Wulftec WRING-250 Rotary Ring Automatic Stretch Wrapper

Wulftec WRING-250 Rotary Ring Automatic Stretch Wrapper

At a Glance

  • Mid-speed horizontal ring wrapper
  • 75 loads per hour
  • Wrap double-stacked loads
  • Band with single or multiple bands
  • 5000 max load weight
  • These stretch wrappers are built to last forever
  • Best warranties in the stretch wrapper industry
Sustainability Tip

Buy your stretch film from us, and get a discount on this Wulftec stretch wrapper!

Click to enlarge

Wulftec WRING-250 Rotary Ring Automatic Stretch Wrapper

Produce up to 75 Pallet Loads per Hour

The WRING-250 model is a fully-conveyorized automatic ring machine as the ideal stretch wrapping solution for your unique needs. Expect to improve productivity, operator efficiency while reducing film and labor costs.

Features of the WRING-250

AC variable frequency drives as standard equipment on all machines
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
Easy to understand alarm signalization
All motors, proximity sensors, photoeyes and other sensors have quick disconnect cables that simplify installation and maintenance
Photoeyes are maintenance free and protected
All Wulftec structures are made of heavy-duty steel for rugged performance in the harshest work environments
These stretch wrappers are built to last forever
4-legged design for maximum stability at high speed
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 roller blue compound
Preset pre-stretch ratios are available from 50-300%
Angled carriage with very low wrap possibility properly secures the product to the pallet, resulting in stable transport and less damage
No film threading required
Lexan cover eliminates operator's ability to reach rollers when gate is closed
Wulftec's revolutionary drop away clamp ensures clean film release from the pallet load
Non-proprietary parts accessible on a local base

Cut and Wipe System

Pneumatically operated cut and wipe-on system automatically cuts and wipes the film onto the load upon cycle end
First a vertical roller positions the film over the clamp which grabs the film, ensuring 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

Best Warranties in the Industry

3-year unlimited cycle warranty
10-year warranty on steel structure
Lifetime warranty on pre-stretch roller blue compound

Please contact Pro Pac or call 888-318-0083 for your stretch wrapping equipment.


Production Rate 75 loads per hour
Machine Dimensions 114" L x 108" W x 154" H
Minimum Load Size 30" L x 30" W x 24" H
Maximum Load Size 48" L x 48" W x 80" H
Load Weight 5000 lbs (6000 lbs optional)
Approximate Shipping Weight 11500 lbs
Electrical Requirements 230 V /3 ph /60Hz 20A
Pneumatic Requirements 3 cfm @ 80 psi
Controls Allen Bradley SLC 5/03 PLC (Field I/O on ASI open protocol)
Allen Bradley variable frequency drives 230 VAC
24V control system
Current overload protection
NEMA 4/12 control cabinet with quick disconnect
Auto-height sensing photoeye with on/off mode
Power on/off lockable switch and indicator light
1 E-STOP mushroom type push button on the operator console
Allen Bradley monochrome touch panel
Variable rotary ring speed 25 RPM
Separate up and down carriage speed
Separate top and bottom wrap selectors (0-9)
Banding selector (0-9)
Home position controlled by proximity sensor
Film force to load control
Lifting frame over travel limit switches
Alarm beacon light
Manual function for rotation fwd/rev, ring up/down
All conveyor fwd/rev
Re-wrap function
Intuitive alarm diagnostic on touch screen
Reset function
Air pressure switch
Non proprietary parts
120 VAC outlet in control panel for service work
Film Delivery System 20" NO-THREAD® powered pre-stretch carriage
Tilting film mandrel for ease of film loading
AC motor with Allen Bradley variable frequency drive
50-300% pre-stretch ratio (preset to customer spec, Std 200%)
Electronic film tension control with analog sensor
Film force release for easy pull at start and end of cycle
Sensing device for film out/broken with visual alarm
Wireless technology for interference free operation
Film Tail Treatment Automatic pneumatic film clamping
Pulse-controlled cutter
Film alignment arm & brush on film tail treatment
Ring Rotation Drive 2 HP AC motor with Allen Bradley variable frequency drive
Electromechanical brake
25 RPM variable speed
Belt driven
Ring Frame 72" interior / 106" outside diameter including carriage
Steel frame construction
Supported by polyurethne bearings for smooth and quiet operation
Upper and lower ring limit position
Frame Construction Welded structural steel construction
Free standing integrated leg design
Heavy duty safety fencing with an interlocked access door enclosing the wrapping zone
Easy access to all components
Conveyor 1 x 11.5' process powered roller conveyor section
Technical Information The machine is provided with a manual including electro/mechanical schematics and drawings, trouble shooting guide and installation instructions

How Can We Help You?

We'll get right back to you

Ready to Expand?

We are here to help you grow your business. Increase your efficiency, reduce your costs, and quickly deliver your product to your customers.

Pro Pac Line Engineering & Integration Services

Pro Pac Custom Printed Film & Material Services

Primary & Secondary Food Packing Services

Connect With Pro Pac