Product Overview
The sealing machine operates on the principle of electromagnetic induction: it instantly generates high temperature on the aluminum foil placed on bottle mouths. As the heat transfers downward, the part of the bottle mouth in contact with the aluminum foil melts instantly, fusing the aluminum foil to the mouth to achieve a tight seal.
Products sealed with aluminum foil benefit from excellent moisture resistance, mildew resistance, extended shelf life, and anti-counterfeiting properties. It is widely used in industries including pharmaceuticals, pesticides, beverages, condiments, food, daily chemicals, and lubricants.
Equipment Features
- Equipment type: Fully automatic electromagnetic induction aluminum foil sealer.
- Control system: Transistor modular integrated circuit.
- Voltage stabilizing device: Reduces the impact of power grid fluctuations on sealing quality.
- Cooling system: Oversized radiator and oversized condenser with internal circulation water cooling system.
- Flat-plate induction heating head and unique water-cooled high-frequency resonant capacitor, meeting customers' sealing requirements for a wide range and variety of bottle caps.
- Sealing effect: Even if there is a small amount of residual liquid on the bottle mouth, it does not affect the sealing effect.
Functional Features
- Double-sided wired thickened control board, surge absorption circuit, and optocoupler isolation to reduce interference. It is equipped with soft start, filter circuit, and full-bridge rectification and inverter controllable circuit.
- Adopting the 8th generation 42F series switching devices from Advanced Semiconductor Company (USA), it features higher power, faster switching speed, and lower loss, ensuring more stable performance of the equipment.
- The main circuit adopts full-bridge rectification and inverter circuit as well as solid-state integrated circuit technology, making the system work more reliably.
- The output circuit uses negative feedback technology, enabling the output power to automatically increase or decrease with changes in the load, thus ensuring the sealing effect.
- The main circuit is designed with overvoltage, overcurrent, overheating, and water shortage protection, as well as a light alarm circuit, which improves the service life of the entire machine.
- The oversized radiator and oversized condenser cooling system ensures the machine can work reliably for long hours and continuously.
Product Details

Product Parameters
| Model |
LP12000 |
| Applicable bottle neck diameter |
20—65mm (customization available for non-standard sizes) |
| Sealing speed |
50-100 bottles/min (tested with 40mm diameter; actual rate varies by bottle type) |
| Adjustable height of induction head |
800-1260mm (bottle height + conveyor belt height) |
| Main unit dimensions (L×W×H) |
620mm×460mm×1150mm |
| Induction head dimensions (L×W×H) |
670mm×120mm×95mm |
| Power |
220V 50HZ |
| Overall dimension (mm) |
1600×1380×2100 |
| Weight (kg) |
60 |
Product Application
This fully automatic electromagnetic induction aluminum foil sealer is mainly applied in scenarios requiring aluminum foil sealing for bottle mouths. It is widely used in industries such as pharmaceuticals, pesticides, beverages, condiments, food, daily chemicals, and lubricants, catering to the aluminum foil sealing needs of various products in these industries, especially suitable for long-term continuous production lines.
FAQ
1. What is the applicable bottle mouth diameter range? Can it be customized for larger or smaller sizes?
The standard applicable bottle mouth diameter is 20—65mm; customization is available for sizes beyond this range.
2. What is the sealing speed? What factors affect the speed?
Tested with a 40mm diameter bottle mouth, the sealing speed is approximately 50-100 bottles per minute; the actual speed may vary slightly depending on factors such as bottle mouth diameter, bottle material, and production environment.
3. What role does the water cooling system play? Why is "internal circulation water cooling" emphasized?
The equipment is equipped with an internal circulation water cooling system consisting of an oversized radiator and condenser, whose core function is to efficiently control the equipment temperature. This ensures no overheating during long-term continuous operation, maintaining stable sealing performance. The internal circulation design reduces reliance on external water sources, enhancing cooling efficiency and operational reliability.
4. Will a small amount of residual liquid on the bottle mouth affect the sealing effect?
No. The sealing design ensures a tight seal even with a small amount of residual liquid on the bottle mouth, without compromising sealing quality.
5. What protection functions does the equipment have? How are abnormalities indicated?
The main circuit is designed with overvoltage, overcurrent, overheating, and water shortage protection functions, combined with a light alarm circuit. When such abnormalities occur, the alarm light will illuminate to promptly alert operators, effectively extending the equipment's service life.
6. Is the equipment sensitive to grid voltage fluctuations? How to ensure stable sealing quality?
The equipment is equipped with a voltage stabilizing device to reduce the impact of grid fluctuations on sealing quality. Additionally, negative feedback technology is adopted, where output power automatically adjusts with load changes, further ensuring stable sealing results.
7. Can the equipment meet the sealing needs of various bottle caps?
Yes. It uses a flat-plate induction heating head and a unique water-cooled high-frequency resonant capacitor, capable of adapting to the sealing requirements of a wide range and variety of bottle caps, offering strong flexibility.