PE Film Heating Tunnel Furnace

The PE film heating tunnel furnace is a high-efficiency continuous industrial heating and packaging shrinkage equipment.This equipment is specially designed for heating and shrinking polyethylene (PE) shrink film. It adopts a tunnel-type structure and uses circulating hot air to heat packaged products passing through the conveyor belt in an all-round and uniform manner, allowing the PE film to shrink quickly and tightly wrap around the product surface.It is widely used in large-scale production lines and features a high level of automation, precise temperature control, energy saving, and high efficiency.

Product Applications

Multipack Packaging:

Used for combined bundling packaging of multiple products such as beverages, mineral water, and beer.

Logistics Protection:

Used for outer wrapping and tightening packaging of large goods such as building materials, pallets, and cartons, providing dustproof and moisture-resistant protection.

Product Appearance Enhancement:

Allows PE shrink film to tightly fit the product shape, improving appearance quality and market competitiveness.

Pallet Wrapping:

Combined with automated production lines to achieve heat-shrink fixing of large palletized goods.

Product Parameters

Product Features

Hot Air Circulation:

The dual-fan and multi-air-duct design ensures uniform heat distribution, achieving smooth shrinkage without wrinkles.

Precise Temperature Control:

The equipment adopts SSR solid-state relay combined with PID temperature control instruments, achieving temperature control accuracy of ±1℃.

Variable Frequency Conveying:

The conveyor speed is continuously adjustable, allowing easy integration with various automated packaging production lines.

High-Efficiency Thermal Insulation:

The furnace body adopts high-density aluminum silicate fiber cotton insulation. The outer shell remains cool to the touch, saving energy and reducing power consumption.

Durable Conveyor System:

Optional thickened chains or high-temperature resistant Teflon mesh belts provide strong load-bearing capacity and excellent wear resistance.

FAQ

Q1: Can this tunnel furnace heat POF or PVC film?

A1: Yes. Although it is specially designed for PE film, it can also be used for other shrink films such as POF and PVC by adjusting the variable frequency conveyor speed and PID furnace temperature.

Q2: How should the appropriate furnace chamber size be selected according to the product?

A2: The width and height of the furnace chamber should be at least 100 millimeters to 150 millimeters larger than the maximum packaged product size (including the PE film) in each direction, ensuring smooth hot air circulation and preventing damage to the film surface.

Q3: Why does the PE film partially melt or develop holes after heating?

A3: This is usually caused by excessive furnace temperature, excessively slow conveyor speed, or prolonged direct exposure to hot air in a specific area. The problem can be solved by reducing the furnace temperature or increasing the conveyor speed.

Q4: How long does the equipment need to preheat before production after startup?

A4: Under normal room temperature conditions, the equipment usually requires approximately 15 to 20 minutes to heat from startup to the preset PE film shrinking temperature, which is generally between 140℃ and 180℃.

Q5: What types of materials are available for the conveyor belt of the heating tunnel furnace?

A5: There are mainly three types:

Teflon mesh belt: Suitable for small and lightweight products.

Stainless steel mesh belt: Wear-resistant and corrosion-resistant.

Chain-type roller conveyor: Suitable for heavy products such as beverages and pallets.