Products Description
Automatic L Bar Sealing Machine cuts and seals center-fold film around boxes, single products and small cartons before shrinking or collection. The product enters the L-bar area, the knife closes to seal the open sides, and the pack leaves for a shrink tunnel or discharge table. The machine uses a sealing knife, film holder, guide frame, conveyor and safety cover.

Product Parameters
|
Parameter |
Specification |
|
FQL Models |
FQL-450 / FQL-550 / FQL-650 / FQL-750 / FQL-850 |
|
Power Supply Voltage |
AC220V 50Hz |
|
Overall Machine Power |
1.35kW / 1.4kW / 1.45kW / 1.5kW / 1.55kW |
|
Sealing Temperature |
180-300°C for FQL-450/550/650; 180-220°C for FQL-750/850 |
|
Sealing Time |
0.2-1.2s |
|
Film Thickness |
0.012-0.03mm |
|
Packaging Speed |
0-40 pcs/min |
|
Working Air Pressure |
0.5-0.6MPa |
|
Packaging Material |
POF |
|
Maximum Packing Size |
From L+2H≤550, W+H≤350, H≤140mm to L+2H≤950, W+H≤750, H≤150mm |
Product Advantages

The vertical drive sealing structure helps reduce wrinkles and off-center seal lines during L-bar sealing.
The sealing height can be adjusted by handwheel, so product size changes do not always need mold changes.
Film feed length is controlled by electric eye and timer settings to save packaging material.
The machine completes feeding, film sleeving, sealing and cutting with less manual handling.
Safety cut-off protection and alarm functions help operators handle faults during production.
Main Applications
It is used for cartons, boxed products, stationery, printed packs, daily-use goods and small retail packages.
The machine is suitable when a product needs a clean POF film cover before heat shrinking.
When a tunnel is connected, outlet height and transfer distance should match the next section.

Quality Check
- We check sealing temperature, sealing time, knife return and safety-cover response.
- The first finished sample is checked for straight corner seals and smooth film feeding.
- Tools and loose parts are counted before the machine is packed.
FAQ
Q: What film thickness can Automatic L Bar Sealing Machine use?
A: The catalogue range is 0.012-0.03mm. The real film should be tested with the product.
Q: What speed is shown for the FQL series?
A: The catalogue shows 0-40 pcs/min, depending on product size and film behavior.
Q: Can it work with a shrink tunnel?
A: Yes, if outlet height, tunnel opening, transfer direction and workshop space are confirmed.
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