Automatic Vertical L Type Sealing and Shrink Wrapping Machine

It's a combined vertical L-bar sealer and shrink tunnel used to seal and heat-shrink-wrap items such as photo frames, picture frames, aluminum/wood products, medical devices, electrical appliances, food and hardware/plastic products using PE or POF film, providing a cost-saving alternative to traditional carton packaging.

Maximum combined packing size (L+H) ≤ 500 mm, (W + 2H) ≤ 430 mm, maximum product height H ≤ 200 mm. Maximum sealing area: 550 × 450 mm. Tunnel internal size: 1500 × 450 × 220 mm.

Designed for PE and POF heat-shrink films. Maximum film width (W) ≤ 550 mm, roll diameter (D) ≤ 250 mm, and maximum roll weight (G) ≤ 35 kg.

Sealer power supply: 220V / 380V, 1/3PH, 50/60Hz, working power 1.8 kW. Shrink tunnel: AC 380/220V 3PH, 50/60Hz, power 12 kW. Compressed air: 6 kg/cm² (approx. 85 psi).

Packaging speed typically ranges from 15 to 30 pieces per minute, depending on product size, operator setup and film characteristics.

It uses an L-type full closed vertical L-bar seal with an aluminum sealing knife coated in DuPont Teflon. This reduces sticking and high-temperature damage, prevents cracking and smoking, yields even seals, and avoids creased or messy sealing lines.

Features include automatic feeding with sensor/time-relay controlled length, automatic film take-up by a reduction motor, built-in PID temperature control for precise seal temperature, PLC control with a 7-inch WEINVIEW touchscreen, and switchable auto/manual modes. It supports unmanned inline operation.

The sealing blade has an automatic protection function to prevent accidental cutting. Standard electrical and safety interlocks are used; operators should always power off and isolate the machine before performing maintenance or blade replacement.

Regularly clean the Teflon-coated sealing knife and conveyor, check and tighten electrical and pneumatic connections, replace worn sealing wire or Teflon strip as needed, lubricate moving parts per the manual, and verify temperature PID and PLC settings. Keep spare consumables (sealing wire, Teflon tape, fuses).

Verify correct PID temperature, check sealing knife condition and Teflon coating, confirm proper film tension and alignment, ensure sensor and time-relay settings match product length, and confirm conveyor and shrink tunnel temperature/speed are set for the film type.

Sealer overall dimensions approximately 1800 × 1200 × 1400 mm (L×W×H); packaged size 1850 × 1300 × 1550 mm. Shrink tunnel machine size 1910 × 720 × 1320 mm. Allow additional clearance for loading, maintenance and ventilation when planning installation.

Yes. The machine is designed for inline operation and can be integrated with upstream/downstream conveyors and production equipment. PLC control and standard interfaces simplify synchronization for unmanned operation.

The tunnel has adjustable conveyor speed (1–15 m/min) and temperature control suitable for PE/POF films. Conveyor load capacity is up to 30 kg. Use proper tunnel temperature and speed settings for the chosen film and product to achieve uniform shrink.

Most suppliers offer installation support, operator training and spare parts packages (consumables like sealing wire, Teflon tape, fuses). Confirm with the vendor for warranty details, lead times and availability of local service and parts.