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Thermoforming Mold for PP Cup Lids and Bowl Lids
Model: PP Cup Lids and Bowl Lids
This thermoforming mold is specially designed for high-efficiency mass production of PP cup lids and bowl lids, featuring stable forming, excellent se...
Thermoforming Mold for Square Paper Bowl Lids
Model：Square Paper Bowl Lids
Thermoforming Mold
INTRODUCTION
This custom thermoforming mold is designed for mass production of square paper bowl lids, widely used in disposable food packaging, takeaway containers, instant noodle bowls and paper bowl sealing applications. With a multi-cavity layout, the mold supports high-efficiency production of plastic lids that match square paper bowls, helping customers improve output consistency and reduce production costs.
Square paper bowl lids require stable dimensional accuracy, flat sealing surfaces and reliable stacking performance. If the mold cavity is not well optimized, problems such as uneven wall thickness, lid warping, poor sealing fit and burrs may easily occur during continuous production. This mold adopts targeted structural design to improve material distribution, cooling efficiency and trimming stability, making it suitable for long-term and high-volume thermoforming production.
The forming cavity is made of high-quality CNC-machined aluminum alloy. Each cavity is precisely processed to ensure consistent lid shape, flatness and sealing flange dimension. The vacuum holes are arranged reasonably to improve uniform suction during forming, which helps reduce material stretching marks and local thinning. This structure is especially important for square lids, because corners and flanges are more likely to show uneven material distribution during the thermoforming process.
The mold is equipped with built-in circulating water cooling channels, which can quickly and evenly cool the sheet after forming. This helps shorten cycle time, improve production efficiency and reduce the risk of lid deformation during demolding. For continuous thermoforming lines, stable cooling performance is one of the key factors to maintain consistent product quality.
The trimming unit uses high-strength alloy steel cutting blades. The cutting clearance is optimized according to different sheet materials and lid thickness, so that the finished lids can obtain smooth edges without obvious burrs. This is very important for food-grade packaging lids, because clean edges help improve safety, usability and customer acceptance.
This mold is compatible with food-grade PP, PET and PS sheets. It can be used to produce square paper bowl lids for takeaway restaurants, convenience food, cold chain packaging and disposable tableware markets. When used together with multi-station thermoforming machines, the mold can complete forming, punching and stacking in a continuous workflow, which is suitable for large-scale packaging production.
We provide full services including mold design, manufacturing, trial run, sample testing and after-sales technical support. Customers can provide paper bowl samples, lid drawings or specific size requirements, and our engineering team can customize the mold structure according to actual production conditions. Mold modification and upgrade services are also available for existing thermoforming lines.
Key Specifications and Advantages
- Multi-cavity layout for high-efficiency square paper bowl lid production
- Precise cavity processing for stable lid dimension and flatness
- Optimized vacuum hole arrangement to reduce uneven wall thickness
- Built-in circulating water cooling channels for stable cooling and demolding
- Alloy steel trimming blade for clean and burr-free cutting
- Compatible with food-grade PP, PET and PS plastic sheets
- Customizable cavity quantity, lid size and sealing flange structure
- Complete mold trial run, testing and after-sales technical support
Square paper bowl lids require stable dimensional accuracy, flat sealing surfaces and reliable stacking performance. If the mold cavity is not well optimized, problems such as uneven wall thickness, lid warping, poor sealing fit and burrs may easily occur during continuous production. This mold adopts targeted structural design to improve material distribution, cooling efficiency and trimming stability, making it suitable for long-term and high-volume thermoforming production.
The forming cavity is made of high-quality CNC-machined aluminum alloy. Each cavity is precisely processed to ensure consistent lid shape, flatness and sealing flange dimension. The vacuum holes are arranged reasonably to improve uniform suction during forming, which helps reduce material stretching marks and local thinning. This structure is especially important for square lids, because corners and flanges are more likely to show uneven material distribution during the thermoforming process.
The mold is equipped with built-in circulating water cooling channels, which can quickly and evenly cool the sheet after forming. This helps shorten cycle time, improve production efficiency and reduce the risk of lid deformation during demolding. For continuous thermoforming lines, stable cooling performance is one of the key factors to maintain consistent product quality.
The trimming unit uses high-strength alloy steel cutting blades. The cutting clearance is optimized according to different sheet materials and lid thickness, so that the finished lids can obtain smooth edges without obvious burrs. This is very important for food-grade packaging lids, because clean edges help improve safety, usability and customer acceptance.
This mold is compatible with food-grade PP, PET and PS sheets. It can be used to produce square paper bowl lids for takeaway restaurants, convenience food, cold chain packaging and disposable tableware markets. When used together with multi-station thermoforming machines, the mold can complete forming, punching and stacking in a continuous workflow, which is suitable for large-scale packaging production.
We provide full services including mold design, manufacturing, trial run, sample testing and after-sales technical support. Customers can provide paper bowl samples, lid drawings or specific size requirements, and our engineering team can customize the mold structure according to actual production conditions. Mold modification and upgrade services are also available for existing thermoforming lines.
Key Specifications and Advantages
- Multi-cavity layout for high-efficiency square paper bowl lid production
- Precise cavity processing for stable lid dimension and flatness
- Optimized vacuum hole arrangement to reduce uneven wall thickness
- Built-in circulating water cooling channels for stable cooling and demolding
- Alloy steel trimming blade for clean and burr-free cutting
- Compatible with food-grade PP, PET and PS plastic sheets
- Customizable cavity quantity, lid size and sealing flange structure
- Complete mold trial run, testing and after-sales technical support
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