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Wulftec WRT-175

Semi-Automatic Rotary Arm Stretch Wrapper

The WRT-175 model stretch wrapper is a semi-automatic rotary tower stretch wrapper that is an ideal stretch wrapping solution for your unique needs.


  • AC variable frequency drives as standard equipment
  • NEMA 4/12 dust tight and waterproof control panel
  • Control panel is neatly organized eliminating time otherwise lost searching for wires
  • Control panel is UL508A approved
  • Superior Electrical/Electronic Design including Allen Bradley MicroLogix PLC and AC drives
  • Quick disconnect cables that simplify installation and maintenance on all motors, proximity sensors, photoeyes and other sensors.
  • Made of heavy-duty steel for rugged performance, even in the harshest work environments.
  • A 25" ring gear with pinion gear drive provides the strongest drive in the industry.
  • Dual chain driven for balanced movement & no vibration
  • The "Maintenance Free" spring loaded carriage gate equipped with spring loaded rollers, ensures optimal contact with the stretch film year after year, without involving maintenance
  • Preset pre-stretch ratios are available from 50-300%
  • The angled carriage with very low wrap possibility, the product is properly secured to the pallet, resulting in a pallet that is more stable for transport, and therefore less damage
  • No film threading is required


  • Allen Bradley MicroLogix 1200 PLC
  • 24V control system
  • Current overload protection
  • NEMA 4/12 control cabinet (can be located up to 10' from machine frame)
  • Autoheight sensing photoeye
  • Power on/off switch and status light
  • Start/stop push button
  • Large emergency stop (push / pull type)
  • Manual carriage up/down function
  • Variable rotary arm speed (12RPM)
  • Separate up and down carriage speeds
  • Separate top and bottom wrap selectors
  • Reinforced wrap/manual rotation control
  • Positive arm alignment controlled by proximity sensor
  • Top cover pause switch (Splash proof program)
  • Spiral up or spiral up/down switch
  • Film force to load control
  • Emergency stop sensor for arm path obstruction


  • Heavy duty structural steel construction
  • Free standing integrated leg design
  • Floor mounting legs (3 legs)
  • Easy access to all components

Film Delivery System

  • 20" NO-THREAD® Powered Pre-Stretch Carriage
  • 1 HP AC motor with Allen Bradley variable frequency drive
  • Lifetime warranty on pre-stretch rollers blue compound
  • Film force release for easy pull at start and end of cycle
  • 50-400% pre-stretch ratio (preset to customer spec, Std 200%)
  • Electronic film tension control with analog sensor
  • Lexan roller cover for operator safety
  • Angled carriage to wrap approximately 2" from floor level
  • Proximity sensor on carriage gate to ensure gate is properly closed

Film Carriage Drive

  • 1 HP AC motor with Allen Bradley variable frequency drive
  • Two #50 carriage lifting chains
  • Dual 1/2" CRS ways with UHMW-PE carriage glides
  • Dual structural steel supporting boom
  • Power track for efficient guiding of wires

Rotary Arm Drive

  • Heavy duty 25" ring gear with pinion gear drive
  • 1 HP AC motor with Allen Bradley variable frequency drive
  • 0-12 RPM variable speed
  • Electronic soft start/stop
  • Positive arm alignment controlled by proximity sensor
  • Protection guard over the ring gear


  • Production Rate: 50 loads per hour
  • Machine Dimensions: 165.50" L x 130" W x 117.50" H
  • Maximum Load Size: 56" L x 56" W x 80" H
  • Load Weight: Unlimited
  • Approximate Shipping Weight: 2050 lbs
  • Electrical Requirements: 120 V /1 ph /60Hz 15A