Send your part
Share a 2D drawing, 3D file, sample or a few key dimensions through the inquiry form.
Product categories
Three categories cover the parts we mold most. Every item is made to the customer's geometry.
Rubber Parts Manufacturer
Shengyi Rubber Parts manufactures custom molded rubber parts - caps, plugs, gaskets, seals, grommets, button caps and rubber-metal mounts - made to your drawing or sample in NR, SBR, NBR, EPDM, CR, FKM and silicone compounds.
Send a drawing, 3D file or sample through the inquiry form and our engineering team replies with questions or a quotation.

Custom frame gaskets molded to enclosure geometry
Molded to drawing
How we work
Every inquiry starts from what the part must do: seal, connect, protect from dust, or damp vibration.
Share a 2D drawing, 3D file, sample or a few key dimensions through the inquiry form.
We match the compound to the job across seven rubber families and confirm the part outline before molding.
Parts are molded in the confirmed compound, in the outline confirmed with you.
Custom rubber parts and components - caps, plugs, gaskets, seals, grommets, button caps and rubber-metal mounts - come from one manufacturer.

Product detail
These round tapered plugs seal equipment ports during storage and shipping. The taper, flange and head marking are molded in one piece, and the diameter follows the port size on your drawing.
Taper, flange and symbol are molded together, not assembled.
Symbols or part numbers can be molded in relief.
Diameter follows your hole or port drawing.
Buyer questions
The answers below cover the questions buyers ask most before the first order.
Still unsure? Send what you have - we will ask the rest.
Contact
Tell us about the part you need and where it is used.
Inquiry intake
Part type, key dimensions, quantity and material preference if you have one.