Working Principle And Operation Of Dq240vst Tabletop Vacuum Skin Packaging Machine

For food processors seeking extended shelf life, the DQ240VST desktop vacuum skin packaging machine operates through two steps: (1) vacuum evacuation removes oxygen from the chamber, and (2) heated film softens and conforms to the product contour, forming a tight seal to the tray flange. This process reduces oxidation and bacterial growth while preserving texture and moisture. The compact unit handles trays up to 280×200×50 mm at 2 cycles per minute, weighing 36 kg for benchtop installation.

Vacuum Skin Packaging Principle

Oxygen Removal and Seal Formation

• The skin vacuum packaging machine（DQ240VST） evacuates air from the chamber, removing oxygen—the primary agent of food spoilage.

• Heated upper film softens, drapes over the product, and seals to the tray flange.

• Close conformity eliminates air pockets, reducing oxidative reactions that degrade color, texture, and nutritional value.

• The 10 m³/h vacuum pump ensures rapid evacuation for consistent results.

Film Conformation and Barrier Protection

• During the vacuum skin pack process, the film forms tightly around the product, reducing headspace.

• The resulting airtight seal provides a barrier against moisture loss and external contaminants.

• This conformation protects delicate items like fresh meat, seafood, and produce from physical damage.

Technical Specifications

Applications and Product Suitability

• The vacuum skin machine processes fresh meat, poultry, seafood, fruits, vegetables, and ready-to-eat meals.

• VSP format provides a transparent, contour-hugging package that showcases product appearance.

• Tight film adhesion reduces purge loss (exudate), maintaining product weight and presentation.

• The compact footprint suits retail, test kitchens, and craft food producers.

Operational Workflow

1. Place product in a rigid or semi-rigid tray (max. 280×200×50 mm).

2. Position the tray on the machine platform.

3. Lower the upper chamber; vacuum evacuation begins.

4. Heated film (max. 250 mm width) softens and conforms to product shape.

5. Film seals to tray flange, completing the package.

6. Chamber vents; remove the finished package.

Maintenance and Cleanability

• The vacuum skin packing machine features a stainless steel main structure for corrosion resistance and hygiene.

• The sealing plate design simplifies cleaning if film melts and adheres.

• The visible vacuum gauge enables easy monitoring of pump performance.

• Online support and training materials ensure operators maintain consistent performance.

Engineering Value for Food Processing

The vacuum skin pack machine delivers extended shelf life through superior oxygen barrier properties. Reduced headspace minimizes product dehydration and weight loss. The compact 490×330×430 mm footprint suits limited production floor space. The 2-cycle-per-minute throughput supports small to medium batch operations.

Proper machine setup ensures optimal VSP results. Match film type to product requirements and verify tray compatibility.

1. Confirm tray dimensions fit within 280×200×50 mm maximum.

2. Select film with appropriate gas barrier properties for shelf-life targets.

3. Adjust vacuum time and temperature based on product type.

4. Calibrate seal pressure to ensure complete flange adhesion.

These measures ensure consistent, high-quality skin packaging. Properly specified vacuum skin packaging machines deliver extended shelf life, reduced waste, and superior product presentation in food processing applications.

DQ240VST vacuum skin packaging machine from Dasen factory, is suitable for fresh meat, fruits and vegetables, seafood and other foods. There are different models of machines, and stores or factories can choose them according to their needs. The equipment need less room, and can be easily operated. The main structure of the product is made of stainless steel, and the vacuum chamber is anodized with 6061, which is safe and sanitary. By pumping dry air through the machine, the food can be kept in a vacuum state to prolong the fresh-keeping time. The skin-fitting effect is beautiful and practical, so as to prompt consumers purchasing. According to different production requirements, Zhejiang Dasheng Intelligent Equipment Co., Ltd. can tailor-make the skin-fitting packaging equipment, and help distributors sell the machines to end users.

* Prolong shelf life, outlook and taste retention. 

* Real appearance display in supermarket, more attractive to consumers.

* Can be heated in microwave oven.

* Real-time fault indication, enable quick problem solving and after-sales service.

* Stainless steel 304 and anti-corrosive aluminum construction.

* Teflon coated sealing plate, easy maintenance if film melt and sticked. 

* Vacuum pump built-in and visible adjustment on vacuum gauge.

* No need specified mold, while film cutting by hand.

* Safe and hygienic, CE certification.

* Supply training video and after-sales service online with quick response.

* Voltage/plug type can be customized as required. BUSCH vacuum pump optional.

* Package material: trays made from PP / PET, and we could supply tray+film according to your size and print if needed.

Expertise sales manager ready for helping to prompt your business:

We are a reliable manufacturer with good quality and ODM OEM business are welcome!

If you order more than 5pcs, there will be more competitive prices and marketing support.