Pre-sales Consultation
Sample Submission
Order Confirmation & Initial Payment
Engineering Design
Design Confirmation
Custom Thermoforming Molds:From Concept to Production
Mold Fabrication
Mold Testing & Optimization
Sample Delivery for Review
Final Approval & Balance Payment
Packaging & Shipment
Plastic Cup 3D Model
Forming Mold Structural Design
Punching Die Design
Thermoforming Mould Design
Thermoforming Mold Design
We design and manufacture a full range of thermoforming dies, including forming molds, punching molds, cutting molds, stacking molds, and cup machine molds. To accelerate development, we also offer rapid prototyping, iterative design support, and fully customized solutions to meet the unique needs of your complete project.
Thermoforming Mold Material Selection & Inspection
Incoming Material Quality Check
CNC Mold Making
CNC Mold Making
Drilling
Drilling
Mold Processing CNC Center
Mold Machining
In-house Thermoforming Mold Machining
• Rough Machining: The mold base undergoes CNC milling and turning, with a 0.2–0.5 mm stock allowance retained for final finishing.
• Precision Machining: The mold surfaces are finished by high-speed CNC milling, achieving a surface roughness of Ra ≤ 0.8μm. Drilling of heating and air holes is performed with positional and diameter tolerances maintained within ±0.05mm.
• Surface Treatment: Mirror polishing is applied to cavity surfaces as needed, particularly for transparent products.
• Dimensional Inspection: Key dimensions are verified using a Coordinate Measuring Machine (CMM), with tolerances maintained within ±0.1mm.
• Mold Trial & Validation: A pilot run of 300–500 cycles is performed to assess product quality and demolding performance, ensuring no deformation, tearing, or burrs occur.
Mold Adjustment
Deburring
Polishing
Die Edge Adjustment
Manual Processing
Pressure Testing
Pressure Test
Trial Mold
Product Inspection
Assembly and Testing
After the adjustment, we proceed with comprehensive mold commissioning to ensure optimal forming performance.
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Temperature Calibration
• Heat the mold gradually in stages until it reaches the target forming temperature (e.g., 120–160°C for PP, depending on material requirements).
• Use an infrared thermometer to check surface temperature consistency; ensure variation is within ±3°C. -
Pressure Testing
• Run the machine under no-load conditions to test clamping pressure; check the pressure gauge for stability.
• Adjust the pneumatic system to meet process parameters (e.g., vacuum pressure ≥-0.08MPa). -
Stroke and Clearance Adjustment
• Set the clamping stroke to ensure uniform clearance between the upper and lower mold halves. Use feeler gauges to verify the clearance, with an allowable deviation of ≤ 0.1 mm.
• Fine-tune the demolding mechanism to ensure smooth actuation, with the ejection stroke precisely aligned to the product height. -
Post-Trial Product Inspection
• Check that the formed product is free from whitening, warping, short shots, or irregular edges.
• Verify dimensions against engineering drawings, ensuring critical tolerances are within ± 0.2 mm.
Case Studies
Plastic Thermoforming Mold
Custom 90-Cell Seedling Tray Project for Russian Client
This custom project was completed using our four-station TTF-520AF thermoforming
machine, delivering precise tray formation for high-volume production.
Seedling Tray Sample Design
Product Layout
Forming Assembly
Punching Assembly
Punched Parts
Cutting Assembly
Stacking Assembly
90-Cell Seedling Tray
Custom 10-Pack Egg Tray (2×5) Project for Egyptian Customer
This project was accomplished with our three-station TTF-520A thermoforming machine, which is
designed to efficiently produce durable egg trays with precise cavity alignment.
Egg Tray Sample Design
Product Layout
Forming Assembly
Cutting Assembly
Stacking Assembly
10-Pack Egg Tray (2×5)
Custom 32-Side Hole Fruit Boxes Project for Mexican Client
Fruit Boxes Sample Design
Product Layout
Forming Assembly
Punching Assembly
Cutting Assembly
Stacking Assembly
32-Side Hole Fruit Boxes
Custom 4-Pack of Coasters Project for Algerian Customer
This project was completed using our three-station TTF-520A thermoforming machine,
creating durable coasters with precise surface finish and consistent thickness.
4-Pack of Coasters Sample Design
Product Layout
Forming Assembly
Cutting Assembly
Stacking Assembly
4-Pack of Coasters
Four-Coaster Pack
Custom 24-Cavity Thermoforming Mold Project for PP Cups
This project was completed using our TQC-750 thermoforming machine, producing high-precision
PP cups with uniform wall thickness and consistent cavity quality.
24-Cavity Cup Mold Sample Design
Product Layout
Mold Design
Plastic Cup
Custom 2.5L PP Nursery Pot Project for Our Client in 2024
This project was achieved using our four-station TTF-820AF thermoforming machine, delivering
high dimensional accuracy and consistent mold quality for durable 2.5L PP nursery pots.
2.5L Nursery Pot Sample Design
Product Layout
Forming Assembly
Punching Assembly
Cutting Assembly
Stacking Assembly
Custom PP Flat Cap with Cross Slot Project for Turkish Customer
This project was achieved using our four-station TTF-520AF thermoforming machine, delivering
precisely aligned cross-slot flat caps with uniform thickness and consistent quality for our Turkish client.
Flat Cap with Cross Slot Sample Design
Product Layout
Forming Assembly
Punching Assembly
Cutting Assembly
Stacking Assembly
FAQ
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Q: Can you design and manufacture thermoforming dies based on my design drawings?
A: Yes, we can design and manufacture molds based on your samples or design drawings. In addition, we offer professional suggestions and optimizations based on our manufacturing experience.
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Q: Do you provide proofing services?
A: Yes. We provide sample proofing for customer approval. Based on your feedback, we will modify and optimize the mold until the final version fully meets your expectations.
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Q: What is the MOQ for your custom thermoforming molds?
A: The MOQ is one complete mold set.
• For cup forming machines, this includes both the upper and lower molds.
• For multi-station thermoforming machines, the mold set typically consists of a forming mold, cutting mold, stacking mold, and optionally a punching mold (for four-station models only).
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Q: How do you ensure mold accuracy and surface finish?
A: We carefully select materials based on the application, then carry out rough and precision machining, keeping a 0.1–0.2 mm allowance for finishing. Key mold surfaces are polished using our German machining center, which ensures positioning accuracy within 0.01 mm, delivering high dimensional precision and surface quality.
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Q: Do you perform mold testing before delivery?
A: Yes. We conduct trial runs on our in-house machines to ensure proper forming and dimensional accuracy. Sample parts are sent for customer approval, and final delivery takes place only after confirmation.
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Q: What is the typical service life of your plastic forming molds?
A: Under standard operating conditions, our molds deliver a service life of up to 10 million cycles (excluding wear parts). We also provide a three-year mold warranty for added assurance.
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Q: Are your molds compatible with thermoforming machines from other brands?
A: Compatibility depends on your machine's configuration, but we can customize the mold dimensions and interfaces to ensure proper fit and function with most mainstream equipment.
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Q: What is the lead time for custom thermoforming mold delivery?
A: The standard delivery time is 45 working days. In some cases, it may extend to 60 working days, mainly if there are delays in customer approval of the mold drawings. Timely confirmation helps ensure on-time delivery.
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Q: Do you offer remote support?
A: Yes, we provide remote support including technical consultation available 12 hours a day, 7 days a week, and video remote diagnostics for fast troubleshooting.
As one of the most professional thermoforming mould manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy high-grade thermoforming mould from our factory.
Leverage Our Industry Expertise to Power Your Production Line
LITAI's plastic thermoforming machine factory is equipped with advanced automated CNC machining centers and testing equipment, operating in strict compliance with ISO9001 and CE-certified production systems. Our range of high-performance plastic thermoforming equipment, including multi-station thermoforming machines, plastic cup thermoforming machines, and sheet extrusion lines have been trusted by customers in nearly 100 countries and regions.
- 24+ years experience
- 60+ engineer production team
- 45 days lead time for standard equipmen
- $20million+ annual output value
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