Deitz PHARMAFILL HT6-B User manual

Model HT6-B Heat Shrink Tunnel
Operation Manual
Rev B

2022-06-29 Rev B Pharmafill Model HT6B User Manual
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CONTENTS
1. GENERAL ILLUSTRATIONS ........................................................................ pgs II thru VI
2. SAFETY REMINDER..................................................................................................... 1
3. INTRODUCTION.......................................................................................................... 2
4. SPECIFICATIONS ......................................................................................................... 4
5. GENERAL INFORMATION ........................................................................................... 5
6. INSTALLATION............................................................................................................ 7
7. SET-UP........................................................................................................................ 8
8. OPERATION ................................................................................................................ 9
9. MAINTENANCE........................................................................................................... 10
10. TECHNICAL INFORMATION ........................................................................................ 11

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Section 1 - GENERAL ILLUSTRATIONS
HT6B Heat Tunnel–Front View
1. Blower Intake Cover
2. Blower
3. Control Panel
4. Tunnel Enclosure
5. Handle
6. Lift Stand –with manual height adjustment
5
4
6
3
2
1

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III
HT6B Heat Tunnel–Rear View
1. Power Cord
2. Power Requirements
3. Mounting Rods
2
1
3

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HT6B Heat Tunnel–Control Panel
1. Main Power and Fan Switch –circuit breaker
2. Heater Element Temperature Controls –Front and Rear
1
2

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HT6B Heat Tunnel –Left End View
1. Intake End of Tunnel Enclosure
2. Rubber Curtain
2
1
Belt Moves
This Way

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HT6B Heat Tunnel–Bottom View
1. Air Blade - Left Bottom
2. Air Blade - Right Bottom
3. Heating Elements –(not visible)
4. Inner Slotted Panels –(not visible)
3
1
2
4

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Section 2 - SAFETY REMINDER
Warning
This machine contains moving parts and
operates automatically. This may present a
hazard to personnel.
Never operate this machine with any covers or guards removed or any guard switches or
safety devices removed or bypassed.
Only people who have been correctly trained should operate or clean this machine.
Only people who are correctly qualified and trained should carry out maintenance,
installation or any other service work.
Never clean or service the machine without isolating the
electrical supply and isolating the air supply.
Always test for the presence of voltage before touching or working on electrical components.
Note that there might be other requirements that could apply.
Refer to the manuals supplied by the component manufacturers for further safety
instructions.

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Section 3 - INTRODUCTION
Thank you for purchasing a Pharmafill Model HT6B Heat Tunnel. We at Deitz Company hope you will find
that the Model HT6B meets or exceeds your expectations and requirements for an affordable, reliable
and innovative addition to your packaging operation.
Pharmafill products are designed and manufactured by Deitz Company Inc., in Wall, NJ, USA. We have
manufactured machinery for the bottle filling industry since 1966 and started our Pharmafill line in
1993. We are a small (but growing) family-owned business that emphasizes quality, innovation and
superior customer service.
If you have any questions or comments, please contact us by phone or visit our website. Chances are
someone whose last name is Deitz will handle your inquiry personally.
Deitz Company Inc.
PO Box 1108
1750 Route 34
Wall, NJ, USA 07719
Tel [phone]
Fax [phone]
E-mail [e-mail] or
[email protected]om
Web site deitzco.com or
pharmafill.com
The operation manual is designed to make it easier for you to know the machine and to make use of its
intended range of operation. It contains important instructions on how to operate the machine safely,
adequately and economically. Observing these instructions helps to avoid risks, to reduce cost for repair
work and machine downtime, and enhances the machine’s operational reliability and lifetime.
The operation instructions are to be supplemented by further instructions due to existing national
regulations on accident prevention and environmental protection.
If used in compliance with the instructions contained in this manual and provided that safety devices are
regularly maintained and properly working, this machine is not dangerous to the operator.
This manual is to be kept accessible to all operators using this machine and it is assumed that before use
the operator will read fully, and understand, this manual and will follow instructions stated within.
(continued)

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Section 3 –INTRODUCTION (cont’d)
As this machine may be used in the packaging of hazardous substances the operator should be aware of
the precautions required for these substances.
In addition to the operating instructions and the binding regulations on accident prevention valid in the
country where the machine is being used and at its operational site, the recognized technical rules on
safe and proper working must be observed as well.
These operating instructions and the information contained therein have been compiled with due care
and attention. However, DEITZ COMPANY does not take any responsibility for misprints, translation
errors or other errors and any damages resulting there from.
DEITZ COMPANY retains the right to make changes in the described products to improve functionality,
reliability and other design considerations. The measurements or data shown on schematics, sketches
and photos are not binding. They are for description purposes.
The information and drawings found in the operation manual are the intellectual property of DEITZ
COMPANY and may not be copied or given to third parties.
LEGAL NOTICE: DEITZ COMPANYTM, PHARMAFILLTM and any graphic representations of the same
are legal trademarks of Deitz Company Inc. and may not be used by others without specific
written permission from Deitz Company.

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Section 4 - SPECIFICATIONS (Also see technical info at end of manual)
GENERAL
Model HT6B Heat Tunnel
Part Number AD1177
Heating Element Types 208 VAC or 240 VAC (must match receptacle voltage)
Temperature Range Variable up to 450˚(air temp)
Product Capability Most heat-shrink materials used for tamper evident neck banding
Container Size Up to 10” high on standard container 1
Neck or top section maximum width 3”
Containers which may be exposed to temperatures of up to 450˚ F
Maximum Rate up to 100 containers/minute
INPUT
Receptacle Voltage 208 VAC or 240 VAC (must match heating elements)
Cycles 50/60 HZ
Phase 1
Amperage 30.0 Amps
Power 6000 Watts
Compressed Air NA
Room Humidity NA
DIMENSIONS
Floor Footprint 22”wide x 24” deep (56 cm X 61 cm)
Height1Variable 48”to 58” (120 cm to 146 cm)
Container Height From 1” to 10” (2.5cm to 25.4cm) 1
Weight HT6B Heat Tunnel less mounting: 40 lbs (19 Kg)
HT6B with Conveyor Mounting option: 45 lbs (21 Kg)
HT6B with LS-HT Lift Stand option: 70 lbs (32 Kg)
HT6B with LS-HT EAL option: 85 lbs (39 Kg)
CONVEYOR Requirements
Ideal height 36” +/- 1” (92cm +/- 2.5cm)
Wear Strips Non-plastic directly under heat tunnel
Rails No rails directly under heat tunnel
CONSTRUCTION MATERIALS
Stainless Steel, Anodized Aluminum
There are no contact parts- the container is not touched.
Notes:
1. May be adjusted further by adjusting or modifying leveling feet.

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Section 5 –GENERAL INFORMATION
1. Description
The HT6B is a small forced-hot-air heat tunnel with simple circuitry, designed to efficiently
shrink neck bands around the top of glass or plastic bottle. Bottles must be carried through the
tunnel by a suitable conveyor at a certain speed (to be determined). The size of the bottle and
cap must fit through a 3.5” W x 3” H opening.
2. Power requirements (also see Section 4)
Ideally, the tunnel is designed for use with 230 VAC. However, it can be used with 208 VAC with
a slight reduction in maximum temperature and slower shrinking speeds. We normally do not
supply a connector on the end of the power cable because we do not know what type of
connection you plan to use. If a specific connector is requested with the order, we will supply
the tunnel with a connector.
3. Mounting
This heat tunnel must be supported over a conveyor. There are two methods.
The most basic mounting is a simple assembly that is permanently attached to the side of the
conveyor. The conveyor must be of sufficient construction to be able to support the weight of
the tunnel without sagging. To change height of the tunnel over the conveyor, the tunnel must
be manually supported while the two mounting rods are raised or lowered.
The tunnel can also be ordered with a floor-mounted adjustable-height lift stand (Model LS-HT).
The light-weight lift stand has a screw-type height adjustment which is operated via a hand
wheel. This allows the HT6B to be easily raised or lowered, or moved away from the conveyor
for cool-down, or for use on another line.

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Section 5 –GENERAL INFORMATION (cont’d)
4. Design Features:
a. Heating elements - two 3000-Watt tubular heaters, one in front and one in back.
b. Blower - located on top of the enclosure. Room air is blown through the heating
elements toward the center of the tunnel.
c. Blower Intake Cover –a round cover that can be closed over the blower air intake
opening to regulate air flow. The tunnel heats up faster if this cover is closed. It also
reduces air movement through the tunnel. After the tunnel heats up, this cover should
be at least half open. Adjust the cover so there is a balance of sufficient air movement
and heat in the tunnel.
d. Inner panels of tunnel - slotted panels that that direct hot air to a specific area of the
tunnel. The shrinking process is a combination of convection and radiant heat causing a
thin plastic band to shrink around the top of the bottle and cap. The slots in the panels
direct air toward the bottom of the neck band for the first half of the bottle passage to
tighten the bottom of the band before the top is heated.
e. Main Power Switch –mounted in the control panel, is also a 40 Amp circuit breaker.
f. Rotary Temperature Controls –two are mounted in the control panel. Each control one
of the heating elements. You can select low, medium and high temperature settings.
There is no temperature readout.
g. Heat Resistant Curtain - covers the entrance of the tunnel. It helps to hold heat inside
the tunnel and reduces the hot air escaping coming from the tunnel entrance.
h. Adjustable Neck Blades –two are mounted on the bottom of the tunnel. These blades
should be adjusted so they are close to the bottle as it passes through the tunnel.
Proper adjustment keeps the tunnel hotter and deflects hot air toward the bottle.
i. Double-wall Construction- used so that the outer cover is not directly exposed to the
heat elements and is cooled by the fan air flow. The exit for the cooling air is through
several holes in the bottom edge of the outer cover. Do not block these holes.

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Section 6–INSTALLATION
1. When the tunnel is ordered, a method of attaching the tunnel to the conveyor is selected.
a. A simple bolt-on mounting plate can be attached to a non Pharmafill conveyor, or more
easily clamped on a Pharmafill CV4.5 type conveyor using a Pharmafill CV clamping
bracket assembly. Two vertical L- shaped rods with clamping collars are adjusted to hold
the tunnel at the ideal height and location over the conveyor.
b. A floor mounted light weight stand can be used to support the tunnel using the same L-
shaped rods. One advantage of the floor stand is a hand crank that easily raises/lowers
the tunnel. It can also be easily moved away from the conveyor if the conveyor belt is
stopped under a hot tunnel.
2. A method of connecting the tunnel power cable to power must be determined. It can be
hard wired to a circuit breaker box, or a plug can be wired to the end of the cable that
matches a mating cable connector or a wall mounted fixture. Power breaker should be at
least 30 Amps. The current for 220 Vac is about 26A. For 208 Vac, about 29 A. The tunnel
control panel breaker will trip at 40A.
3. The conveyor that serves the heat tunnel must be suitable for the heat that is emitted from
the bottom of the tunnel. A plastic chain type belt can be used but there can not be plastic
standoffs or low friction plastic wear strips under the belt that will melt. Normally there are
no side rails under the tunnel. The belt should never be stopped under a hot tunnel. A
Pharmafill CV4.5 conveyor is modified by replacing plastic wear strips with brass substitutes.
4. The tunnel should be located along the conveyor where the heat from the tunnel will not
affect other machines nearby. The recommended clearance is 24” from each end, however
as little as 12” is often used.

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Section 7 –Set Up
1. Adjust the height of the heat tunnel over the conveyor. Height will depend on the bottle
dimensions. The lower edge of the tunnel should be about 1/2 inch below the neck
band. This will direct hot air toward the bottom of the band when the bottle enters the
tunnel.
2. Line up the centerline of the tunnel over the center line of the conveyor belt. Both
centerlines should be parallel.
3. Bottles must move from the entrance end of the tunnel which will heat the bottom of
the band first. Tunnels are designed for bottles moving left to right. If the conveyor
moves in the opposite direction, the tunnel can be mounted with the back side facing
toward the front. Controls will not be as accessible, but this arrangement will work.
4. Adjust the bottom blades so they close the bottom opening as much as possible without
touching the bottle.
5. Turn on the conveyor and pass bottles through the tunnel as a ‘dry run’ to be sure they
are not touching the bottom blade and that they fit through the 3” x 3.5” opening.
Adjust the conveyor side rails so they deliver the bottle to the center of the tunnel
opening. The tunnel centerline should parallel to the conveyor belt movement.
6. Conveyor side rails will be exposed to heat from the tunnel. Plastic rails may melt, and
metal rails will get very hot. The rail ends should be no closer than about 3” from the
tunnel
7. Turn on the conveyor so a plastic belt will be moving under the heat tunnel. If the belt is
not moving, the heat from the tunnel can melt the plastic links.
8. Turn on the HT6B power switch and set the temperature controls to Hi. Close the
blower intake cover to speed up the heating process. The hole on the center of the
cover lets some air always move through the blower. The tunnel will heat up to about
350 degrees in about 5 minutes.
9. After about 5 minutes open the blower cover halfway. To determine if the tunnel is hot
enough, pass a bottle with a neck band through the tunnel and examine the shrinking
results.
10. Set the conveyor speed so the bottle is inside the tunnel for as long as necessary to get a
proper shrink.

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Section 8–OPERATION
1. The number of bottles that can pass through the tunnel with a good shrink band result
will depend on the following:
a. There are different types of plastic (PET-G, PLA, and PVC) that begin to shrink at a
certain temperature and will shrink a maximum percentage of original size.
b. As a cold bottle passes through a hot tunnel it will bring the inside temperature
down slightly. The size of the bottle and the space between bottles determines how
much cold bottle mass is inside the tunnel at any one time. One small bottle passing
through the length of the tunnel has a very small effect on the heat inside the
tunnel. Ten large bottles passing through end to end will drop the heat significantly
and may impair the shrinking process.
c. Conveyor speed determines how long the bottle is inside the hot tunnel. If conveyor
speed is high, the shrink process may not be complete for the period the bottle is
inside the tunnel. Set the speed to get the necessary results. Speed will change
depending on bottle size, number passing through at the same time, type of plastic
being used, temperature control settings, and how correctly mechanical
adjustments like the blower cover opening and bottom blades have been made.
2. You can reduce the temperature control settings if the shrinking process is good at a
lower setting and conveyor speed is low.
3. You can make the tunnel hotter or get more air movement by adjusting the blower
cover. You should select a percentage of opening that gives you the desired results. If
you close the cover the tunnel will be hotter, but the low air movement may cause a
less uniform shrink. If the cover is wide open, you will get maximum air movement but
lower temperature. The recommended position for the cover is half closed.
4. SHUTTING DOWN:
•NEVER STOP THE CONVEYOR BELT UNDER A HOT HEAT TUNNEL.
The conveyor belt material may be damaged by heat.
•NEVER TURN OFF THE MAIN POWER WITHOUT COOLING DOWN FIRST
Without a cool down period, heat from the elements can damage the controls.
•To shut down the tunnel operation, first TURN THE TEMPERATURE CONTROLS TO
OFF FOR AT LEAST 5 MINUTES. The blower will continue to run. After five minutes, it
is safe to turn off the Main Power Switch.
•If you have the floor stand type mount, you can push the heat tunnel back away
from the conveyor if it is necessary to turn off the conveyor belt. If there is a
complete power failure for both the hot tunnel and conveyor, and the conveyor belt
stops, raise the tunnel by whatever means necessary.

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Section 9–MAINTENANCE
1. Maintenance –No maintenance other than cleaning. Keep the inside of the tunnel clean
and free of melted neck bands. Keep the louvers open on the 4 vent plugs in the top of
the control panel. Keep the ventilation holes at the bottom clear.
2. Lubrication –there is no lubrication required.
3. Spare parts consist of a heating element, a main power switch with 40A circuit breaker,
a temperature controller, and a blower.

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Section 10 –TECHNICAL INFORMATION
1. PRINCIPLE OF OPERATION
The Pharmafill Model HT6B applies heat in the form of forced hot air to a pre-applied tamper
evident seal on a container that is passing through the tunnel on a conveyor. The seal is made of
heat-shrinkable material and the HT6B will shrink the band material so that it conforms tightly
around the container.
2. CYCLE OF OPERATION
(Connected to electrical power, Heater Element Temperature Controls at lowest setting)
Turn power on with Main Power/Fan switch.
•Electric power goes to the Heater Element Temperature Controls.
•Fan turn on and blow cool air into tunnel and across heater elements.
Turn either or both Heater Element Temperature Controls clockwise.
•Heater elements heat up in proportion to the setting of the temperature controls.
•Heated air is forced through the inner wall of the tunnel and into the center space.
Turn either or both Heater Element Temperature Controls fully counterclockwise.
•Heater elements begin to cool down.
•Fan continues to blow cool air into tunnel and across heater elements.
Turn power off with Main Power/Fan switch.
•Electric power is discontinued to the Heater Element Temperature Controls.
•Fan stops blowing.

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Section 10 –TECHNICAL INFORMATION (cont’d)
3. TROUBLESHOOTING
a. No power overall or to some components.
❑Check power cord is plugged in and in good condition.
❑Check Main Power Switch is in ON position.
❑Check that circuit breaker feature of Main Power Switch is not tripped
- if breaker is tripped, wait for it too cool down, then reset.
- if it trips again, you must find the cause of the overload.
b. Blower fan runs but both heater elements do not heat up
❑Check Temperature Controls are not in OFF position.
❑Turn Temperature Controls to higher number
c. Blower fan runs but one heater element does not heat up
❑Check respective Temperature Controls is not in OFF position.
❑Turn respective Temperature Control to higher number
❑Have a qualified electrician check for presence of voltage of both sides of suspect
temperature control.
❑If temperature controls are good, heater element is bad.

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Index of Technical Notes/Drawings (document section begins after this page)
Doc. No. Title No. of Pages
AD1172-DIM Dimensional Drawing 1
WD1018 Electrical Diagram 1
TD-HT6-0001 Receptacle Voltage 1
AD1177_PM Preventative Maintenance 1
EAL Series 2 Auto-Lift Operator Manual 5
Addendums or additional technical data
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