MEFE CAT 370 550 User manual
MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
www.mefe.com.au | [email protected]
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+617 3283 4536
Free AU 1800 669 006
Operation Manual
Vacuum Packing Machine
CAT 370 550
Revision 7
MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
www.mefe.com.au | [email protected]
Page 2
+617 3283 4536
Free AU 1800 669 006
Contents
1. Uses and Characteriscs .......................................................................................3
2. Model and Technical Parameters ..........................................................................3
3. Appearance and Control Panel Layout................................................................3-4
4. Use Preparaon....................................................................................................4
5. Operaon Procedure ............................................................................................5
6. Other Aenon Maers ....................................................................................5-6
7. Breakdown Analysis and Removal......................................................................6-8
8. Spare Parts List………….………………………………………………….……………………………………..9
9. Parts Breakdown………………………………………………………….……………………………………..9
MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
www.mefe.com.au | [email protected]
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1. Use and Characteriscs
Use:
This vacuum packing machine possess the advantages of superior funcon, easy operaon, simple maintenance and extensive
applicaon. It applies so packing materials such as complex lm or aluminium foil complex lm. It can pack solid, liquid or
powder and paste grain, food, fruit, seed, fragrant arcle, medicine, chemical product, electronic product, precision instrument
and meter, rare expensive metal etc. in the vacuum or can ll them with inert gas under vacuum condions. The products
packed by the machine are prevented from oxidizaon, mildew, moth, rot and damp, and can guarantee quality and freshness
so as to prolong the food’s storage period.
Characteriscs:
1. This machine is easily used. From pressing the cover of the machine to draw out air, heang the sealing, prinng the
label, cooling, lling with gas and opening the cover of the machine, the whole course is automacally controlled.
2. The regulang ranges of the sealing temperature and me are very wide so that the machine is able to pack various
materials.
3. There is an emergency stop buon on the control panel. If the packed items are abnormal during drawing air, you can
press the emergency stop buon to stop the packing procedure.
2. Specicaons and technical parameters
Basic technical parameters
3. Control panel layout
The control panel should be set rst before operang the machine:
1. The lid of the device must be open in order to change the sengs.
Model Supply
voltage
Power Dimensions of vacuum
chamber (L x W x H)
Sealing size &
number
Exhaust volume
of pump
Overall dimensions
(L x W x H)
CAT 370 DZ400 220V 900W 400 x 320 x 60mm 400mm x2 20 m3/h 540 x 490 x 470mm
MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
www.mefe.com.au | [email protected]
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3. Control panel layout Connued
2. .Turn on the power switch located next to the plug and the pilot lights will turn on. Press the “Vacuum” or “Sealing”
buon and the “Increase” or “Decrease” buons to change the me for drawing air and heat-sealing to corresponding
numbers (for instance: if “28” for drawing air and “15” for sealing, then the me of drawing air is 28 seconds and the
sealing me is 1.5 seconds).
3. Firmly press down the lid of the machine and once the vacuum pump starts to draw air then the lid of the machine will
seal shut automacally. The “Decrease” and “Increase” buons control the me of drawing air by regulang the degree
of the vacuum according to the packing requirement. Pressing “Increase” will increase the degree of vacuum and press-
ing “Decrease” will reduce the degree of vacuum.
4. Once air drawing has reached the set me, the course of air drawing will end.
5. Aer the compleon of air drawing, the procedure of sealing begins. There are 3 dierent heat sealing temperatures for
materials of variang thickness, low, medium, and high. Press the “Seal Temperature” seng to cycle through the
dierent temperatures, select the one that will suit your packaging thickness. Change the sealing me by pressing the
“Sealing” buon and the “Decrease” and “Increase” buons, raise the sealing me slowly in order to prevent the seal-
ing temperature from geng too high and burning the sealing parts or from melng the packaging materials.
6. Sealing ends once it is has reached the set sealing me. The atmosphere will enter into the vacuum room through the
solenoid valve, then the cover of the machine will open automacally. The whole procedure is nished, and the next
packing cycle is prepared and ready to go.
4. Before Use
Before operaon, you must be well acquainted with the operaon and use instrucons.
1. You must ll the vacuum pump with NO. 68 Food Grade Oil up to 3/4 height of the oil window before starng the ma-
chine. (It is recommended to empty and ush any old oil before adding the NO. 68) At the end of each cycle, the oil level
should not be lower than 1/2 height of the oil window. Do not ll with too much oil as to avoid the oil spraying out. The
oil pump is located behind the panel in the back of the machine.
2. The machine should be placed horizontally in good venlaon and without corrosive gas and dust.
3. Whether using three-phase four-wire or single-phase power, both should be connected with the protecve earth wire
separately for safety.
4. Before starng the machine, select the “Seal Temperature”, the sealing me, and the vacuum me to suit your require-
ments.
5. Plug the machine into power and ip the switch to “ON” and press down the cover of vacuum to start the vacuum
pump. If the temperature is low or the lubricang oil in the vacuum pump is thick, then start the vacuum packing ma-
chine several mes unl the lid of the machine is sealed. (Before starng the machine, turn o the “Seal Temperature”
seng buon to avoid damaging the sealing cloth.)
If the vacuum pump gives out a lot of noise and the vacuum gage’s pointer does not move, then the vacuum pump’s rotary
direcon is wrong—the dynamo’s fan should rotate an-clockwise and the three-phase power should change any two of the
three power terminals (single-phase power hasn’t this phenomenon).
MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
www.mefe.com.au | [email protected]
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5. Operaon procedure
1. Plug the machine into power and choose a packing bag to your requirements.
2. Regulate the heat-seal temperature and time, and choose a high or low heat-seal temperature for sealing. Select your
“Seal Temperature” and your sealing time. To prevent melting or wrinkling the packaging, and to avoid damaging the
Teflon coated fabric (sealing cloth) and other parts, start out with a low temperature and a short sealing time.
3. The vacuum drawing time should correspond to the contents in the packaging and to the value of the vacuum gage. To
get the best effect when packaging wet or special products, it is recommended that you prolong the air drawing time
after the vacuum degree reaches 0.1Mpa (the longest time is 99 seconds).
4. Place the packing bag in the vacuum chamber, the bag mouth should be placed on the heating frame flatly.
5. After finishing the above, the machine is ready to start. Press down the cover of the machine, and the machine will start
automatically.
6. The Vacuum packer will form an airtight seal and draw air for the entered in time.
7. Once the time for the air drawing has ended, the machine will seal the packaging for the entered in time. After the pack-
age is sealed, the machine will end the packaging procedure and open the lid, ready for the next item to be packaged.
6. Other maers
1. One surface of the silicone rubber strip is cross hatch plane and the other surface can be for installing parcle and
prinng label.
2. During work, press the emergency stop button if it is necessary to stop the machine urgently, then the cover of the ma-
chine will open automatically.
3. If you are not using the machine, the power (power switch outside of the machine) should be turned off.
4. The external power wire’s sectional area should be bigger than the inside wire’s sectional area.
5. If elevation above sea level is much higher in the location, than the environmental pressure will be much lower and so
the value of the vacuum pressure gage will correspond lower (see table).
Press down the cover Drawing air Heat the
sealing
Cooling (Release gas) the cover
of the machine opens
Elevaon (m)
*above sea level*
Atmosphere pressure
(kPa)
Degree of vacuum (Mpa)
0101.33 0.101
200 98.95 0.099
400 96.61 0.097
600 94.32 0.094
800 92.07 0.092
1000 89.47 0.090
2000 79.49 0.079
3000 70.11 0.070
4000 62.31 0.062
MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
www.mefe.com.au | [email protected]
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6. Other maers Connued
If working for over 10 hours a day, or in summer, the vacuum pump
will adopt the measure of cooling forcefully out of the machine In
order to keep good working state of the vacuum pump.
7. Breakdown analysis and removal
7-1 Breakdown and removal of vacuum system
7-2 Breakdown and removal of solenoid vacuum valve
Breakdown Reason Solving method
Vacuum pump can’t draw air up to
vacuum.
Pump won’t start See Table 7-3 in detail
The cover of the vacuum room won’t close Press forcefully
Vacuum me relay is damaged Replace
Valve from pump to vacuum room isn’t turned on See Table 7-2 in detail
Vacuum room can’t reach the maximum
vacuum degree
Pump can’t reach the max. vacuum degree See Table 7-3 in detail
Pipe is leaking Replace
Pipe joint is loose Tighten
Small gas cell leaks
Seal ring of vacuum room is broken or scraped Replace
Upper plane of vacuum room isn’t at Properly adjust
Solenoid valve leaks, for instance there is air in the
valve of main pipe or the charging valve.
See Table 7-2 in detail
Time of air drawing is not enough Prolong
Vacuum room’s cover can’t be opened so
that air can’t enter into working room.
Air-bleed solenoid valve isn’t turned on See Table 7-2 in detail
Vacuum room’s vacuum degree is normal
but air always remain in the bag.
Bad reset of hot seal and too short distance Repair to reset exibility
Breakdown Reason Solving method
The sealing is bad
Dirt is enclosed in sealing area Remove
Sealing surface is damaged Repair or replace
Rubber ngs for sealing are damaged Replace
Wire contact is poor
Starng and stopping are inexible or
incapable
Fuse is burned out Replace
Silicon commutaon diode is punctured Replace
Winding is burned out Replace
Armature elevang part has dirt Replace
Rusty or broken spring caused block Replace
Voltage is too low
Air Drawing (vacuum) system diagram:
MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
www.mefe.com.au | [email protected]
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7. Breakdown analysis and removal Connued
7-3 Breakdown and removal of single stage rotary sheet vacuum pump
Breakdown Reason Solving method
Pump can’t reach the spulated max.
vacuum
Lubricant oil goes bad Re-measure max. vacuum aer replacing oil
Oil in tank isn’t enough Add oil to the spulated oil level
Oil pipe leaks Replace or reassemble oil pipe
Sealing of aspiring pipe is poor Check on the sealing condion of pipe and
connecng posion for geng rid of leakage
Air-in valve sheet is jammed Check up if the air-in valve’s acon is exible
Oil sealing leaks Replace the oil sealing
Vane is distorted and the slide isn’t smooth Replace vane
Worn-and-torn inside Repair the worn posion or re-adjust
Pump can’t start
Insucient voltage or burned fuse Check on voltage on fuse
Pump or motor is jammed Remove fan cover, try to turn the motor with a
hand, then nd out the reason of jamming
Pump’s starng current or work current
is too high
Pump oil is too full or the brand is wrong Check on oil level and brand
Lower temperature is causing too high
viscosity of lubricang oil
Replace with oil of lower viscosity. Start aer
preheang oil when environmental temperature
is lower than 5⁰C
Exhauson lter is blocked Clean or change lter
The temperature is too high when pump
runs
Pump oil is too full or too lile Check on and adjust oil level
Heat radiaon is poor Clean the radiang ns of pump and motor to
improve the venlaon situaon
Pump is jammed when running
Running under wrong direcon for a long me Correct the turning direcon and do an overall
check-up of pump at the same me
Fricon surface is lacking of oil Dredge oil pipe and check up gap to nd out the
reason of lacking oil
Abnormal noise when the pump runs Driving parts are seriously worn or loose Find out the trouble posion and repair in me
Air vent smokes or vents oil drop
Pump oil is too full Discharge redundant oil
The installaon posion of exhaust lter isn’t
correct or the material breaks
Reassemble or change the exhaust lter
Exhaust lter is blocked Clean or change lter
MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
www.mefe.com.au | [email protected]
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+617 3283 4536
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7. Breakdown analysis and removal Connued
7-4 Breakdown and removal of heat seal device
Note:
1) These instrucons are only for reference. If any unconformity, please contact the technical department of our company.
2) There are no addional instrucons for special dierent mechanisms in the above-menoned models.
3) There is no addional nocaon for improved design
Breakdown Reason Solving method
Incapable of sealing
Heat-seal choice switch isn’t turned up to the suitable posion
Heat-seal fuse is burned badly Replace
Electrothermal belt is broken Replace
Electrothermal belt is in short circuit
Sealing contractor has broken down
Solenoid valve of small gas cell doesn’t act See Table 7-2
Heat-seal strip is jammed and can’t move
The lines at the sealing of the
package is not even
Electrothermal belt is loose Tighten belt
The sealing of package is not at Heat-seal pressure isn’t enough
The cooling me is too short Prolong me
The sealing isn't clean
The sealing isn’t rm
The sealing me isn’t suitable
Heat-seal voltage is selected unsuitably
The voltage of network changes
Heat-seal pressure isn’t enough:
(1) Too long aeraon me makes the pressure in vacuum room too
high
Adjust See Table 7-2
(2) Heat-seal strip is jammed or can’t move exibly.
(3) The valve of small gas cell can’t be turned on exibly.
(4) Small gas cell or its pipeline leaks. The coang bre of Teon is
coked or broken.
Replace
The packing quality is bad
The package explodes when air is
drawn up to vacuum.
Bad reset of heat-seal strip and short distance cause non-smooth air
exhaust so as to produce pressure in package.
Make the reset exible through
repair
MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
www.mefe.com.au | [email protected]
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Free AU 1800 669 006
No. Parts List Quanty
1Stainless steel panel 1
2Vacuum pump 1
3Electromagnec Valve 2
4Filter 1
5Outer Covering 1
6Control panel 1
7Sealing Transformer 1
8Working Transformer 1
9Relay 1
10 Breaker 1
11 Inatable Solenoid Valve 1
12 Power Switch 1
13 Inatable Controller 1
14 Fan 1
15 Vacuum Cover 1
9. Parts Breakdown
Part number Descripon Quanty
370-500-68 Vacuum Pump Oil /5lit 5 litres
370 DZ400 1001 Circuit board Main PC Board 1
370 DZ400 1002 Heat Sealing Bar complete 2
370 DZ400 1003 Lid Seal strip / length 1
370 DZ400 1004 Code Silicone Strip 1
370 DZ400 1005 High Temperature Cloth 1
370 DZ400 1006 Airbag 1
8. Spare Parts List
Table of contents
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