How to Select a Plastic Mold for Your Resin, Tolerance, and Production Needs

Choosing the right plastic injection mold starts with matching its specifications to your part and production plan. Review resin compatibility, drawing tolerances, surface finish, cavity configuration, and expected shot count before committing to tooling. The custom mold described here supports ABS, PC, and PP, lists a precision tolerance of ±0.02 mm, and is available in single- or multi-cavity designs.

Start with the Part Requirements

Resin and dimensional accuracy

The listed mold is designed for ABS, PC, and PP. If your component uses another resin, request confirmation of compatibility rather than assuming it is covered. For dimensional accuracy, compare the part drawing with the stated ±0.02 mm precision tolerance and clarify how critical dimensions will be measured and inspected.

Tooling material options include P20, 718H, and 1.2738 steel. Available surface treatments include polished, textured, and matte finishes. Select the finish that matches the component’s appearance and functional requirements, and confirm the tooling material against the application.

Cavities and expected output

Single-cavity and multi-cavity configurations are offered. The product information does not identify a specific production-volume threshold for either option, so confirm the cavity layout for the required output and project conditions. The stated mold life ranges from 50,000 to 800,000 shots; compare this range with the planned production run and verify the expected service life for your application.

Specifications at a Glance

Planning the Tooling Project

The listed minimum order quantity is one set, and the stated delivery period is 20–35 days. The company offers OEM custom mold making, as well as mold development paired with plastic injection mass production. Confirm the timeline, trial requirements, dimensional checks, and final inspection criteria before placing an order.

Examples in the company profile include consumer electronics housings and household appliance components. Reported projects include an electronic housing mold for a handheld device part and a double-shot overmolding mold for a consumer electronics shell. These examples provide application context; project-specific requirements should still be reviewed independently.

Frequently Asked Questions

Which resins are listed for this mold?

The stated materials are ABS, PC, and PP. Ask the supplier to confirm suitability if your part uses a different resin.

Is ±0.02 mm the listed precision tolerance?

Yes. The product information specifies ±0.02 mm. Compare it with the part drawing and confirm the measurement approach for critical features.

How do I decide on a cavity count?

Both single- and multi-cavity options are available, but no output-based recommendation is provided. Discuss the planned volume and project specifications with the supplier to establish the appropriate layout.

Supplier Background and Next Steps

Longterm Manufacturing Solutions Limited states that it was founded in 2010 and provides mold design, tooling, precision machining, mold manufacturing, and parts production. Its company profile lists 50 employees and a 2,000 sqm factory area. The R&D team is described as working on mold design, precision machining, sample verification, and process optimization. The company reports ISO 9001:2015 certification covering the design, manufacture, and sale of precision molds and the sale of plastic products.

Before ordering, confirm the resin, tolerance, surface finish, cavity configuration, and expected shot count. For project-specific technical details or support, contact rogerluo@longterm-mold.com.

About Us

Longterm Manufacturing Solutions Limited serves international customers with mold design, tooling, precision machining, mold manufacturing, and parts production. Its reported cooperation cases span consumer electronics, home appliances, and industrial equipment. Company information lists ISO 9001:2015 certification, 50 employees, and a 2,000 sqm factory area.