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Wulftec WRTA-175
Automatic Rotary Arm Stretch Wrapper
WRTA-175 Rotary Arm Stretch Wrapper manufactured by Wulftec offers an effective alternative to hand wrapping loads.
Features
- AC variable frequency drives as standard equipment
- 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 MicroLogix PLC and AC drives
- All motors, proximity sensors, photoeyes and other sensors have quick disconnect cables that simplify installation and maintenance
- Heavy-duty steel for rugged performance, even in the harshest work environments. They’re built to last forever
- 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 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
- Non-Proprietary parts accessible on a local base
Specifications
Production Rate: 50 loads per hour
Machine Dimensions: 146" L x 130" W x 122" H
Maximum Load Size: 56" L x 56" W x 80" H
Load Weight: Unlimited
Approximate Shipping Weight: 2500 lbs
Electrical Requirements: 120 V /1 ph /60Hz 15A
Air Requirements: 3 cfm @ 80 psi
Controls
- 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 functionManual 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
- Mode switch (Manual or Automatic)
- Pull cord with 40' of cable (to be installed by customer)
- Separate station on front of tower with clamp jog and an additional e-stop
- Lack of film alarm
Structure
- Heavy duty structural steel construction
- 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
- 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
Film Tail Treatment
- Automated Cut/Clamp & Wipe system
- Pulse controlled cutter
- Film alignment arm & Brush on film tail treatment
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