Custom made silicone rubber round numerical keypad

A round numerical keypad should place its number controls clearly within the available circular layout. Custom silicone rubber molding allows the face arrangement, base outline, and identifying details to follow the device. The usable button areas need to remain distinct near the outer curve as well as at the center.

Check common entry sequences and the user's approach to each position. A control near the curved perimeter may have less surrounding space than one inside the layout. Its housing opening and supporting rubber should still allow the intended travel without catching adjacent faces.

Evaluate the keypad in the assembled device rather than from the flat layout alone. Printed, raised, or recessed identification should remain readable at the normal viewing angle. During fitting, keep the circular base located without stretching it around supports and inspect for a trapped edge. Clean through the finished product's intended method. If the enclosure is reopened, restore the original orientation before checking the complete number sequence and key return.

Material options

Silicone. Custom formulation and color for the intended contact conditions.

Hardness selection

Silicone: 20–80 Shore A. If the enclosure is reopened, restore the original orientation before checking the complete number sequence and key return.

Custom dimensions

Custom silicone rubber molding allows the face arrangement, base outline, and identifying details to follow the device.

Fit & assembly

Check common entry sequences and the user's approach to each position.

Use & inspection

During fitting, keep the circular base located without stretching it around supports and inspect for a trapped edge.

Photos illustrate structure or material only. The usable button areas need to remain distinct near the outer curve as well as at the center. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.