Forestry winches
Forestry winch 2x75 HK / HKpro
Forestry winches

Forestry winch 2x75 HK / HKpro

The double drum winch head with a constant pulling force, the 2x75HK / HKpro, is the first double drum winch head model with a constant pulling force, fixedly mounted on the tractor.

2x75 HK / HKpro

About the machine

The double drum winch head 2x75 HKpro has a double pulley with a constant pulling force of 7.5t. An unwinding device with two feed rollers and hydraulic motors assure greater wire rope tension and greater unwinding force. Moreover, it has the SMART 3in1 function. There is also a double drum winch head with a constant pulling force, the 2x75 HK which is the version without an unwinding device and SMART 3in1 function. Both models have an extra-large drum capacity, which allows for more wound-up wire rope.

  • Pulling force is the same at all times and constant over the entire diameter of the drum. 
  • Wire rope is thinner and consequently longer. 
  • Greater capacity of the rope drum. 
  • Permitted simultaneous pulling of both drums. 
  • Compact design. 
  • Possible mounting on any tractor with more than 80HP.

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 tight 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.


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 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.

The unwinding device drive implemented 2 ways:

The unwinding device drive implemented 2 ways:

a) Drive via the hydraulic system of the winch: The winch has 2 additional pumps and valves installed.

b) Drive via the hydraulic system of the tractor: An additional hydraulic unit is connected to the hydraulic system of the tractor. The advantage of such drive is in the higher amount of oil, which allows for greater unwinding power.

The unwinding device with two pushing rollers and two hydraulic motors ensures greater unwinding power and allows for greater tension of the wire rope between the unwinding device and the drum during the winding process. The wire rope unwinding speed can be regulated.  

6-plate clutch
6-plate clutch

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

Double pulley
Double pulley
An extra-large drum capacity
An extra-large drum capacity

An extra-large drum capacity ensures that a longer rope can be wound to cover a larger area. It also reduces the loss of the pulling force with a fully wound drum.


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.


Prebrake prevents uncontrolled rotation of the drum and subsequent entanglement of the wire rope.

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Optional equipment

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

  • 12mm/2x105m
  • 13mm/2x90m

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.

Due to the constant pulling force, the winch is fit to pull heavier loads that are at a short distance away from the tractor and for pulling wood over road slopes.

David Logar
GD Logar d.o.o.

Technical data

2x75 HK 2x75 HKpro
Pulling force (kN) 75 75
Braking force (kN) 94 94
Wire rope medium speed (540 min-1) (m/s) 0.6 0.6
Drum capacity - wire rope length/diameter (m/mm) 105/12 90/13 105/12 90/13
Recommended tractor power (kW/hp) 60/80 60/80
Max. RPM (min-1) 750 750
Control electro-hydraulic electro-hydraulic
Winch drive worm gear worm gear
Nr. of clutch plates (pcs) 6 6
Width (mm) 840 840
Depth (mm) 660 660
Height (mm) 800 800
Weight without wire rope (kg) 500 490
2x75 HK 2x75 HKpro
Remote control
Unwinding device /
Smart 3in1 /
Valve that ensures constant wire rope tension /
Valve for wire rope unwinding speed regulation /
Throttle for brake opening speed
Winch mounting plate

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


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