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KOLLER North America, Inc.
Koller North America, Inc.
PO BOX 638
24745 Alsea Hwy.
Philomath, OR, 97370
Distributor T-Mech
33969 Hwy 99E
Tangent OR 97389
541 248 3537
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K 702

K702 Power Yarder uphill/downhill

Built on vehicle
  • used truck possible (K702 platform with own engine)
  • no auxiliary output (NMV) necessary
  • with roll-over protection you can also mount it on a crawler
K702 platform

  • up to 49' (14,5m) (incl. screwable tower extension)
  • 6-cylinder Cummins Diesel with 217 HP
  • Engine speed is controlled by a foot accelerator
Gear box:
  • Powershift transmission
  • 3 gears in every direction
  • on load shiftable
Gear box for Main- and Haulbackline drum
  • Special straight bevel gear pair with high efficiency
  • Low-noise
  • Very robust output shafts
Main- and Haulbackline drum:
  • Robust casted quality with tough side walls
  • Ring for brake and clutch is casted to the drum
  • Exact winding
  • High line speed up to 2160'/min (720m/min or 12m/sec)
Band brakes for Main- and Haulbackline drum:
  • Air actuated membrane spring loaded cylinders with foot- and handbrake
Radial clutches for Main- and Haulbackline drum:
  • Air actuated radial clutches with smooth control valves
  • The clutches are very though designed and mounted outside the drums for easy maintenance
  • Radial clutches do not stress the bearings of the drums, neither axial nor radial
  • Air is a clean medium (environmentalism)
  • Pulling force is exactly controllable
Skyline drum
  • Driven by a separate oil motor with multiple disk brake and quick release for emergencies
  • Exact managing of skyline tension possible
  • Alle Funktionen werden direkt von der Kabine aus gesteuert
Line capacity
  • Skyline: 2550' of 7/8" (800m of 22mm)
  • Mainline: 2800' of 9/16" (850m of 14mm)
  • Haulbackline: 2800' of 9/16" (850m 14mm)
  • Strawline: 5100'of 1/4" (1700m of 6mm)
Tractive forces
  • Skyline : up to 26450 lbs (120kN) in the tension section
  • Mainline: up to 17640 lbs (80kN) at average drum
  • Haulbackline: up to 17640 lbs (80kN) at average drum
Strawline drum
  • The skylinedrive could be switched to the strawline
  • Freewheel function
  • Pneumatic contolled inner shoe brake
  • Separate drive for each of the four guyline winches
  • The guylines are leaded inside the tower and do not obstruct other lines
  • Economy cabin - simple construction with mit Standheizung
  • Comfort cabin - with air condition, comfort seat with air suspension, roof window, working lights and so on
  • SKA 2,5
  • SKA 2,5-Z
  • USKA 2,5
  • MSK 3
  • With economy cabin and all lines circa 33,100 lbs (15.000kg)
  • With comfort cabin , roll-over protection and all lines
    circa. 44,900 lbs (19.000kg) (for mounting on a crawler)

Copyright 2009-2010 by Koller North America, Inc.

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