WRT-CRW - Semi-Automatic Rotary Arm Stretch Wrapper

WRT-CRW - Semi-Automatic Rotary Arm Stretch Wrapper Specifications

Production Rate

• 50 loads per hour

Machine Dimensions

• 141.50" L x
• 130" W x
• 117.50" H

Minimum Load Size

• 12" L x
• 24" W x
• 24" H

Maximum Load Size

• 52" L x
• 52" W x
• 52" H

Load Weight

• 4000 lbs

Approximate Shipping Weight

• 3300 lbs

Electrical Requirements

• 120 V /
• 1 ph /
• 60Hz
• 20A

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 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

Structure

• Heavy duty structural steel construction
• Free standing integrated leg design
• Floor mounting legs (4 legs)
• 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

Cocoon Cradle

• 4,000 lbs capacity
• 6 5/8" O.D tubing
• 1/4" thick wall on tubing
• Frame made of 3/16" thick wall tubin
• 1 HP AC motor

Technical Information

• The machine is provided with a manual including electro/mechanical schematics and drawings, troubleshooting guide & Installation instructions

WRT-CRW - Semi-Automatic Rotary Arm Stretch Wrapper Features

• 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 MicroLogix PLC and AC drives
• 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
• 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
• 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
• 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
  • 4-year unlimited cycle warranty
  • lifetime warranty on prestretch rollers
  • 10-years on the steel structure and ring gear

WRT-CRW - Semi-Automatic Rotary Arm Stretch Wrapper Video

WRT-CRW - Semi-Automatic Rotary Arm Stretch Wrapper Photos