Views: 0 Author: Site Editor Publish Time: 2026-09-03 Origin: Site
Food trays are widely used for fresh produce, meat, seafood, bakery products, ready meals and takeaway food. Although many trays look simple, their production requires stable heating, accurate forming, clean trimming and consistent stacking.
Choosing the right thermoforming machine for food trays depends on several factors, including tray dimensions, material type, sheet thickness, forming depth, mold layout, production volume and downstream packaging requirements.
This guide explains the main types of food trays, compares common thermoforming materials, describes the production process and provides a practical checklist for selecting a machine for commercial food packaging production.
Different food products require different tray shapes, depths and material properties. The tray design directly affects mold structure, forming conditions and machine configuration.
Fresh produce trays are commonly used for fruits, vegetables, mushrooms and other products that require visibility and ventilation. These trays may use shallow cavities, ventilation openings or multiple compartments.
The machine should provide consistent forming across the entire sheet so that each tray maintains the same dimensions and stacking height.
Meat and seafood trays often require strong edges and sufficient rigidity for storage, transportation and display. Some designs may also need compatibility with lidding film or vacuum-sealing processes.
A suitable food tray thermoforming machine should be able to produce consistent cavity depth and stable sealing areas. The final machine selection should consider the tray’s material, thickness, shape and sealing method.
Bakery trays and ready-meal containers may include multiple compartments to separate different foods. These trays can have deeper cavities, narrow corners or complex internal structures.
For multi-compartment products, mold ventilation and material distribution are particularly important. Poor forming conditions may result in thin corners, incomplete details or uneven wall thickness.
Takeaway trays are designed for convenience, transport and quick handling. They may be used for prepared meals, snacks, desserts and catering products.
A takeaway tray forming machine should support the required production volume and allow efficient cutting and stacking. For high-volume disposable packaging, automated feeding, trimming and stacking can help reduce manual handling.
Some thermoforming systems can produce food container bases, lids and clamshell-style packages. These products may require transparent materials, accurate edges and reliable matching between the lid and base.
The mold layout should be planned according to the final product dimensions, cavity spacing and required output per cycle.
Material selection affects transparency, stiffness, impact resistance, forming behavior, heat performance and overall packaging cost. Common materials for food tray production include PP, PET, PS and BOPS.
PP is often selected for food packaging products that require flexibility, durability and resistance to certain chemicals or heat conditions.
A PP food tray machine must provide suitable heating and forming control for the selected PP sheet. Processing conditions may vary according to the sheet formulation, thickness, additives and product design.
PP may be considered for:
Takeaway food containers
Reusable-style food packaging
Ready-meal trays
Microwave-related packaging applications
Multi-compartment food containers
The final material choice should always be confirmed according to the food product, storage conditions and customer requirements.
PET is commonly considered when transparency, rigidity and product visibility are important. A PET food tray machine should provide stable heating because PET sheet must be heated evenly before forming.
PET may be used for:
Fresh produce containers
Bakery packaging
Transparent food trays
Deli containers
Clamshell-style packaging
PET and PVC have different characteristics, and their forming performance depends on sheet formulation and processing conditions. For more information about these materials, manufacturers can also review the advantages of using PET and PVC in thermoforming.
PS is known for its rigidity and forming suitability in many disposable packaging applications. It may be used for food trays, containers and packaging inserts where stiffness and cost efficiency are important.
PS is often suitable for shallow or medium-depth tray designs. However, product geometry, sheet thickness and mold layout must still be reviewed before selecting equipment.
BOPS can be considered for certain transparent packaging applications where clarity and rigidity are important. Its forming performance depends on the sheet specification, thickness and heating profile.
When planning a BOPS project, ask the machine supplier to confirm:
Supported sheet thickness
Required heating temperature
Forming method
Mold compatibility
Production speed
Cutting and stacking requirements
The most suitable material is not determined by cost alone. Product appearance, rigidity, sealing, storage conditions and end-use requirements should also be considered.
Before purchasing a plastic food container machine, define the tray design in detail. Small design changes can affect material consumption, mold cost and machine output.
The length, width and height of the tray determine the required forming area. The mold must also include space for cavity borders, cutting edges and material flow.
For multiple cavities, the manufacturer should calculate how many trays can be arranged in one forming cycle without compromising heating uniformity or cutting accuracy.
Sheet thickness affects tray rigidity, forming time and material usage. Thin sheets may support lightweight packaging but require accurate heating and forming control. Thicker sheets may provide stronger trays but can increase heating time and production cost.
The machine should support the thickness range required by the customer’s products instead of being selected only according to maximum forming area.
Forming depth affects material stretching and wall thickness distribution. Deep-draw trays may require careful control of:
Sheet preheating
Forming pressure
Vacuum level
Plug assistance
Mold ventilation
Cooling time
A shallow tray and a deep takeaway container may require different process settings even when they use the same material.
Sharp corners can make forming more difficult and may cause material thinning. Suitable corner radii help the sheet flow more evenly into the mold.
Draft angles are also important because they allow the formed tray to release from the mold more easily. The mold design should be reviewed together with the machine supplier before production begins.
A Multistation Thermoforming Machine combines several production steps into a coordinated workflow. Depending on the machine configuration, the process may include:
Sheet feeding
Sheet heating
Vacuum or pressure forming
Cooling
Punching or cutting
Product separation
Robotic stacking
This integrated process can reduce the need to transfer semi-finished trays between separate machines. It may also improve consistency by keeping forming, cutting and stacking synchronized.
For high-volume food packaging, a multi-station design can be useful when the manufacturer needs stable production and reduced manual handling. However, the machine should be configured according to the product rather than selected only because it has more stations.
A complete production review should consider tray size, cavity count, sheet thickness, forming depth, mold type and required output.
Material cost is an important part of food packaging production. Waste can occur during sheet feeding, forming, cutting, trimming, product changeover and rejected production.
A well-planned mold layout can increase the number of usable trays produced from each sheet. The distance between cavities should be sufficient for forming and cutting, but excessive spacing may increase scrap.
The mold layout should balance:
Number of cavities
Tray dimensions
Cutting clearance
Sheet width
Material stretching
Finished product quality
Uneven heating can cause incomplete forming, thin corners or tray deformation. These problems may lead to rejected products and wasted sheet material.
Stable temperature control and suitable heating zones help the sheet reach a consistent forming condition before entering the mold.
Using a forming method that does not match the product geometry may increase defects. Vacuum forming can be suitable for many straightforward tray designs, while pressure forming may be useful for products with more detailed features.
The correct forming method should be selected based on the shape, depth, material and quality requirements.
For manufacturers producing different tray sizes, changeover time can create material waste and production downtime. Clear mold positioning, stored machine recipes and accessible adjustments can help reduce setup errors.
Forming is only one part of food tray production. The finished trays must also be separated, organized and prepared for the next packaging stage.
Clean cutting is important for tray appearance, stacking and operator safety. Uneven edges can affect the fit of lids or films and may create problems during later packaging.
The cutting method should be selected according to the material, product shape, production volume and mold design.
Automated stacking can organize finished trays into consistent columns. This helps operators transfer products to inspection, wrapping, storage or shipping.
For high-volume lines, automatic stacking can also reduce repetitive manual work and improve the consistency of finished product handling.
Depending on the product, formed food trays may be sent to:
Lidding or sealing equipment
Vacuum packaging equipment
Modified-atmosphere packaging
Labeling equipment
Inspection systems
Cartoning or case packing
The thermoforming machine should be planned as part of the complete production process. Communication between the thermoforming supplier and downstream equipment supplier can help avoid compatibility problems.
The best equipment configuration depends on production volume and product variety.
Small-batch manufacturers may produce multiple tray designs or change products frequently. Important considerations include:
Fast mold changeover
Flexible machine settings
Lower tooling investment
Simple parameter adjustment
Suitable cutting options
Easy operator access
A flexible pressure and vacuum system may be considered when different products require different forming methods.
High-volume production usually focuses on output stability, automation and low unit cost. Important features may include:
Automatic sheet feeding
Multi-cavity molds
Continuous forming
In-line cutting
Automatic stacking
Recipe storage
Production monitoring
A high-volume food packaging thermoformer should be evaluated according to actual finished trays per hour, not only the advertised die speed.
A basic production estimate can be made using the following formula:
Finished trays per hour = cycles per minute × cavities per cycle × 60 × efficiency rate
For example, if a machine runs at 20 cycles per minute, uses a 6-cavity mold and operates at an 85% efficiency rate:
20 × 6 × 60 × 0.85 = 6,120 trays per hour
This is only a planning estimate. Actual output may be affected by:
Tray size
Sheet thickness
Material type
Forming depth
Heating time
Cooling time
Cutting speed
Mold changeover
Reject rate
Operator workflow
The supplier should provide an output estimate based on the actual product drawing, mold layout and material specification.
MINGDU’s Plastic Food Tray Container Thermoforming Making Machine page lists a 450 × 600 mm forming area, up to 80 mm forming depth, 0.10–1.0 mm sheet thickness and a stated rate of 10–30 dies per minute. Actual finished output should be confirmed for the customer’s specific tray and mold configuration. View the MINGDU Plastic Food Tray Container Thermoforming Machine.
Before requesting a quotation, prepare the following information:
Tray length, width and height
Number of compartments
Required forming depth
Product drawing or sample
Required transparency or appearance
Lid, film or sealing requirements
PP, PET, PS, BOPS or another sheet material
Sheet thickness
Sheet width
Recycled or virgin material requirements
Material supplier and sheet formulation
Target output per hour
Expected working hours per day
Number of product designs
Small-batch or continuous production
Acceptable scrap rate
Required mold changeover time
Forming area
Maximum forming depth
Heating zone design
Vacuum and pressure requirements
Cutting method
Stacking method
Power and air requirements
Floor space
Operator training and technical support
Providing complete information helps the supplier recommend a suitable configuration instead of offering a general-purpose machine that may not match the production requirements.
MINGDU offers thermoforming equipment for different plastic forming applications, including food trays, containers and packaging products. The product range includes multi-station systems and thin-gauge thermoforming equipment for manufacturers that need automated forming, cutting and stacking.
The Thin-Gauge Thermoforming Machine category can be considered for lightweight packaging and high-volume sheet forming applications. A multi-station system may be suitable when the production line needs forming, punching, cutting and stacking in a coordinated process.
The most suitable machine depends on the customer’s tray dimensions, material, sheet thickness, forming depth and required output. MINGDU can review these details and recommend a configuration based on the actual project requirements.
A thermoforming machine for food trays heats plastic sheet and forms it over a mold to produce trays, containers, lids and other packaging products.
PP, PET, PS and BOPS may be considered for different food packaging applications. The correct material depends on the tray design, stiffness, transparency, heat requirements and customer specifications.
A food tray machine generally refers to equipment used to produce trays, while a disposable food container machine may produce containers, lids or takeaway packages. In practice, the same thermoforming system may support several products when the mold and material requirements are compatible.
In many cases, different tray sizes can be produced by changing the mold and adjusting the forming parameters. Compatibility depends on the machine’s forming area, sheet thickness range, forming depth and product layout.
Waste can be reduced through optimized mold layouts, uniform sheet heating, suitable forming parameters, accurate cutting, lower changeover losses and effective quality control.
Selecting the right thermoforming machine for food trays requires a complete understanding of the product, material and production process.
PP, PET, PS and BOPS each offer different forming characteristics. Tray dimensions, sheet thickness and forming depth affect mold design, heating time and output. For high-volume production, multi-station equipment with automated forming, cutting and stacking can help improve workflow consistency.
Before purchasing a machine, prepare the tray drawing or sample, material details, sheet thickness, target output and downstream packaging requirements.
Contact MINGDU to discuss your project.
Contact MINGDU with your tray dimensions, material and target output.
