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Our Clients Include Fortune 500 & Leading Brands
From luxury retail to automotive OEMs — thermoformed parts trusted by the world’s most demanding brands.
Heavy gauge thermoforming produces thick, structural plastic parts from sheet material ranging from 1.5 mm to 12 mm. DitaiPlastic specializes in large-format heavy gauge vacuum forming and pressure forming, with equipment capable of forming parts up to 4,500 mm × 2,500 mm — among the largest thermoforming capabilities in China.
Heavy Gauge Thermoforming Capabilities
| Specification | DitaiPlastic Capability |
|---|---|
| Sheet Thickness Range | 1.5 mm – 12 mm |
| Maximum Part Size | 4,500 mm × 2,500 mm × 1,500 mm |
| Forming Methods | Vacuum forming, pressure forming, twin-sheet forming |
| Tooling Material | CNC-machined aluminum (temperature controlled) |
| Typical Tolerances | ±0.5 mm (mold side), ±0.8 mm (non-mold side) |
| Forming Machines | 16 sets, including custom large-format systems |
| CNC Trimming | 18 sets 5-axis CNC machines |
| Annual Capacity | 500,000+ formed parts |
Materials for Heavy Gauge Thermoforming
| Material | Thickness Range | Key Properties | Common Applications |
|---|---|---|---|
| ABS | 1.5 – 10 mm | Impact resistance, paintable | Automotive panels, equipment housings |
| HDPE | 2 – 12 mm | Chemical/UV resistant | Agricultural equipment, outdoor enclosures |
| Polycarbonate | 1.5 – 8 mm | Transparent, high heat | Machine guards, lighting covers |
| PP | 2 – 10 mm | Chemical resistant, lightweight | Chemical equipment, tanks |
| PMMA | 2 – 8 mm | Optical clarity, UV stable | Skylights, display covers |
| TPO | 2 – 6 mm | Flexible, paintable | Automotive bumpers, body panels |
Heavy Gauge Thermoforming vs Sheet Metal vs Injection Molding
| Factor | Heavy Gauge Thermoforming | Sheet Metal Fabrication | Injection Molding |
|---|---|---|---|
| Tooling Cost | $2,000 – $15,000 | $5,000 – $30,000 | $30,000 – $150,000+ |
| Tooling Lead Time | 2 – 6 weeks | 2 – 4 weeks | 8 – 16 weeks |
| Part Weight | 40–60% lighter than metal | Baseline | Similar to thermoforming |
| Max Part Size | 4,500 mm+ | Unlimited (with welding) | ~1,200 mm (limited by clamp tonnage) |
| Optimal Volume | 100 – 10,000/year | 1 – 500/year | 5,000+/year |
| Surface Finish | Class A (pressure forming) | Requires painting | Mold-textured |
| Corrosion Resistance | Inherent (plastic) | Requires coating | Inherent (plastic) |
| Design Changes | $500 – $3,000 | $2,000 – $10,000 | $5,000 – $25,000+ |
Applications
- Automotive — Bumpers, fenders, truck body panels, interior trim, EV battery covers
- Medical Equipment — CT scanner housings, MRI covers, patient bed panels, surgical equipment enclosures
- EV & Energy — Charging station housings, battery enclosures, solar equipment covers
- Robotics — AMR body shells, robotic arm covers, automation equipment panels
- Industrial — Machine guards, control panel housings, equipment enclosures
- Agriculture — Tractor panels, equipment covers, UV-resistant outdoor housings
Our Process
- Engineering Review — Free DFM analysis of your design, material recommendations, and tolerance feasibility assessment
- Tooling — CNC-machined aluminum molds with temperature control channels for consistent forming
- Forming — Heavy gauge vacuum or pressure forming with plug-assist for uniform wall distribution
- CNC Trimming — 5-axis CNC machines achieve ±0.3 mm trim accuracy
- Finishing — Painting, texturing, drilling, bonding, assembly, quality inspection
Frequently Asked Questions
What is the thickest material you can thermoform?
We routinely form sheets up to 12 mm thick. Our large-format machines and temperature-controlled aluminum tooling ensure uniform heating and consistent forming even at maximum gauge thickness.
Can heavy gauge thermoforming replace sheet metal?
Yes, for many applications. Thermoformed plastic parts are 40–60% lighter than equivalent metal parts, inherently corrosion-resistant, and cost less at volumes of 100–10,000 units per year. Pressure forming achieves Class A surfaces that match or exceed painted metal aesthetics.
What tolerances can you hold on heavy gauge parts?
Standard tolerances are ±0.5 mm on the mold side and ±0.8 mm on the non-mold side. With temperature-controlled aluminum tooling and optimized process parameters, we achieve ±0.3 mm on critical features.
Request a Heavy Gauge Thermoforming Quote
Have a heavy gauge project? Send us your CAD files, material requirements, and volume estimates. Our engineering team will provide a free DFM review and competitive quotation within 48 hours.
📧 Email: [email protected]
📞 Phone: +86 139 2574 6189
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