How to Select an Injection Mould for Your Resin and Production Needs

Selecting an injection mould starts with checking whether its design is suitable for your resin and processing conditions. Then evaluate cavity count, expected mould life, surface finish, runner type, and delivery timing against the part and planned output. The available specifications offer single- and multi-cavity designs, a stated service life of 50,000–1,000,000 shots, and an estimated delivery period of 20–35 days. Resin compatibility should be confirmed for each project.

Start with Resin and Part Requirements

The listed mould materials do not establish compatibility with particular resins. The available options include S50C, P20, and 1.2738 for the mould base, and H13 and 718H for mould steel, but no resin-to-material recommendations are provided. Share the resin grade, processing requirements, and part details with the supplier for technical review before approving a design.

Match the Mould to Production

Choose between a single-cavity and multi-cavity layout according to your output needs. The stated mould life spans 50,000 to 1,000,000 shots, so compare the applicable target with your production schedule and anticipated demand. The specifications do not define an output rate or prescribe a cavity count for a particular volume; ask for a project-specific recommendation.

Surface and runner requirements also influence the design. SPI and VDI finishes are listed, and a hot runner is available as an option. Confirm the required finish and whether the runner system should be hot before tooling begins.

Quality, Timing, and Project Experience

Listed quality procedures include incoming quality inspection (IQC), a mould trial, dimensional checks, and a full inspection before shipment. The company reports ISO 9001:2015 certification covering the design, manufacture, and sale of precision moulds, as well as sales of plastic products.

Reported projects include a handheld-device electronic housing mould for an Italian customer and a double-shot overmoulding project for a consumer electronics shell in France. These examples demonstrate project experience, but the published details do not state which resins were used.

Injection mould applications include consumer electronics housings and connectors, plus household appliance housings and control panels. Confirm the project schedule directly; the stated delivery estimate is 20–35 days.

Specifications to Confirm

Frequently Asked Questions

Do the specifications confirm compatibility with my resin?

No specific resin compatibility is published. Provide the resin grade and processing conditions, then request a technical review before finalizing the mould.

What should guide the cavity-count decision?

Use expected production volume and the required mould life as key inputs. Both single- and multi-cavity configurations are offered, but no volume-based recommendation or output rate is stated.

Which inspection and support services are listed?

Quality checks include incoming inspection, a mould trial, dimensional inspection, and full inspection before shipment. After-sales services include mould maintenance guidance, spare parts, online technical support, and consultation.

Choosing the Right Configuration

Before requesting a proposal, provide the resin, part specifications, projected volume, desired surface finish, and runner preference. Review the recommended cavity arrangement and shot-life target alongside the inspection plan, then confirm whether the 20–35-day delivery estimate fits your schedule. Longterm Mold lists custom mould making, mould development with injection mass production, and high-precision mould services among its business models. For a technical review, contact rogerluo@longterm-mold.com.

About Longterm Manufacturing Solutions Limited

Founded in 2010, Longterm Manufacturing Solutions Limited provides mould design and tooling, precision machining, mould manufacturing, and parts production for customers in North America, Europe, and Australia. The company reports a 2,000-square-metre factory with monthly capacity for 15–20 injection moulds and tens of thousands of precision-machined parts. It holds ISO 9001:2015 certification and serves clients across multiple industries.