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Materials and Machine Solution
1. Packaging material and its corresponding seal temperature
Packaging Material Seal Temperature
Paper/Polyethylene, Aluminum/ Polyethylene, Nylon/ Polyethylene About 180°C
Cellophane/ Polyethylene About 170°C
Polypropylene / Polyethylene About 160°C
If your packaging material is not listed as above, please use experiments to find out the seal temperature.
2. Common failures and their solutions
Malfunction Cause Solution
Burst of the packaging film 1. There is loose contact between the two parts of the packaging film, broken trails or large burrs.
2. Circuit fault or circuit looseness of the stepping motor driving the move of the packaging film
3. The proximity switch of the paper feeding electric motor is switched off.
1. Remove the damaged packaging film
2. Check the circuit of the stepping motor
3. Replace the proximity switch
Failure of heat sealing 1. Folds at the seal
2. There is not enough pressure between the heat sealing blocks
3. Too low sealing temperature



1. Adjust the parallelism of the forming device and the heat sealing block
2. Adjust the pressure between the heat sealing blocks
3. Raise the heat sealing temperature
Dislocation of the seal Failure of being parallel of the heat sealing blocks Adjust the parallelism of the heat sealing block
Cut failure of the package 1. The blade being too close to the inner edge
2. The blade being blunt
1. Adjust the position of the blade
2. Replace new blades
The temperature of the heat sealing block cannot reach the temperature setting 1. Damage of the heating pipe
2. Fault of the heating circuit
Replace new heating pipe Check the heating circuit
Out of control of the temperature of the heat sealing block 1. Fault of the thermocouple
2. Fault of the temperature-controlled meter
1. Replace new thermocouple
2. Replace new temperature-controlled meter
Rotation failure of the paper feeding electric motor 1. The tension arm being seized up
2. Damage of the proximity switch
3. Damage of the starting capacity
4. Power off of the circuit breaker or circuit fault
1. Find out the reason of the tension arm being seized up
2. Replace the proximity switch
3. Replace the capacity
4. Check the breaker and the corresponding circuit
Operation failure when charged 1. Incorrect setting of the length of the package
2. Slip of the film in the traction wheel
1. Set the package length properly, the package length should conform with the color code
2. Replace the traction wheel
Rotation failure of the electric motor responsible for pulling the package 1. Circuit fault
2. Proximity switch of the electric motor for pulling the package being switched off
3. Control panel fault
4. Damage of the stepping motor drive
1. Check the corresponding circuit
2. Replace or adjust the proximity switch
3. Replace the control panel
4. Replace the step drive
Failure to stop at the certain place when pulling the package 1. Early pulling of the package 1. Adjust the color code to make the package stop at the right place to be cut
Difference between the packaging weight of the liquid or paste 1. Screw on the piston being loose
2. Inconformity of the density of the packaged liquid or paste
3. Output channel being blocked
4. Dislocation of the rotary valve
1. Tighten the screw on the piston
2. Mix the materials uniformly before packaging
3. Remove the object that blocks the pipe
4. Adjust the position of the rotary valve
Operation failure of the filling equipment 1. Dislocation of the proximity switch of the Y7 motor or damage of the panel and failure to start
2. Damage of the filling equipment motor
1. Adjust the position of the proximity switch or replace the control panel Replace the electric motor drive

Shanghai Siyuan Packing Machinery Co., Ltd.

Add.: No. 18, Tian Jiu Road, Sheshan Town, Songjiang District, Shanghai, China

Tel: +86-21-33734320
Email:
sale01@sachet-machinery.com

Shanghai Siyuan Packing Machinery Co., Ltd.