Design Features And Importance Of The Dq260t Modified Atmosphere Packaging Machine

The DQ260T modified atmosphere packaging machine can achieve a gas replacement rate of ≥99% when gas flow, chamber sealing, tray geometry, and cycle timing are properly matched. The process depends on removing ambient air, introducing the selected gas mixture, stabilizing the atmosphere, and sealing the package without leakage.

How ≥99% Gas Replacement Is Achieved

Gas replacement efficiency depends on the amount of residual air left inside the tray after flushing. A map packaging machine must create stable gas movement while limiting air leakage around the chamber, tray, and film.

🔹 Chamber sealing: A sealed chamber prevents outside air from entering during gas exchange.

🔹 Gas flow: Controlled flow allows the gas to reach the full tray cavity.

🔹 Replacement volume: Sufficient gas volume reduces residual oxygen.

🔹 Cycle timing: Consistent flushing time keeps package conditions uniform.

The ≥99% target should therefore be treated as a complete process result rather than the output of one component.

DQ260T Technical Parameters

Published specifications for the DQ260T list a maximum film width of 260 mm and film diameter of 200 mm. The machine operates at 5–6 cycles/min, with 1.1 kW total power and 0.6–0.8 MPa working air pressure.

The listed specifications also include tray sizes of 310 × 220 × 60 mm for one-out operation and 220 × 140 × 60 mm for two-out operation.

Gas Replacement and Sealing Control

A map sealing machine must coordinate gas flushing and film sealing. Even when the target atmosphere is reached, an incomplete seal can allow oxygen to enter after packaging.

The process follows five stages

1. Tray positioning: The tray is placed accurately inside the mold.
2. Atmosphere exchange: Ambient air is displaced with the selected gas.
3. Gas stabilization: The preset replacement cycle is completed.
4. Film sealing: Heat and pressure form the package seal.
5. Film cutting: The sealed package is separated from the roll.

The DQ260T uses a touch-screen control system for sealing temperature, sealing time, film feeding, and operating settings.

Why Tray Geometry Matters

A map tray sealing machine must match the mold to the tray dimensions. Excessive empty space increases the volume that must be flushed, while poor positioning can disturb gas circulation.

The mold should therefore maintain stable tray placement and consistent sealing contact. A suitable cavity geometry also supports repeatable film positioning during continuous operation.

Sensors and Process Stability

A map tray sealer depends on accurate film feeding and tray positioning. Sensors can monitor film movement and support consistent feeding from one cycle to the next.

The published configuration specifies stainless steel and anti-corrosive aluminum construction, a Teflon-coated sealing plate, automatic film feeding, and customized molds for different tray formats.

Practical Checks for High Replacement Efficiency

Several operating checks can reduce process variation:

• Confirm stable gas supply during each cycle.
• Keep the sealing surface clean and correctly aligned.
• Match the mold to the actual tray dimensions.
• Maintain consistent film tension and feeding.
• Keep pneumatic pressure within the specified range.
• Measure residual oxygen instead of relying on package appearance.

A modified atmosphere packaging machine performs consistently when gas exchange, sealing, tray geometry, and control parameters remain synchronized.

Design Priorities for Consistent Packaging

The DQ260T combines adjustable sealing parameters, automatic film feeding, compact construction, and different mold configurations. Its operating result depends on how these elements interact with the selected tray, film, gas mixture, and cycle settings.

For different tray sizes or production requirements, the mold, gas flow, sealing temperature, dwell time, and pneumatic conditions should be reviewed together. This approach can reduce unnecessary gas consumption and maintain more consistent package quality across repeated cycles.

DQ260T table top MAP tray sealing machine Dasen manufactured, is widely used for food distribution in supermarkets such as fresh meat, cooked meat products, fish, poultry, shellfish, fruits, coffee, tea, vegetables, bread, etc. Modified atmosphere packaging has the characteristics of keeping food quality, freshness, color, shape and taste, and is popular in European and American markets.

* Molds customized for the popular tray sizes in your territory for your marketing penetrating, with free charge.

* Modified atmosphere packaging to extend shelf life, outlook and taste retention.

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

* Stainless steel and anti-corrosive aluminum construction.

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

* Sealing temp/time, film and other parameters can be easily adjusted on touch screen controller. 

* Easy to operate, and neat profile cutting and sealing of film, pneumatic drive.

* Precise and automatic film feeding with photoelectric and disc sensors.

* Safety and sliding mold design, and easy changeover without tools.

* Safe and hygienic, CE certification.

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

* Voltage/plug type can be customized as required. WITT gas mixer optional.

* Package material: trays made from Degradable pulp box/ PP / PET/Aluminum foil, 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 Chinese 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.