Stretch Equipment

Large wulftec wrt 150 stretch wrapper


Semi-Automatic Rotary Arm Stretch Wrapping System

Model: WRT-150

The WRT-150 floor mounted model is a semi-automatic rotary tower stretch wrapping system. It is Wulftec's most popular WRT model. All Wulftec semi-automatic rotary arm machines feature common benefits including the capability of wrapping up to 50 loads per hour, 20" NO-THREAD powered pre-stretch carriage with 50-300% pre-stretch, 25" ring gear bearing with pinion gear driv, 12 RPM variabvle speed, unlimited load weight capacity and heavy-duty structural steel construction.

  • NEMA 4/12 control panel dust tight and waterproof
  • The control panel is UL508A approved
  • 100% Structural Steel Construction
  • Superior Electrical/Electronic Design including Allen Bradley MicroLogix PLC and AC drives
  • Wulftec's exclusive 20" NO-THREAD® Powered Pre-Stretch Carriage (30" optional)
  • Easily available non-proprietary parts
  • State-of-the-art electrical control panel with all finger safe electrical components
  • Superior driving mechanism with heavy duty ring gear with pinion gear drive
  • Angled carriage to wrap approximately 2" above floor level
  • Emergency stop sensor for arm path obstruction
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
  • 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
  • 10" Square tubing column
  • Floor mounting integrated design with 10 anchor points
  • Easy access to all components
Anchoring Requirements
  • Wulftec recommends using heavy-duty expansion shields of 3/4" diameter thread size with a minimum anchor depth of 4" in concrete. To be I-beam (6" to 8") mounted, there are 2 anchors at the bottom and also 2 bolts on the top of the machine frame.
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
Technical Information
  • The machine is provided with a manual including electro/mechanical schematics and drawings, troubleshooting guide & Installation instructions
  • Optional
  • Production rate based on load configuration and machine options
  • Overall dimensions of machine in operation
  • All machine specifications are subject to change without prior notice
  • Please consult your distributor for prices.
  • Please note that retrofits are to be installed by a Certified Wulftec Technician.
  • Carriage

    20" hydraulic carriage (no pre-stretch)
    30" hydraulic carriage (no pre-stretch)
    30" NO-THREAD® Powered Pre-Stretch Carriage
    Carriage adaptor bracket for 20" film on 30" carriage
    Manually Adjustable Dual Roping Bar
    Manually Adjustable Single Roping Bar
    Pneumatic roping dual
    Pneumatic roping dual - extra photoeye
    Pneumatic roping single


    Lanyard remote
    Lanyard remote
    Pull cord
    Remote push button station
    Safety control lockout
    Upgrade from standard to deluxe
    Warning Alarm / Horn
    Warning flashing light


    Wrap arm diameter extension - 104in
    Wrap arm diameter extension - 92in
    Wrap height extension - 104in
    Wrap height extension - 92in


    Wash down motors


    Epoxy paint
    Steel-it paint

    Pass height

    Pass height matching existing conveyor line


    Dark load detection


    Safety fencing
    Safety light curtains


    Electronic scale


    2-speed - variable up to 17 RPM
    High speed - variable up to 17 RPM


    Pallet stopper

    Swivel stand

    Swivel Stand - Manual
    Swivel Stand - Powered Electric

    Temperature package

    Cold A (32 to 41°F / 0 to 5°C)
    Cold B (5 to 32°F / -15 to 0°C)
    Cold B (5 to 32°F / -15 to 0°C) - Deluxe panel
    Cold C (-31 to 5°F / -35 to -15°C)
    Fan & Exhaust
    Warm A (up to 115°F / up to 46°C)
    Warm B (104°F / 40°C and up)


    Customized transformer
    Standard transformer
    Transformer for Cold C temperature package