WB 1500/12+4.5+4.5 Z371

  • Completely electronically controlled puller-tensioner for up to 3 (1 + 1 + 1) cables with 6 (3 x 2) bull wheels (Ø 1500 mm), with a groove diameter 45 mm (optional 60 mm) and a max. pulling and tensioning force of 3 x 45 kN or 1 x 120 kN
  • Each bull wheel can be controlled individually

Technical Data


Max. pulling force3 x 45 kN or 1 x 120 kN
Max. speed5.5 km/h
Max. Speed with max. pulling force3.4 km/h


Max. tensioning force3 x 45 kN or 1 x 120 kN
Max. Speed with max. tensioning force5.5 km/h
Min. tensioning force ATS | SLTSapprox. 10 kN | approx. 2.5 kN (120 kN Bull wheels)
Min. tensioning force ATS | SLTSapprox. 4.5 kN | approx. 1.5 kN (45 kN Bull wheels)


Number6 (3 x 2)
Diameter1500 mm
Groove Ø45 mm
Optional60 mm
Number of conductorsup to 3 (1 + 1 + 1)


Length x Width x Heightapprox. 7.5 x 2.5 x 2.5 m
Weightapprox. 11000 kg


  • 2-axle chassis with rigid axles and parking brake for up to 30 km/h (construction site operation, without official approval for road service)
  • Lockable aluminum cover
  • Acoustic insulation
  • Back support via robust hydraulic sprag
  • Front support via robust mechanical support winch
  • Automatic rope/conductor clamping with grounding device


  • Max. 155 kW (210 hp)
  • Liquid-cooled diesel engine with electronic rpm-control
  • 24-V system with high capacity battery


  • Each bull wheel with planetary gear and hydraulic motor as completely enclosed drive unit (highly efficient, minimal maintenance)
  • Each bull wheel with an automatically activated safety brake
  • Hydraulic system with quick-action screw couplings to individually control 2 drum stands


  • Control of rope direction and rope speed (infinitely) by joystick
  • ATS, Automatic Tensioning System
  • PLC control for optimized productivity and safety
  • Clearly arranged control panel with color display for supervision of pulling and tensioning force as well as hydraulic, drive, and electric system with an intelligent diagnosis and fault recognition system
  • ZECK Stringing Data Record System with USB port
  • Automatic hydraulic oil cooling system
  • Adjustable overload protection


  • Diesel engine in accordance with EU emissions directive
  • Precleaner for engine air filter
  • Brake, lighting and mudguard (for rigid chassis)
  • 2-axle chassis with suspended axle, brake, lighting and mudguard for up to 80 km/h
  • Front support via robust hydraulic support
  • Bull wheels for left- and right-hand-lay conductors
  • Groove diameter 60 mm
  • Cable or radio remote control
  • Printer for ZECK Stringing Data Record System
  • Remote diagnosis via GSM network with GPS modem
  • Synchronisation system
  • Electronically controlled drum stand pretension
  • SLTS, Smart Low Tensioning System (machine can be used in stringing operations with low tensioning force, e.g. OPGW)
  • Hydraulic system for drum stand control with flat face quick-action couplings
  • Hydraulic system (700/1000 bar) to power pressing tool
  • Lockable toolbox
  • Grounding plate including fixture and grounding device (cable 3 m, 50 mm²)
  • Holding fixture for hose kit
  • Arctic Kit with preheating system for up to -30 °C
  • Biodegradable hydraulic oil

Special designs on request