WCRT-175 Automatic Rotary Arm Stretch Wrappers

The WCRT-175 model, an automatic conveyorized rotary tower as the ideal stretch wrapping solution for your unique needs

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  • Wulftec was the first in North America to put AC variable frequency drives as standard equipment on all machines. Why? Lower maintenance and better reliability—Wulftec stretch wrappers will save time and money
  • NEMA 4/12 control panel dust tight and waterproof
  • The control panel is neatly organized eliminating time otherwise lost searching for wires
  • The control panel is UL508A approved
  • Superior Electrical/Electronic Design including Allen Bradley CompactLogix PLC and AC drives
  • User friendly touch screen offers a simple yet effective way to adjust and maintain your equipment
  • All motors, proximity sensors, photoeyes and other sensors have quick disconnect cables that simplify installation and maintenance
  • All Wulftec structures are made of heavy-duty steel for rugged performance, even in the harshest work environments. They’re built to last forever
  • Robust 3-legged design for optimal stability and less stress on the frame
  • A 25″ ring gear with pinion gear drive provides the strongest drive in the industry and is warranteed for 10 years.
  • Dual chain driven for balanced movement & no vibration
  • Our heavy duty conveyors are second to none in the industry
  • 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
  • Wulftec is the only manufacturer to offer a LIFETIME warranty on its pre-stretch rollers’ blue compound.
  • 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 and a Lexan cover eliminates operator’s ability to reach rollers when gate is closed
  • The pneumatically operated cut and wipe-on system automatically cuts and wipes the film onto the load upon cycle end
    • A vertical roller positions the film over the clamp which grabs the film; this ensures longer heat wire life expectancy
    • Then the heat wire swings in and cuts the film
    • A timed impulse heat control, allows quick cool down so the heat wire becomes cold to the touch within 5 seconds
  • Wulftec’s revolutionary drop away clamp ensures clean film release from the pallet load
  • Benefit from our splash proof program with the top cover pause
  • Non-Proprietary parts accessible on a local base
  • The best warranties in the industry
    • 3-year unlimited cycle warranty
    • lifetime warranty on prestretch rollers
    • 10-years on the steel structure and ring gear

Key Specs

Production Rate

  • 60 loads per hour

Maximum Load Weight

  • 5000 lbs
  • 6000 lbs

Maximum Load Size

  • 48 " L x
  • 48 " W x
  • 80 " H


  • NEMA 4/12 control cabinet with quick disconnect
  • Allen Bradley PanelView Plus 600 color touch screen interface
  • Allen Bradley CompactLogix L16ER PLC with an integrated Ethernet port
  • 24V control system
  • Current overload protection
  • Sick autoheight sensing photoeye with on/off mode
  • Power on/off lockable switch and indicator light
  • 230VACMotors with AC variable frequency drives and contactors
  • Two emergency stop stations (1 on panel / 1 in wrap zone)
  • Manual mode for rotation fwd/rev and carriage up/down
  • Variable rotary arm speed (15 RPM)
  • Double brush dust tight slip ring
  • Intuitive alarms diagnostic
  • Reset function
  • Separate top and bottom wrap selections (0-9)
  • Separate up and down carriage speeds
  • Manual conveyor jog fwd only (fwd/rev optional*)
  • Film force to load control
  • Manual clamp jog
  • Alarm beacon
  • Dynamic braking system for rotary arm with AC drive
  • 1 HP 230VAC Motor & AC variable frequency drive

Machine Dimensions

  • 144 " L x
  • 141 " W x
  • 140 " H

Approximate Shipping Weight

  • 3700 lbs

Electrical Requirements

  • 230 V /
  • 3 ph /
  • 60 Hz
  • 15 A

Pneumatic Requirements

  • 3 cfm @
  • 80 psi

Film Carriage Drive

  • Emergency stop for arm path obstruction
  • Angled carriage to wrap approx. 2" from conveyor level
  • 1 HP AC motor with Allen Bradley variable frequency drive
  • Two #50 carriage lifting chains
  • Dual steel supporting boom
  • Power track for efficient guiding of wires
  • Machined UHMW-PE carriage glides on 1/2" CRS rails

Film Delivery System

  • Lifetime warranty on pre-stretch rollers blue compound
  • 20" NO-THREAD® Powered Pre-Stretch Carriage
  • Film force release for easy pull at start and end of cycle
  • 50% to 300% pre-stretch ratio (preset to customer spec, Std 250%; capability up to 400% depending on film type)
  • Electronic film tension control with analog sensor
  • Sensing device for film out/broken with visual alarm
  • Lexan roller cover for operator safety

Rotary Arm Drive

  • 25" Heavy duty Ring GEAR Bearing, with Pinion GEAR Drive
  • 15 RPM variable speed
  • Dual steel boom rotary arm
  • 1 HP 230VAC motor with Allen Bradley variable frequency drive
  • Electronic soft start/stop
  • Positive arm alignment controlled by "Proximity Sensor"
  • Dynamic braking system for rotary arm with AC drive
  • Protective guard covering ring gear

Film Tail Treatment

  • Automatic film clamping device
  • Film alignment arm
  • Brush-on film tail treatment
  • Heat Seal treatment optional


  • Standard pass height 18"
  • Powered process conveyor, 12' long
  • Other pass heights available, please consult factory
  • 2- 1/2" diameter rollers on 3" centers
  • 52" BFR (between frame rails)
  • 3/16" walls cold rolled electric welded steel rollers
  • All rollers driven via #40 chain
  • 1 HP 230VAC motor with contactor starter
  • Heavy-duty structural steel design, interlocking style for continuous equal roller spacing
  • Heavy-duty cast iron flange mounted bearings
  • 30 FPM Fix speed (other optional speeds available*)


  • Heavy duty structural steel construction: easy access to all components
  • Free standing integrated 3 legs design
  • Safety fencing with security door

Safety Features

  • The Wulftec wrapping system is equipped with 3 photoeyes which monitor access points to wrapping zone and prevent accidental insertion of foreign object during wrapping
  • 2 E-Stop mushroom type push buttons: 1 on control panel, and 1 in wrapping zone
  • Additional E-Stop are available upon request
  • Wrapping zone enclosed by heavy-duty personnel obstruction fencing. Complete with electronically interlocked access door
  • An object obstruction safety device stops the machine functions should there be any interference in the wrapping area

Technical Information

  • The machine is provided with a manual including electro/mechanical schematics and drawings, maintenance program and PLC program disk


  • 3-year unlimited cycle warranty
  • 10-year warranty on steel structure
  • 10-year warranty on 25" ring gear bearings
  • Lifetime warranty on pre-stretch rollers' blue compound
* Options