Penz Products,Inc.

Custom Plastic Manufacturing of a Belt Shroud for the Motorcycle Industry

A customer in the motorcycle industry asked Penz Products to provide a Cost-effective solution for sourcing a clear polycarbonate guard to protect the belt drive mechanisms on one of their models. Since the part was 100% visible, requirements dictated that it be window-clear and as a protective device it had to be extremely durable as well as shatter-, UV-, and weather-resistant.

Extremely tight controls over the thermoforming process enabled us to meet dimensional tolerances of ± .010” while preserving the strength and resistance properties of polycarbonate. In-process and final inspections included clarity checks, materials analysis, and dimensional gauging.

It was critical that this belt shroud, with dimensions of 9” x 21”x 5”, be manufactured according to the engineered specifications to meet critical operating and safety regulations. Even a small imperfection could compromise these requirements. Our capability for manufacturing zero-defect parts on schedule and within a reasonable cost framework enabled us to complete this job successfully. If you have a similar product and are interested in learning more about our process contact us today.

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Custom Plastic Manufacturing of a Belt Shroud Project Highlights

Product Description
This shroud is a PC optical clear UV resistant shatter resistant outer guard cover for belt drives on a motorcycle.
Thermoforming Capabilities Applied/Processes
CNC Machining
Extreme precautions in finishing were required due to the product’s demand of window-type clarity
Equipment Used to Manufacture Part
Large Single Shuttle Thermoformer
Overall Part Dimensions
9.0” wide x 21.0” long x 5.0” high
Tightest Tolerances
+/- 0.010” on hole spacing, OAH and OAL
Material Used
Clear Polycarbonate
Thickness: 0.375”
Material Finish
Widow clear finish
In process testing/inspection performed
Clarity control of material ensuring a spec-free finish via tight controls in thermoforming and proper selection of tooling materials. Final inspection consisted of a clarity check and a defect-free optimal clear cover
Industry for Use
Motorcycle Industry
Recreational Industry
Prototype, Small, and Large Orders
Delivery/Turnaround Time
Four (4) weeks on tooling and two (2) additional weeks for product
Delivery Location
Standards Met
Customer Specifications, 2D CAD Drawing
Product Name
Motorcycle Belt Shroud
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