Automatic L-Shaped Sealer with Shrink Tunnel (2025) | Monoblock Heat Shrink Wrapping Machine

Automatic L-Shaped Sealer with Shrink Tunnel – Monoblock Heat Shrink Wrapping Machine (2025)

The Automatic L-Shaped Sealer is a fully integrated monoblock heat shrink wrapping machine designed for high-efficiency packaging with LDPE flat plastic film. Manufactured in 2025, this advanced system combines L-bar sealing and a high-performance shrink tunnel in a single automated unit.

Engineered for industrial packaging environments, the machine ensures secure sealing, uniform shrink wrapping, and reliable continuous operation.

Film compatibility

LDPE flat plastic coil

Maximum width: 680 mm

Maximum external diameter: 350 mm

Film thickness range: 35 – 100 microns

Automatic upper and lower film unwinding

Removable lower coil carriage for easy film loading.

Sealing system

Hot bar sealing – 700 mm pneumatic drive

Integrated safety system

Thermo-regulated sealing bar

The machine does not operate automatically until the correct sealing temperature is reached.

Safety sensor

Stops the sealing bar if a product becomes trapped.

Pneumatic package pressing after sealing

Ensures compact and secure wrapping.

Maximum product height: 380 mm

Shrink tunnel

Length: 1,500 mm

Mouth opening: 600 × 400 mm (H)

Insulated with mineral wool

Heating system: 6 × 3,500 W shielded resistors

Forced ventilation with air recirculation

External air flow adjustment

Thermo-regulated temperature control with alarm

Automatic shutdown if tunnel temperature drops below 80°C

Wire mesh conveyor belt driven by gear motor

Motorized feed outlet 400 mm conveyor controlled by inverter

Infeed system

Motorized 90° feed belt – 1.5 m length

Pneumatic pre-assembly pusher controlled by variator

Motorized mesh transport inside the tunnel

Control and automation

Siemens PLC with OP7 display

Parameter setting and self-diagnosis system

Video-acoustic alarm

Alerts for film end, film breakage, or unsealed packages.

Control panel integrated into machine frame

Security and protection doors included

Installed power: 24 kW

Industrial applications

Food multipacks

Beverage bundles

Consumer goods packaging

Industrial products

Cosmetics and boxed items