Plastic product development · mold making · injection molding · secondary finishing
Injection Molding & Tooling Support in China
Quick answer: Jinyu Novelty can support custom plastic product projects through direct-access local injection-molding and mold-making resources in China. The project can start from a drawing, 3D file, physical sample or existing product and move through tooling quotation, mold development, trial parts, finishing and mass-production coordination.
Common project materials include ABS, PP, TPR and PVC, with other resins reviewed by the exact part and production requirement. Secondary processes can include spray painting, pad printing, UV printing and electroplating when technically suitable.
Production route
From Product File to Injection-Molded Production
Not every project should open a mold immediately. The correct route depends on design stability, expected quantity, material, tolerance, appearance and commercial budget.
Material & finishing
Common Plastic and Decoration Routes
| Route | Typical project use | What is confirmed per RFQ |
|---|---|---|
| ABS | Rigid housings, toy parts, consumer-product shells and structural plastic components | Grade, color, impact expectation, wall design and finish |
| PP | Flexible hinges, containers, simple consumer parts and selected functional components | Grade, shrinkage, rigidity/flexibility and end-use conditions |
| TPR | Soft-touch parts, grips, flexible toy/consumer components and overmold-style applications | Hardness, feel, bonding route and exact formulation |
| PVC | Selected flexible or molded consumer-product parts where technically and commercially suitable | Formulation, hardness, destination/compliance implications and finish |
| Spray painting | Color, visual finish and decorative surfaces | Paint system, masking, adhesion and approved color sample |
| Pad printing | Logos, small graphics, markings and irregular surfaces | Artwork, print position, ink system and durability expectation |
| UV printing | Full-color or detailed graphics on suitable surfaces | Substrate compatibility, artwork, color and adhesion |
| Electroplating | Metallic decorative appearance on suitable plastic parts | Substrate, coating stack, appearance, performance and destination requirements |
Machine capacity
How Machine Size Is Confirmed
Local factories may describe machines by injection capacity such as “8-ounce” or “12-ounce” machines. That does not map to one universal clamping tonnage. For a real RFQ, Jinyu confirms the actual machine model, clamping force, shot size and suitability for the mold/part before presenting machine capability to the buyer.
This avoids publishing invented tonnage ranges. The correct machine is matched to part dimensions, projected area, mold size, material and shot-weight requirements.
Best-fit work
Projects That Fit This Route Well
Consumer Product Housings
Plastic shells, covers, enclosures and structural parts for selected consumer and small-electronic products.
Toys, Gifts & Novelty Parts
Custom plastic bodies, components, mechanisms, grips, decorative parts and branded novelty projects.
Prototype to Mold Conversion
Projects currently using 3D printing or CNC prototypes that need better unit economics through injection-molded production.
Existing Product Modification
Review an existing product or sample for structural changes, new tooling, material changes or private-label differentiation.
Custom Promotional Products
Plastic custom shapes, branded components and projects combining molded parts with printing or decorative finishing.
Repeat Production Programs
Stable plastic-part programs that need recurring molding, finishing, packing and China-side production follow-up.
What Jinyu Can Coordinate
- Manufacturing-route and supplier selection
- Mold/tooling quotation comparison
- Material and finish clarification
- Trial-part and revision follow-up
- Color, logo and secondary-process coordination
- Approved sample / file version tracking
- Mass-production and packaging checkpoints
- China-side communication and issue escalation
Low-volume alternative
Not Ready for Tooling Yet?
Jinyu operates an in-house Bambu Lab P1S FDM/FFF 3D-printing route for selected PLA/PETG prototypes and short runs. It can be used to validate form, fit, assembly or buyer demand before committing to mold investment.
Send Your Injection Molding or Tooling RFQ
Send the drawing, 3D file, physical-product reference, material, quantity and finish requirement. If the design is still unstable, we can first evaluate whether 3D prototyping is a better commercial step before mold development.