GK
Click images to view larger

Forestry winches with a constant pulling force ensure that the pulling force is the same throughout the working area, the wire rope is thinner and consequently longer and the tractor can be of less power.

90 GK power is a professional forestry winch with a constant pulling force of 8,5 t. A thinner (lightweight) wire rope allows greater productivity and faster timber harvesting.

Forestry winch 90 GK power with constant pulling force 8.5t, the largest and most robust in its category. The winch is positioned closer to the tractor and the pulley is fixed lower, which improves and lowers the winch centre of gravity. 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.

  • Adjustable brake release speed and brake force
  • AUTO STOP function (limit switch)Unwinding device with two pulleys
  • Electronically adjustable brake opening time
  • Remote control Terra FA5-A1Easy setting up
  • Maxi drum
  • Large storage spaces in front of winch
  • Plenty of storage area for additional equipment
  • Hydraulic hinged butt plate
  • Foldable window guard
Technical Specifications:

70GK 90GK power
Drive (kN) Worm gear Worm gear
Pulling Force (kN) 68 85
Brake force (kN) 85 106
Wire rope medium speed (m/s) 0.56 (540rpm) 0.56 (540rpm) 
Drum capacity length for 11mm diameter wire (m) 155 /
Drum capacity length for 12mm diameter wire (m) 130 130
Drum capacity length for 13mm diameter wire (m)  / 110
Recommended tractor power (kW/HP) 74/100 88/120
Clutch plates (pcs) 6 8
Pump  Gear Pump Gear Pump
PTO shaft revolutions (rpm) 750 750
Oil pressure (bar) 160 160
 Oil quantity (l)  3.5 3.5
Standard butt plate length (mm) 1920 2200
Optional butt plate length (mm) 2100
1920mm hydraulic hinged butt plate Standard /
2100mm Hydraulic hinged butt plate Optional /
2400mm hydraulic hinged butt plate Optional
Depth of winch (mm) 970 970
Height of winch- excluding guard (mm) 1500 1500
Height of winch including guard (mm) 2300 2300
Weight without wire rope 1720mm (kg)

680 (720 option)

Unwinding device Standard Standard
 Unwinding with 2 hydraulic motors Standard 
Wire rope guide Standard Standard
Auto stop function Standard Standard
Smart 3in1 Standard /
Adjustable braking force / Standard
Adjustable breaking force speed / Standard
Remote-control TERRA FUNK FA5-A1 Standard 
Key Features:


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.



Adjustable braking force (progressive break system)Adjustable braking force allows the wire rope to be unwound without the unwinding device, regardless of the force on the pulling rope between the winch and the load.



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.

  • Fuelwood (Warwick) Limited, Claywood, Beausale, Warwick, Warwickshire, CV35 7AF
  • Tel: 01926 484673
  • Email:
Website design by ZARR Ltd