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Global Sealing SystemsGuangzhou Yijia Packaging Technology Co., Ltd.
+86 156 0300 0900

Solution topic

How to Choose Custom Container Sealing, Sample Testing and Custom Tooling? Start With Rim, Film Material and Sample Verification

For non-standard container sealing, first check the rim, film material, and sample verification. You can send photos and dimensions first, and we will judge the sample test, custom tooling, and sealing route to avoid choosing the wrong path at the start.

  • Non-standard container sealing should not be chosen by machine name alone. First confirm rim shape, film material, and whether sample testing is needed, then judge tooling, fixtures, and the sealing route. If details are incomplete, send photos first and we can judge the direction.
  • Non-Standard Container Sealing, Sample Testing and Custom Fixture Selection

First Break the Requirement Into Key Points

My container is not a standard round or square bottle, and both the sealing film and lid are customized. How should sample testing and fixtures be confirmed?

First determine the packaging route

Non-standard container sealing cannot be selected only by machine name. First confirm rim shape, film material, and whether sample testing is needed, then judge tooling, fixtures, and sealing route. If the information is incomplete, photos can be sent first so we can judge the direction.

Desktop Standalone Heat-Press Sealing Route

Suitable for small-batch, multi-size, and sample-testing non-standard container sealing, where the container rim is flat and the film is heat-sealable. Advantage: fast mold change and lower tooling cost, suitable for verifying sealing effect and film compatibility. Limit: capacity is limited by stand-alone rhythm; connected production needs separate evaluation. Not recommended when high-speed continuous production or MAP is required. Equipment route: the SGP-03 small-diameter cup sealer, desktop multi-compartment lunch box sealer, and desktop roll-film tray sealer can handle sampling and small-batch sealing, with tooling customized according to the container rim.

Rotary Multi-Station Sealing Route

Suitable for medium capacity non-standard containers that need automatic cup dropping or box loading, where rim shape is consistent and film material is stable. Advantage: multi-station continuous operation gives higher capacity than desktop machines and can integrate filling, sealing, and discharge. Limit: tooling and change parts are customized for the container, so changeover takes longer. Not recommended when container specifications change frequently and each batch is small. Equipment route: the rotary multi-station sealer can handle multi-size container sealing and is configured according to mold cavity count and container dimensions.

MAP sealing route

Suitable for non-standard trays, meal boxes, and cooked food boxes that need shelf-life extension, vacuuming, or nitrogen flushing. Advantage: gas replacement helps suppress microbial growth and can significantly extend refrigerated shelf life. Limit: MAP film and gas ratio testing are needed, and tooling plus sealing parameters must be confirmed according to the container and film. Not recommended when the product is sold the same day or freshness preservation is not needed. Equipment route: the tray MAP sealing machine can handle MAP sealing for trays and meal boxes, with tooling customized according to container dimensions and film material.

Recommended Equipment Route: Container and Film Material Confirmation

For non-standard containers, rim shape, dimensions, and film heat-sealability must be confirmed first before tooling and sealing parameters can be matched.

Recommended Equipment Route: Sample Testing

Use the actual container and film to test sealing effect, seal strength, and easy-peel performance to verify that the route is feasible.

Recommended equipment route: custom tooling and fixtures

Non-standard containers need dedicated tooling to confirm sealing pressure and accurate position. Tooling is made according to sample dimensions.

Recommended Equipment Route: Small-batch or Continuous Production

After sample testing is verified, choose a rotary multi-station machine or MAP connected line according to the target capacity.

Route comparison

01Desktop Standalone Heat-Press Sealing Route
  • Suitable for small-batch, multi-size, and sample-testing non-standard container sealing, where the container rim is flat and the film is heat-sealable.
  • Fast mold change and lower tooling cost, suitable for verifying sealing effect and film compatibility.
  • Capacity is limited by stand-alone machine rhythm; connected production needs separate evaluation.
  • If high-speed continuous production or MAP freshness packaging is required, a desktop stand-alone machine alone is not recommended.
  • The SGP-03 small-diameter cup sealer, desktop multi-compartment lunch box sealer, and desktop roll-film tray sealer can handle sampling and small-batch sealing, with tooling customized according to the container rim.
02Rotary Multi-Station Sealing Route
  • Suitable for medium capacity non-standard containers that need automatic cup dropping or box loading, where rim shape is consistent and film material is stable.
  • Multi-station continuous operation provides higher capacity than desktop machines and can integrate filling, sealing, and discharge.
  • Tooling and change parts are customized for the container, so changeover takes longer.
  • If container specifications change frequently and each batch is small, a rotary machine is not recommended first.
  • The rotary multi-station sealer can handle multi-size container sealing and is configured according to mold cavity count and container dimensions.
03MAP sealing route
  • Suitable for non-standard trays, meal boxes, and cooked food boxes that need shelf-life extension, vacuuming, or nitrogen flushing.
  • Gas replacement helps suppress microbial growth and can significantly extend refrigerated shelf life.
  • MAP film and gas ratio testing are needed, and tooling plus sealing parameters must be confirmed according to the container and film.
  • If the product is sold the same day or freshness preservation is not needed, adding MAP cost is not recommended.
  • The tray MAP sealing machine can handle MAP sealing for trays and meal boxes, with tooling customized according to container dimensions and film material.

Core process

01Container and Film Material Confirmation
02Sample Testing
03Custom tooling and fixtures
04Small-Batch or Continuous Production
05Product and Sample Confirmation
06Container and Packaging Material Confirmation

Associated Equipment / Consumables

Send samples and capacity requirements for a clearer solution

Non-standard container sealing should not be chosen by machine name alone. First confirm rim shape, film material, and whether sample testing is needed, then judge tooling, fixtures, and the sealing route. If details are incomplete, send photos first and we...

01Packaging container
02Core process
03Equipment needed
04Materials
05Capacity and automation
06Sample details
Materials

The sealing film must heat-seal properly with the container material. Different films,... / The flatness of a non-standard container rim affects sealing integrity. Oil or moisture... / The dimensional tolerance of custom tooling must match the actual container dimensions....

Sample details

Please provide photos or videos of the container, including close-ups of the rim. We ca... / Please measure the container rim outside diameter, inside diameter, and height. These d... / Please provide sealing film samples or confirm the film type, such as aluminum foil, ea...

Inquiry

Online Inquiry Form

Please specify container type, sealing material, speed target, sample status, and target market.

Sample details

01Preparation material 1

Photos and dimensions can first determine container positioning, mold direction, and whether sample testing is needed.

Please provide photos or videos of the container, including close-ups of the rim. We can first judge rim flatness and tooling direction.
02Preparation material 2

Photos and dimensions can first determine container positioning, mold direction, and whether sample testing is needed.

Please measure the container rim outside diameter, inside diameter, and height. These dimensions affect tooling and sealing parameters.
03Preparation material 3

Film material and liner affect sealing temperature, pressure, dwell time, and feeding method.

Please provide sealing film samples or confirm the film type, such as aluminum foil, easy-peel, or composite film. Film material decides heat-sealing temperature and pressure.
04Preparation material 4

Capacity target determines single machine, semi-automatic, or continuous inline configuration, and also affects the quotation range.

Please provide the target capacity, such as pieces per hour or per day. This decides whether to use a desktop machine, rotary machine, or connected line.
05Preparation material 5

Photos and dimensions can first determine container positioning, mold direction, and whether sample testing is needed.

If the information is not complete, send available photos and dimensions first. We will judge the route first and then provide a confirmation checklist.

Common selection mistakes

01Only asking for the machine name without container details
02Ignoring Rim Flatness
03Skipping sample testing and buying a large machine directly
04Assuming one machine can handle all containers
05Not providing film samples

Common questions

01Does a non-standard container always need custom tooling?

Most non-standard containers need tooling made according to the rim. Tooling cost is usually manageable, and it helps reduce risk by keeping sealing position and pressure accurate.

02How many samples are needed for testing?

We recommend providing 5-10 containers and a small amount of film material to adjust sealing parameters and verify sealing effect.

03Can a desktop machine be used for small-batch production?

Yes. A desktop machine is suitable for small batches around 300-800 pieces per hour and is convenient for changeover.

04Must the sealing film be supplied by you?

Not necessarily, but the film must be heat-seal compatible with the container. Film samples are recommended for compatibility testing.

05How can we check whether the seal is leakproof?

After sample testing, water filling or air-tightness tests can be used for verification. Non-standard containers especially need physical sample testing.

06Can the line be upgraded for higher capacity later?

Yes. During sample testing, it is better to reserve space and interfaces so the system can later be upgraded to a rotary machine or conveying line.

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