What materials are suitable for thick-sheet thermoforming? Thick-sheet thermoforming is also known as… Thick-sheet thermoforming This refers to cases where the commonly used raw material exceeds 2 mm in thickness, making it impossible to thermoform on an automated machine; therefore, a specialized fully automatic tube‑cutting machine designed for thick sheets must be employed for processing and manufacturing.

　　The raw materials for thick-sheet thermoforming include various colored ABS, acrylic, PETG, PVC, PC, PP, PE, PS, as well as a wide range of modified engineering plastics—such as bubble‑free glass, textured panels, and translucent sheets.

　　Thick-sheet thermoforming is well suited for the design and manufacturing of product exteriors, including rear covers for vintage televisions, display panels, medical equipment, textile machinery, and automotive accessories, as well as for precision electronics, medical devices, and cosmetic products.

　　Custom toy car plastic parts

　　Key thick‑sheet thermoformed products include refrigerator liners, thermoformed components for televisions and other electrical appliances, PS thermoforming, ABS thermoforming, enclosure thermoforming, thermoformed housings, thick‑plate thermoforming, thick‑walled tube thermoforming, acrylic thermoforming, PMMA thermoforming, and more. Our company’s thick‑sheet thermoformed products are widely used in medical devices, food‑processing equipment, instrument enclosures, home appliance casings, automotive body trim covers, pet bowls, lightbox signage, lighting fixtures, the refrigerator industry, the home appliance sector, and various appliance accessories. Thick‑sheet thermoformed products can both replace injection molding, thereby reducing costly plastic mold expenses, and supplant traditional manual fabrication, offering advantages such as superior process efficiency, faster production speeds, and reliable quality.

　　(2) Working temperature for thermoforming thick sheets. This requires analysis and optimization from two perspectives: the heating temperature of the plastic sheet and the operating temperature of the thermoforming mold. In practice, a dual‑sided heating approach is typically employed to heat the plastic sheet, while the forming temperature is tailored to suit different product geometries, ensuring that the final product aligns with the design specifications. Thick-sheet thermoforming The mold’s operating temperature must be maintained at an appropriate level—neither too high nor too low. If the mold temperature is excessively high, the molded part may stick to the die, leading to demolding deformation. Conversely, if the mold temperature is too low, inadequate sheet‑forming can result in defects such as black spots, wrinkles, and gaps. In general, when the operating temperatures of plastic molds used for thermoforming thick‑walled medical device housings are set as follows—HDPE: 50°C; PE: 50°C; PVC: 50°C; ABS: 70–80°C; PC: 120°C; ABS/PC: 110°C—the mold temperature is considered optimal.

　　Improvement of Hardware Molds

　　Improve high-pressure thick-plate thermoforming molds. A high-pressure frame can be used. Thick-sheet thermoforming Stamping dies ensure sufficient forming of thermoformed products made from thick carbon steel sheets for medical device housings.

　　A lower mold is used to assist in forming the part. Alternatively, lifting the upper mold can facilitate molding, enabling the production of deep‑walled, highly complex bucket‑shaped housings for medical devices while preventing surface defects such as cracking or wrinkling that often occur with thick‑wall thermoformed products.

　　Improve the mold core-pulling mechanism. By adopting the proposed design for the hinge, adhesive block, and hydraulic system, demolding of thick‑plate thermoformed products can be significantly facilitated.