KONRAD Forsttechnik GmbH


The economical solution for first thinning

The economical solution for first thinning


Konrad thinning harvester

Power 55,4 kW
Crane reach 9,3 m
Tilt angle 22°
Typical operating weight 11.600 kg

The economical solution for first thinning

The Konrad Thinning Harvester (KDH40-1) with Woody WH40-1 is the answer for following question: Are first thinning economical? With the tracked harvester KDH from Konrad definitely!

The add-on system enables an individual customer configuration tailor made for their needs. For example keeps the tiltable upper carriage the operator environment levelled in steep slopes. An optimized main boom for improved kinematic as well as an extension with hidden hose routing further improves reach and productivity. Further useful options such as climbing support bars mounted on the tracks, a hydraulic winch, the Power-Boost-Hydraulic-Accumulator or an additional rear weight comlete the KDH offering. The purchase- and operational costs stay economical even with that versatil offer. A low weight and compact design make transports simple and easy.

  • Low acquisition and operating costs
  • Optimized lift arm
  • Tilt device for upper carriage
  • Power boost – hydraulic accumulator
  • Climbing aids at the chain drive

KDH40-1 Multi

Option: KDH Multi

The new multi telescopic boom allows the attachment of the following devices: Tree shear (feller), mulcher, embankment rake or timber grapple. The attachments are exchanged using a quick-change system

KDH thinning harvester



Technical data

General Information

Basic machine Wacker Neuson ET90
Typical operating weight 11600 kg¹)
Control system KTC 1.0
Harvester units WH40-1, WH40-2


  Stage V
Motor type watercooled PERKINS 4-cylinder turbo diesel engine
Power (1825 U/min) 55,4 kW
Torque (1600 U/min) 300 Nm
Total displacement 2,8 l
Diesel tank capacity 85 l

Crane system

Crane extension 1500 mm
Range 9,3 m
Tilt angle +22,0° / -0°
Slewing range 360° (endless)


  Track drive
Speed 5 km/h
Axle track 1800 mm
Chain width 450 mm
Ground clearance 370 mm

Hydraulic system

Drive pumps variable displacement pump
Working pump 180l/min, 300 bar
hydraulic oil specification HVLP 46
Filling capacity hydraulik oil tank 92 l


Rigging winch RW90-1 max. 30 kN pulling force (adjustable), Cable: Ø11mm/80m, incl. rope ejector

1) Version: with WH40-2

Optional equipment: In addition to the standard equipment, a broad range of optional equipment is also available. Further information on standard and optional equipment can be obtained from your KONRAD distributor.

The manufacturer reserves the right to make technical modifications and improvements.