Wulftec WRTA-150 User manual

User’s
Manual
and
Reference
Guide
WRTA-150

Wulftec / M.J. Maillis Group Page 2 of 36 Version 1.7.1 /November 2014
Table of Contents
TABLE OF CONTENTS..................................................................................................................................2
LIST OF FIGURES ..............................................................................................................................................3
AUTOMATIC WARRANTY ............................................................................................................................4
SAFETY LABELS .............................................................................................................................................5
SAFETY...............................................................................................................................................................7
INSPECTION AND INSTALLATION...........................................................................................................8
INSTALLATION OF FENCE HANDLE .................................................................................................... 10
INSTALLATION OF LIGHT CURTAINS ................................................................................................. 11
FILM LOADING AND THREADING ......................................................................................................... 12
WRAPPER CONTROLS................................................................................................................................ 14
MODE OF OPERATION – STANDARD SYSTEM ................................................................................ 17
OPTIONAL PRE STRETCH RATIOS – CHAIN DRIVEN................................................................... 18
OPTIONAL PRE STRETCH RATIOS – BELT DRIVEN ..................................................................... 19
SETTING WRAP PARAMETERS .............................................................................................................. 20
FILM CARRIAGE / ROTATION SPEED............................................................................................................ 20
UPPER/LOWER LIMIT SETTINGS................................................................................................................... 20
TOP WRAPS ..................................................................................................................................................... 20
BOTTOM WRAPS ............................................................................................................................................. 20
OVERWRAP ...................................................................................................................................................... 20
FILM TENSION (POST STRETCH)................................................................................................................... 20
PHOTOEYE SETTINGS..................................................................................................................................... 21
DS-35 PHOTOEYE ADJUSTMENT ................................................................................................................. 23
PHOTOEYE RESPONSE DELAY TIME ............................................................................................................. 24
AUTOMATIC HEIGHT SENSING ...................................................................................................................... 24
SETTING THE LIMIT STOP .............................................................................................................................. 24
ANALOG SENSOR ADJUSTMENT.................................................................................................................... 25
PROXIMITY SENSOR........................................................................................................................................ 26
REVOLUTION AND HOME POSITION SENSORS............................................................................................. 26
REED SWITCHES ADJUSTMENT .................................................................................................................... 26
PROXIMITY SENSOR REPLACEMENT ............................................................................................................. 27
MOTOR SPEED CONTROL ........................................................................................................................ 27
DRIVE PARAMETER SETTINGS ............................................................................................................. 28
MAINTENANCE .............................................................................................................................................. 29
GENERAL MAINTENANCE ............................................................................................................................... 29
FILTER REGULATOR ....................................................................................................................................... 29
CARRIAGE LIFT CHAIN TENSION ADJUSTMENTS......................................................................................... 30
PRE-STRETCH BELTS ADJUSTMENT ............................................................................................................ 30
PRE-STRETCH CHAIN ADJUSTMENT............................................................................................................. 30
PHOTOEYES..................................................................................................................................................... 30
SLIDER BLOCKS/CARRIAGE RAILS .............................................................................................................. 31

Wulftec / M.J. Maillis Group Page 3 of 36 Version 1.7.1 /November 2014
CHAIN MAINTENANCE .................................................................................................................................... 31
REDUCER ........................................................................................................................................................ 31
RING GEAR...................................................................................................................................................... 33
LUBE STATION ................................................................................................................................................ 33
TROUBLESHOOTING – WRTA 150 ........................................................................................................ 34
List of Figures
FIGURE INSTALLATION OF A WRTA 50 ........................................................................... 8
FIGURE 2 ANCHORING POINTS FOR A WRTA 50 ................................................................. 9
FIGURE 3 FILM LOADING AND THREADING ......................................................................... 2
FIGURE 4 DIFFUSE PHOTOEYE ........................................................................................ 2
FIGURE 5 RETROFLECTIVE PHOTOEYE .............................................................................. 2
FIGURE 6 DIFFUSE PHOTOEYE (SPECIAL APPLICATIONS) ....................................................... 22
FIGURE 7 ANALOG SENSOR ADJUSTMENT .......................................................................... 25
FIGURE 8 PROXIMITY SENSOR ........................................................................................ 26
FIGURE 9 FILM IN CLAMP ............................................................................................... 29

Wulftec / M.J. Maillis Group Page 4 of 36 Version 1.7.1 /November 2014
Automatic Warranty
All parts on stretchwrappers manufactured by Wulftec International Inc. (hereinafter called
“Wulftec”) are warranted to be free of manufacturing defects for a period of four (4) years from the
date of shipment, if installed, maintained and used in accordance with factory specifications except
for the two (2) blue polyurethane coated rollers whose coating carry a lifetime warranty and the 25”
ring gear bearing which carries a ten ( 0) year warranty. Wulftec will, at its discretion, repair or
replace any defective stretchwrapping parts returned freight prepaid. All returned parts are subject
to factory inspection and Wulftec reserves the right to determine the cause of failure. Damage caused
by inadequate supply voltage, misuse, neglect or corrosive environment, is not covered by this
warranty. Damage caused during transport is the responsibility of the carrier and is not
covered under this warranty. All damages detected upon receipt of equipment should be
reported immediately to the carrier and Wulftec should be notified. This warranty only applies
if machine start up, modifications or repairs are made by an authorized Wulftec technician.
Wulftec shall under no circumstances be liable for any direct, indirect, special, incidental, consequential
damages, losses or expenses arising in connection with the use of, or inability to use, our product(s)
for any purpose whatsoever. Except as stated herein, Wulftec makes no other warranty, expressed or
implied, nor does it assume or authorize anyone else to assume for it, any other obligation relating to
our products or any other products. This warranty does not apply to machinery or equipment
deemed by Wulftec to have been subjected to misuse, neglect, or that has been started-up, repaired
or altered by unauthorized personnel. Defective parts must be returned to Wulftec within thirty (30)
days of shipment of a replacement and must be returned prepaid and in their original state. Failure
to do so will void this warranty. Defective parts that have been disassembled, damaged during
removal or otherwise tampered with will not be covered under this warranty, unless otherwise stated
in writing by Wulftec. Wulftec makes no guarantee as to the appropriateness of equipment for
particular purposes. Products serviced and/or parts replaced during the warranty period will carry
the unexpired portion of the original warranty only. The sole obligation of Wulftec under this
warranty will be to provide repairs to stretchwrapping components or replacement parts, ex-works
Wulftec.
Parts Return
Within Canada
Wulftec International Inc.
209 Wulftec Street,
Ayer’s Cliff, Québec
J0B C0
-877-WULFTEC
Within the United States
Wulftec International Inc.
Fedex Trade Networks
30 Phelps St
Derby Line, VT 05830
Disclaimer
Wulftec has taken every precaution in the preparation of this manual to ensure its accuracy.
However, this information is subject to change without notice and is provided "as is" with no
guarantee. Wulftec shall not be held liable for any direct, indirect, special, incidental or
consequential damages in connection with the use of the information contained in this manual.
Manual Copyright
No part of this manual may be reproduced, in any form, whether in whole or in part without the
written permission of Wulftec. “WULFTEC”, “RUN WITH THE PACK”, “RUN AHEAD OF THE PACK”,
“No-Thread® Powered pre-Stretch” and “Rapid-Thread™” are trademarks of Wulftec. No trademark
license is granted in connection with the material contained in this manual.

Wulftec / M.J. Maillis Group Page 5 of 36 Version 1.7.1 /November 2014
Safety Labels
In an effort to reduce the risk of injury to personnel working around the Wulftec / MJ
Maillis equipment, safety labels are placed at various points to alert them of potential
hazards. Please check equipment and note all safety labels. Make sure your personnel are
vigilant and obey these warnings. Shown below are typical labels that are attached to the
equipment.
PLACED ON ALL CONTROL PANELS.
PLACED ON ALL CONTROL PANELS.
PLACED ON AUTOMATIC MACHINE CONTROL PANELS.
PLACED ON ALL CONVEYORS.
PLACED ON ALL POWERED CONVEYORS, NEAR DRIVE.
PLACED ON ALL MOVING PLATEN, NEAR DRIVE.

Wulftec / M.J. Maillis Group Page 6 of 36 Version 1.7.1 /November 2014
Safety Labels (cont’d)
PLACED ON ALL MACHINE LEGS & TOWER
NOTE: SPANISH, FRENCH AND PORTUGESE LABELS ARE AVAILABLE UPON REQUEST.

Wulftec / M.J. Maillis Group Page 7 of 36 Version 1.7.1 /November 2014
Safety
Read Carefully Before Operating
Any Wulftec Machinery
Wulftec stretch wrap machinery should be handled with the same caution and care as with any
other industrial equipment. Many automatic functions may be potentially hazardous. For this
reason, except for the authorized operator(s) and maintenance crew, other personnel should keep
clear at all times. It is especially important to be aware that mechanical or electrical components
may suddenly become active when the electrical panel is turned on.
Unstable loads being wrapped at high speeds are liable to fly apart and cause machine damage or
personal injury. For this reason, it is suggested that whenever attempting to wrap a "new" load
configuration, all personnel should be well clear of the wrapping area. The load should not be
wrapped at a higher speed than the machine was designed to handle.
Always assume the machine is in an active mode. Disconnect control power prior to servicing,
adjusting or performing routine maintenance procedures.
WARNING!
Unless specifically stated, preceding all instructions in this manual, it must be well
understood that all inspection, maintenance, and repair should be performed only
when the electrical power is disconnected from the machine.
Please use extreme caution if it should become necessary to inspect, diagnose, or adjust the machine
while it is in operation. Only qualified individuals thoroughly familiar with the particular machine
should perform regular maintenance or inspections.
WARNING! Disconnect machine power supply before loading film.
NOTE: This mention (*) indicates that the item is in option on the system.

Wulftec / M.J. Maillis Group Page 8 of 36 Version 1.7.1 /November 2014
A
B
F
C
E
D
Inspection and Installation
Upon Arrival, visually inspect machine for damage caused in transport. If damage to the machine
has occurred, it must be reported to the freight carrier immediately and Wulftec notified. As stated
in warranty on page 5, Wulftec is not responsible for damage caused in transit. If no damage is
apparent, carefully remove all wrapping material, strapping, blocks, etc.
NOTE: Wulftec WRT Wrap Machines series are to be lifted for placement only by
the lifting tubes with an overhead crane, pulley blocks or forklift of at least twenty-
five (25) hundred pounds lifting capacity
Lifting points identification
A. Lift here with overhead crane to remove skid.
B. Shipping bracket.
C. Bottom brackets
D. Cross member
E. Lag bolts.
F. Lift here with forklift.
Figure 1 Installation of a WRTA 150
Unpacking procedure
. Remove lag bolts holding skid together. ( 0 pieces)
2. Leave cross member attached to machine. ( piece) and lift machine from side with strap as
shown to remove skid, then set machine down on floor.
3. Insert forks as far as possible into lifting tubes. (See forklift requirement above).
4. Lift machine while moving forward until machine is in vertical position.
5. Lift machine above floor and remove bottom brackets.
6. Move machine to desired location and anchor to floor.
7. Unwrap carriage and install safety bumper and photoeye bracket.
8. Remove shipping bracket.
NOTE: Because of machine configuration, in various circumstances, some of the
elements of the machine may need to be disconnected. Please follow
instructions/indications on elements and/or relevant diagrams to reconnect.
NOTE: Wulftec recommends using 0 heavy-duty expansion shields of ¾”
diameter thread size with a minimum length of 4” as a minimum anchor in
concrete. The clamp needs to be anchored with 2 anchor nuts of ½” diameter.

Wulftec / M.J. Maillis Group Page 9 of 36 Version 1.7.1 /November 2014
Inspection and installation (cont’d)
Lifting points identification
A. Remove transportation plate that is found
here.
B. Anchoring holes.
-Mechanical anchors: KB ¾” Ø from Hilti,
4” minimum engagement into concrete.
2-Chemical anchors: threaded rod ¾” Ø, Gr:
2, Epcon system, 3 ½” minimum
engagement into concrete.
Verification of the structural capacity of the
floor to be done by others
Figure 2 Anchoring points for a WRTA 150
Note: The type of anchors for the Control Panel and Clamp (if applicable) is to the customer’s
discretion.
This machine needs to be connected to a dedicated line. A dedicated line is a line that is powered
from one breaker or fuse, and that has no other device connected to it. Furthermore, the line shall
be such that the voltage at the outlet will not drop more than 5% under full load. Use of extension
cords is not recommended.
To measure the voltage drop, measure the voltage at the outlet with nothing connected to it this is
VA, then measure the lowest voltage during machine operation. Please read during the complete
cycle and note the lowest value, this is VB.
Take the difference between VA and VB and divide it by VA. This will give you the voltage drop
percentage. Drop= (VA-VB)/VA. This drop should remain under 5% for proper machine operation,
and for compliance with the electrical code.
As an example, an outlet connected to a 5A breaker, wired with # 4AWG wire, should not be
further than 70' from the breaker, to meet the 5% voltage drop.
NOTE: Because of machine configuration, in various circumstances, some of the
elements of the machine may need to be disconnected. Please follow
instructions/indications on elements and/or relevant diagrams to reconnect.
A
B

Wulftec / M.J. Maillis Group Page 10 of 36 Version 1.7.1 /November 2014
Inspection and installation (cont’d)
Installation of Fence Handle
See the following drawings in order to facilitate the installation of the handle on the safety fencing.
Refer to assembly drawing 6MFEN00496.
: Clamp key switch plate in place with edge, flush with post. Transfer holes approximately center of
slot for adjustment. Drill 9/32” hole through post. Install key switch with carriage bolts.
0MINS00006, rev.
Align slide bolt with key switch. Shims must pinch door panel angle iron. Tighten nuts.
1

Wulftec / M.J. Maillis Group Page 11 of 36 Version 1.7.1 /November 2014
Installation of Light Curtains
The light curtains must be installed at the entrance of the fencing, away from the wrap zone and be
positioned as close to the fencing as possible (refer to overview drawing). Make sure the posts are
leveled (both sides, vertically) before anchoring. Maximum distance is 4’, but the closer from each
other they are the easier it will be to adjust them.
. Anchor the posts.
2. Make sure both light curtains are at the same level/height.
3. Connect the light curtain, if not connected already.
4. Final alignment is performed by mechanically adjusting the light curtains components, using the
top light beams as guide.
5. The alignment mode is automatically activated when the light curtain is switched on if the light
beams are not yet aligned or the light path is interrupted.
Top light beams (A)
•Red light beam – light curtain is misaligned or an obstacle is blocking
the path
•Green light beam – system clear
•Yellow light beam – muting in action, will never occur with this setup
Bottom light beams (B)
•Red light beam – light curtain is misaligned or an obstacle is blocking
the path
•Orange light beam – cleaning or alignment required
•Yellow light beam – reset required
•Green light beam – system clear
6. The light curtains will reset themselves each time the light is broken but a rearm must be
done on the lanyard or the control panel to enable the wrapper to begin a cycle.

Wulftec / M.J. Maillis Group Page 12 of 36 Version 1.7.1 /November 2014
Film Loading and Threading
The film roll should be loaded so that the tacky surface will face inward on the pallet load.
. *Make sure the machine is in stop mode before opening the fencing door. Do not press on E-stop.
2. *Open safety fencing door (if applicable).
3. Push the lock on the carriage gate latch to unlock carriage door.
4. Remove empty film roll.
5. Ensure that the inner core of the new film roll is undamaged. If the lower (bottom) of the inner
core is damaged or somewhat unwound, trim or shave it with a sharp knife.
6. Lift the film roll and make it slide along the film support roll. Then move the bottom of the film
roll over the bottom cone film roll holder to ensure that the roll is securely in place.
7. Pull the film from the roll until a good film web is reached, cut the film and discard the damaged
portion.
8. Pull out the film manually; ensure enough length to reach the clamp when it’s closed.
9. Place film loosely between door and pre-stretch rollers, then close the door and ensure that the
carriage locks are correctly locked (this is a 2-position lock; make sure to reach the 2
nd
position
when closing the door).
0. Pull out the film manually in order to verify proper loading and operation of the film carriage.
. Cut off the excess film and place the film on the clamp, then close the clamp with the clamp jog
push button (located on the wipe plate near the e-stop).
2. Close the door, press reset to rearm the door circuit then acknowledge the alarm and restart the
machine.
3. If film breaks during a wrap cycle, repeat steps 7 to 2 or attach film to the product.
Figure 3 Film loading and threading
Carriage Lock

Wulftec / M.J. Maillis Group Page 13 of 36 Version 1.7.1 /November 2014
Film loading and threading (cont’d)
WARNING! Before threading the film, press on the dancer bar once door is
opened to make sure the pre-stretch rollers are not turning. If they are, contact a
Wulftec Customer Service representative immediately. Do not touch the carriage.
Inadvertent movement of the dancer bar will cause the rollers to turn abruptly,
creating the possibility of serious injury. The operator must respect the film
loading and threading instructions AT ALL TIMES!
NOTE: If the film web breaks during the cycle, reattach the film, or if necessary,
rethread the film following the instructions. It is not necessary to reset the
machine. If E-stop is activated, the pre-stretch and the clamp will not work. If the
E-Stop is pressed, pull it.
The machines equipped with a standard carriage are programmed to stop when a
lack of film occurs. In a wrap cycle during which the rotation speed is higher
than 0Hz and the pre-stretch motor stops working for more than three (3)
seconds, the machine will fall into a stop state. The cause is either a stop a lack
of film or a film break. Follow the film threading procedure (previous pages) to
rethread the film to start/restart a cycle.
The machines are equipped with a proximity
sensor used to determine if the carriage door is
closed properly. This sensor can be seen
through the hole in the carriage cover. When
the light is lit, it indicates that the carriage door
is closed properly. If the door is open, the pre-
stretch motor will stop working or if the
machine is running a wrapping cycle, it will stop by itself rapidly. If
the light is not lit, make sure the door is properly closed. The
machine is ready for a start cycle.

Wulftec / M.J. Maillis Group Page 14 of 36 Version 1.7.1 /November 2014
Wrapper Controls
Pictogram Controls Functions
Power Illuminates to indicate power Off/On.
O I
Power on/off Turns power OFF/ON to the machine.
Start/stop Starts or stops the wrap cycle (also continues the wrap
cycle after the top cover pauses or after stopping "in
cycle" by using the emergency stop) and brings the
carriage down in spiral up mode.
Emergency stop Temporarily stops the sequence by cutting all power to
the drives. Wrapping sequence may be re-started after
pressing E-stop. (To re-start the wrap cycle, simply
release the E-stop and press the START/STOP button.)
Autoheight off/on Allows "autoheight sensing" for pallet load height
variations. (There are limit switches on the carriage
with adjustable stops on tower as safety override).
Top cover off/on Offers the ability to "Pause" the cycle when the film
carriage reaches the top of the load in order for the
operator to place a top sheet on the load. Once top
sheet is in place, the operator presses "Start/Stop"
button and the cycle resumes, wrapping the top sheet
with the specified wraps. The machine then completes
the rest of its wrap cycle.
Spiral up up/down Controls the way pallet load is wrapped. In spiral up
mode, specified bottom wraps are completed. Carriage
then travels up to do specified top wraps and stops.
The operator cuts the film and presses "Start/Stop"
button, which automatically brings the carriage down
to home position for the start of the next cycle. In the
spiral up/down cycle, the carriage spirals up
immediately in order to wrap the top of the load first,
with the specified top wraps. Then the carriage travels
down to wrap the bottom with the correct number of
bottom wraps. This cycle provides stability to the
pallet where loads are more sensitive to centrifugal
reaction and instability, depending on stacking
methods.

Wulftec / M.J. Maillis Group Page 15 of 36 Version 1.7.1 /November 2014
Wrapper Controls (Cont’d)
Pictogram Controls Functions
Carriage speed up Controls speed of carriage in up direction, which has
effect on cycle time and film overlap. It should be
adjusted with great care when trying to optimize speed
while maintaining quality wrap on product. Min. on
potentiometer is lowest speed attained.
Carriage speed down Controls speed of film carriage in the downward
direction, which has an effect on cycle time and film
overlap. It should be adjusted with great care when
trying to optimize speed while maintaining quality wrap
on product. Min. on potentiometer is lowest speed
attained.
Top wraps Determines the number of wrap layers at the top of the
load, adjustable from 0 to 9.
Bottom wraps Determines the number of wrap layers at the bottom of
the load, adjustable from 0 to 9.
Rotation speed Allows the rotation to be set at the speed best suited to
the load, variable from min. (being the lowest speed
attainable without stopping) to 2 RPM.
Reinforce wrap Reinforce wrap function allows the operator to reinforce
any section of the load by pausing the carriage
movement while the rotary arm continues. The
number of turns in reinforce wrap is determined by the
amount of time the switch is activated. This function
allows the operator to set a number of reinforce wraps
in a minimal amount of time.
Manual rotation Manual rotation moves the rotary arm to desired
position.
Film tension Controls the tension between film carriage and pallet
load (i.e. higher % tension = tighter wrap).
Carriage
Down/up
With the machine cycle stopped, allows carriage to be
moved up or down.

Wulftec / M.J. Maillis Group Page 16 of 36 Version 1.7.1 /November 2014
Wrapper Controls Options (Cont’d)
Pictogram Controls Functions
*Top platen off/on When at ON, the top platen will be active when the
machine is set to operation. When at OFF, the wrap
sequence will be performed without activating the top
platen.
*Top platen
up/down
With the machine in manual mode, this switch allows
the top platen to be moved up or down.
*Clamp jog Opens or closes the clamp jaws. There is a four (4)
second delay before the clamp jaws close to allow the
operator enough time to place film in jaws. The carriage
will not feed the film if the clamp jaws are closed.
*Reset Brings the carriage down and moves the rotary arm
back to home position.
*Cut arm
Off/on
Used to activate or deactivate the cut arm.
*Auto/manual mode Used to select the automatic or the manual mode.
When in automatic mode, all automatic options will be
active. When in manual mode, all manual options will
be active.
*Cradle forward Moves the cradle rollers forward to a desired position.
*Cradle speed Used to set the speed of the cradle rollers .

Wulftec / M.J. Maillis Group Page 17 of 36 Version 1.7.1 /November 2014
Mode of Operation – Standard System
. Load film and then put power on.
2. On the touch screen, go to the automatic page.
3. Select Wrapping Off if wrapping not required.
4. Depress "Reset".
5. When reset completed, depress "Start". *The button will light up.
6. Machine waits for a load.
Beginning of the Wrap Sequence
NOTE: You can temporarily stop the wrapping sequence at any time. This can be
done by pressing the Start or E-Stop button. (To re-start the wrap cycle, simply
release the E-Stop and press Start). It is to be noted that by resetting the machine,
a new cycle is initiated.
7. Place the load in the center of the wrapping zone.
8. Activate the pull cord or push customer ready to wrap communication to begin rotation.
9. After .5 turns, the clamp releases the film.
0. The carriage moves up.
. The top of the load is sensed.
2. The machine completes the top wraps.
3. The carriage moves down.
4. The carriage stops at bottom limit switch.
5. The machine completes the bottom wraps.
6. The rotation slows to minimum speed.
7. The rotation stops at home position.
8. The film push arm goes out.
9. The clamp closes.
20. The cutter wire rotates into film and cuts it on contact.
2 . The film is wiped.
22. The film push & wipe arm goes back to home position.
End of Wrap Sequence
To activate Manual mode, go to the manual page on the touch screen. By doing so, automatic
sequence and reset are immediately interrupted.

Wulftec / M.J. Maillis Group Page 18 of 36 Version 1.7.1 /November 2014
Optional Pre stretch Ratios – Chain Driven
RATIO % "A" WULFTEC "B" WULFTEC
0 20 0MSPK00078 15 0MSPK00044
50 13 0MSPK00016 15 0MSPK00044
75 13 0MSPK00016 17 0MSPK00059
100 20 0MSPK00078 30 0MSPK00011
125 13 0MSPK00016 22 0MSPK00065
150 16 0MSPK00015 30 0MSPK00011
175 13 0MSPK00016 27 0MSPK00184
185 14 0MSPK00008 30 0MSPK00011
200 14 0MSPK00008 32 0MSPK00014
225 13 0MSPK00016 32 0MSPK00014
250 12 0MSPK00022 32 0MSPK00014
275 14 0MSPK00008 40 0MSPK00140
300 12 0MSPK00022 36 0MSPK00070
RPM “C” WULFTEC
12 35B12 0MSPK00171
15 35B12 0MSPK00171
17 35B12 0MSPK00171
21 35B15 0MSPK00108
24 35B15 0MSPK00108
30 35B18 0MSPK00182
*All “C” pulleys are 5/8” bore
Offset link #0MCHN000 8
Master link #0MCHN000 9

Wulftec / M.J. Maillis Group Page 19 of 36 Version 1.7.1 /November 2014
Optional Pre stretch Ratios – Belt Driven
RATIO % "A" WULFTEC "B" WULFTEC BELT " " WULFTEC
0 6 0MSPK00 3 2 0MSPK00 68 50L050 0MCHN00044
30 4 0MSPK00 30 4 0MSPK00 30 50L050 0MCHN00044
40 3 0MSPK00 32 4 0MSPK00 30 50L050 0MCHN00044
50 3 0MSPK00 32 5 0MSPK00 24 50L050 0MCHN00044
75 2 0MSPK00 68 6 0MSPK00 3 50L050 0MCHN00044
00 4 0MSPK00 30 2 0MSPK00 34 65L050 0MCHN00045
25 7 0MSPK00 25 28 0MSPK00 75 87L050 0MCHN00046
50 6 0MSPK00 3 30 0MSPK00 28 87L050 0MCHN00046
75 2 0MSPK00 34 44 0MSPK00 38 225L050 0MCHN00047
85 5 0MSPK00 24 32 0MSPK00 29 87L050 0MCHN00046
200 4 0MSPK00 30 32 0MSPK00 29 87L050 0MCHN00046
225 3 0MSPK00 32 32 0MSPK00 29 87L050 0MCHN00046
250 2 0MSPK00 68 32 0MSPK00 29 87L050 0MCHN00046
275 4 0MSPK00 30 40 0MSPK00 70 2 0L050 0MCHN00057
300 3 0MSPK00 32 40 0MSPK00 70 202L050 0MCHN00065
RPM “C” WULFTEC BELT "2" WULFTEC "D" WULFTEC
2 2FL050 0MSPK00 33 2 0L050 0MCHN00057 40L050 0MSPK00 70
5 2FL050 0MSPK00 33 2 0L050 0MCHN00057 40L050 0MSPK00 70
7 2FL050 0MSPK00 33 2 0L050 0MCHN00057 40L050 0MSPK00 70
2 4FL050 0MSPK00 69 2 0L050 0MCHN00057 40L050 0MSPK00 70
24 4FL050 0MSPK00 69 2 0L050 0MCHN00057 40L050 0MSPK00 70
30 6FL050 0MSPK00 92 225L050 0MCHN00047 40L050 0MSPK00 70
43 6FL050 0MSPK00 92 202L050 0MCHN00065 36L050 0MSPK00226
*All “C” pulleys are 5/8” bore

Wulftec / M.J. Maillis Group Page 20 of 36 Version 1.7.1 /November 2014
Setting Wrap Parameters
The operator can select or tune a number of variable wrapping parameters in order to achieve the
desired wrap configuration. These controls also affect the cycle time.
Film Carriage / Rotation Speed
The film carriage speed control varies the rate at which the carriage travels up and down. This, in
conjunction with the rotation speed, determines the amount of film overlap. The slower the carriage
speed, given the fact that the rotation speed remains unchanged, the greater the overlap. The
rotation speed should be set to optimum speed for a given load stability to achieve optimum cycle
times.
Upper/Lower Limit Settings
The upper limit stop bracket sets the upper limit of the wrap. If this bracket is set lower than the top
of the load, it will override the photoeye (standard on most machines). The lower limit stop bracket
located on the arm sets the lower limit of the wrap.
Top Wraps
The number of top wraps applied to the top of the load has to be set on the touch screen. It can be
set to apply zero (0) to nine (9) wraps to the top of the load.
Bottom Wraps
The number of bottom wraps applied to the bottom of the load has to be set on the touch screen. It
can be set to apply zero (0) to nine (9) wraps to the bottom of the load.
Overwrap
The film overwrap is the extent to which the film carriage wraps above the load. Under stretch, the
film tends to fold itself over the top, providing a greater degree of retention. The overwrap can be set
by adjusting the timer on the touch screen. The upper limit stop may also be used to set the
overwrap (if this limit switch is activated before the photoeye, it will override it). Note that the
carriage speed up setting is going to change the overwrap adjustments.
Film Tension (Post Stretch)
The film tension control on the control panel inside the enclosure adjusts the tension (or pull)
between the film carriage and the load. The higher the tension control is set, the tighter the load is
wrapped.
NOTE: For proper performance of the film carriage, the dancer bar should float
between its limits. Avoid setting the tension so high that the dancer roller becomes
pinned against the secondary roller. If additional tension is desired, simply turn the
adjustment knob to apply more pressure upon the dancer bar.