Custom Vacuum Forming Services

Vacuum forming (also called thermoforming) heats a plastic sheet to a specific forming temperature, then drapes it over a mold. A vacuum removes the air between the mold and material, pulling the softened plastic tightly against the mold contours. Once cooled, the part is trimmed to exact specifications using CNC routers or punch presses. This process creates durable, precision plastic components for enclosures, machine guards, displays, and OEM parts at a fraction of the cost of injection molding.

Hill Plastics works with a wide range of thermoplastic materials including ABS (standard and high-temperature), HDPE, PETG, ASA/ABS (UV-resistant), polystyrene, KYDEX, and decorative foil-laminated sheets. Our engineering team helps you select the optimal material based on your application's requirements—whether you need impact resistance, chemical compatibility, flame retardance, outdoor durability, or specific aesthetic finishes. We evaluate cost, tensile strength, and environmental factors to ensure the best performance and value.

Using low-cost wood or polyurethane tooling, we can often produce a CNC-milled master pattern in just a few weeks, depending on part complexity. Once the pattern is mounted on a mold base, prototypes can be formed and trimmed shortly thereafter—typically within 3-4 weeks total from design approval. This rapid prototyping allows you to evaluate fit, function, and appearance before committing to production aluminum molds, and adjustments to the wood pattern are easily made if design changes are needed.

Prototype tooling uses low-cost materials like CNC-milled wood or polyurethane to create a master pattern for initial part validation. It's ideal for short runs, design review, and functional testing. Production tooling involves aluminum casting molds made from the approved master pattern, engineered for high-volume, repeatable manufacturing with consistent dimensional accuracy. Aluminum molds offer greater durability and longer tool life, making them cost-effective for large production runs while maintaining tight tolerances.

We operate eight thermoforming machines ranging from 2'x3' to 5'x9', accommodating a wide variety of part sizes. Our newest 4'x7' rotary thermoforming machine handles high-volume production with cycle times 2.5 times faster than standard single-station equipment. Whether you need small enclosures or large industrial components, our equipment capacity and over 20,000 square feet of manufacturing space support both compact and oversized vacuum formed parts.

Costs depend on part size, complexity, material selection, tooling type, and production volume. Vacuum forming offers significant cost advantages over injection molding—prototype tooling (wood or polyurethane) is far less expensive, and even production aluminum molds are more affordable for large parts. Low setup costs and quick turnaround times make vacuum forming ideal for both short runs and high-volume manufacturing. Contact us with your specifications for a detailed quote tailored to your project requirements.

Absolutely. Hill Plastics supports everything from prototype quantities and short runs to large-volume production of thousands of parts. Our 4'x7' rotary thermoforming machine delivers high-speed production cycles, while our diverse equipment lineup and experienced staff ensure consistent quality across all run sizes. We scale production efficiently to meet your schedule and budget, with rigorous quality control at every stage.

We offer comprehensive secondary fabrication including precision CNC trimming, contour cutting, edge finishing, precision drilling, heat bending, bonding, riveting, fastener installation, and threaded inserts. Our two 5'x10' CNC trimming centers ensure parts are finished to exact drawing specifications. These operations produce assembly-ready components for enclosures, machine guards, custom displays, and industrial applications, eliminating the need for additional vendors.