SF-5030LG Premium Heat Shrink Packaging Machine

Key Features

1. Bottom-mounted 3D circulating hot air system: The SF-5030LG high-end heat shrink tunnel features a patented bottom-mounted directional airflow duct. The airflow volume and direction at the bottom are independently adjustable, allowing heat to circulate and reuse within the furnace cavity, significantly improving heat energy utilization. This ensures uniform heating of the product's upper and lower surfaces, completely solving common problems in ordinary tunnels such as insufficient film shrinkage, wrinkles, whitening, and poor edge adhesion. The equipment is equipped with double-layered imported high-temperature resistant insulation curtains to firmly lock in the high temperature inside the furnace, significantly reducing heat loss and reducing electricity costs during long-term continuous production. The machine offers two standard furnace cavity sizes: 1500mm and 2000mm. The internal cavity has a uniform 500×300mm passage size, a conveying speed range of 0–15m/min, a maximum heating power of 18.5kW, and a temperature control range of 0–230℃. Thin environmentally friendly POF film, thickened PVC, and PET heat shrink film can all be matched with corresponding temperature and conveying parameters to meet the speed requirements of different production lines.

2. Openable and visible furnace body for convenient and labor-saving maintenance: The front of the furnace body features a large, transparent, high-temperature resistant observation window, allowing operators to directly observe the entire heat-shrink molding process and make real-time adjustments to temperature, airflow, and conveyor speed. This enables quick correction of defects such as bubbling and incomplete shrinkage. The furnace top utilizes an innovative pneumatic spring-loaded flip-top structure, allowing the furnace chamber top to be fully opened without disassembling sheet metal or using tools. The internal heating pipes, air ducts, and conveyor rollers are unobstructed, significantly improving the efficiency of daily dust cleaning, parts replacement, and troubleshooting, and reducing production line downtime. The overall machine features a modular red and gray split sheet metal design with evenly distributed heat dissipation mesh, balancing heat dissipation performance and industrial aesthetics.

3. Wear-resistant and scratch-resistant dedicated conveyor roller assembly, adaptable to dual working conditions: The outer layer of the conveyor rollers is fully covered with imported high-temperature resistant fiber protective sleeves, possessing advantages such as high temperature resistance, high wear resistance, non-stick film, and no deformation. It will not scratch printed color films, smooth paint surfaces, electronic casings, and other products with high appearance requirements. The roller structure supports free switching between two usage modes: fixed rollers are used for gift boxes and digital products to prevent surface friction scratches, while rotating rollers are used for cartons, hardware, and hard workpieces to improve conveying smoothness. The entire machine adopts a chain drive structure, ensuring stable load-bearing capacity and allowing for long-term continuous heavy-load operation. The overall height of the roller conveyor is standardized at 825±25mm, seamlessly connecting to all fully automatic side sealing machines and semi-automatic cuff sealing and cutting machines on the market, without requiring modification to the production line.

4. Complete Electrical Control Assembly from Leading International Brands, CE Compliant, Safe and Stable: All electrical components are sourced from globally renowned brands, holding CE, SGS, and ISO9001 triple international certifications, allowing export to over 100 countries worldwide without qualification barriers. Schneider Electric (France) provides frequency converters, circuit breakers, and thermal overload relays, enabling stepless and precise control of conveyor speed; Omron (Japan) high-precision temperature controllers monitor furnace temperature in real time with minimal control error; Yangming (Taiwan) solid-state relays, Siemens (Germany) switches, and intermediate relays ensure circuit stability; the circulating fan and conveyor motor are explosion-proof, with an IP54 protection rating, supporting 380V three-phase industrial power supply, compatible with domestic and international factory power supply standards. The equipment features multiple safety interlocks for over-temperature, motor overload, and emergency stop protection, automatically shutting down in case of abnormalities to avoid safety hazards such as burns from high temperatures and short circuits.

5. Long-lasting and energy-saving heating elements, broad compatibility with multiple films: The heating element inside the furnace uses a one-piece molded 304 stainless steel heating tube, which is resistant to high temperatures and water vapor corrosion, and has a service life far exceeding that of ordinary iron heating tubes. It features rapid heating and uniform heat release. The equipment is compatible with three mainstream types of heat shrink films on the market: food-grade environmentally friendly POF film, low-cost industrial PVC film, and high-hardness PET film. Switching film materials requires no modification to the internal structure of the equipment, making it suitable for packaging standards in multiple industries such as food, daily chemicals, hardware, and electronics. The machine is equipped with omnidirectional casters and adjustable support feet, allowing for flexible relocation and precise leveling in confined spaces. The manufacturer provides a one-year warranty on the entire machine, free replacement of parts for non-human-caused damage, and lifetime remote technical guidance and parts supply services.

Application Scope: The SF-5030LG hot air shrink tunnel is a dedicated back-end heat shrink equipment for production lines. It must be combined with a fully automatic side sealing machine and a semi-automatic cuff sealing and cutting main unit to form a complete automated packaging production line. It is suitable for various regular rectangular and short cylindrical goods with a width ≤500mm and a height ≤300mm.

Widely covering bulk packaging scenarios across multiple industries: food industry (snacks, bottled beverages, dairy products, etc.); daily chemical industry (cosmetic gift boxes, personal care sets, etc.); pharmaceutical boxes, medical device packaging; books, magazines, photo frames, stationery, and creative products; 3C digital accessories, small electronic components; small hardware tools, decorative panels, small plastic parts, etc. The equipment can perform both single-item independent wrapping and multi-item combined sleeve packaging. The film completely wraps the goods, providing all-around dustproof, moisture-proof, rustproof, and protection against damage during transportation. The transparent film also enhances the product's display quality in supermarkets. The 1500mm short furnace is suitable for small to medium-sized low-speed semi-automatic workshops, while the 2000mm extended furnace is suitable for large and medium-sized high-speed fully automatic production lines. The compliant explosion-proof electrical control configuration can also be used in some production workshops with dust or low-risk explosion-proof requirements, catering to the long-term mass production needs of domestic and export factories.