Custom Injection Mould Design Files: Formats, Materials and Handoff Notes

A clear design handoff helps prevent costly misunderstandings when commissioning a custom injection mould. Send a dimensioned 3D model and, where available, a matching 2D drawing. Before uploading either file, ask the manufacturer which CAD and drawing formats it supports; the available product details do not specify accepted formats.

Prepare a Clear Design Handoff

Make sure the model and drawing show the same revision. Identify units, critical dimensions, tolerances, and any features that affect appearance or fit. The listed precision tolerance is ±0.02 mm, but confirm whether it applies to the dimensions that matter for your part. Inspection is mentioned in the product information, though no particular drawing standard or file format is prescribed.

Include the part's resin, application, surface-finish expectations, parting-line preferences, and any other project-specific requirements. Longterm lists consumer electronics and home appliance components among its injection-mould applications. These notes give the supplier context to assess the design and clarify open decisions before tooling begins.

Confirm Tooling Choices and Validation

The listed mold-base materials are S50C and P20. Cavity steel options include 718H, 1.2738, and S136. Cold-runner and hot-runner systems are both available, and the stated mold life ranges from 50,000 to 1,000,000 shots. These are options, not a universal recommendation: specify your preference or ask the manufacturer to advise based on the part and expected production needs.

Agree on validation before placing the order. Listed checks include a mold trial, dimensional inspection, and a full pre-shipment inspection. The OEM service description also refers to 3D inspection, trial testing, and sample confirmation. State which samples need approval and whether you require dimensional reports or other inspection records.

Project Information at a Glance

Manufacturer Background

Founded in 2010, Longterm Manufacturing Solutions Limited describes its services as mold design, tooling, precision machining, mold manufacturing, and parts production. Its company profile reports 50 employees and a team of seven experienced engineers; a separate R&D description identifies five engineers focused on molds and precision machining.

The company lists ISO 9001:2015 certification covering the design, manufacture, and sale of precision molds, as well as the sale of plastic products. Its case information includes an Italian handheld-device mold project and a US home-appliance project. Reported customer feedback mentions dimensional fit, stable trial samples, and delivery.

Frequently Asked Questions

Which file formats are accepted for a custom injection mould?

The available product information does not name supported formats. Check with the supplier before sending your files, and provide a dimensioned drawing alongside the 3D model when possible.

What information should accompany the design?

Document units, critical dimensions and tolerances, resin, finish, parting-line requirements, and the intended application. Also state your preferred mold materials and runner system, plus sample approval and inspection expectations.

What quality and support services are described?

The listed quality steps include a mold trial, dimensional inspection, and a full inspection before shipment. Online technical support, mold-maintenance guidance, and spare-parts supply are also mentioned.

Before You Place an Order

First confirm the accepted CAD and drawing formats. Then submit files that share the same revision, with critical dimensions and project requirements clearly identified. The listing gives a delivery estimate of 25–40 days and a minimum order quantity of one set; confirm timing for your specific design. For technical questions, contact Roger Luo at rogerluo@longterm-mold.com.

About Us

Longterm Manufacturing Solutions Limited was founded in 2010 and provides mold design, tooling, precision machining, mold manufacturing, and parts production for international customers. The company profile reports 50 employees and annual design and manufacture of more than 300 molds, while its production-capacity section separately reports approximately 180 molds delivered annually. It lists ISO 9001:2015 certification and case experience serving customers in electronics, home appliances, and industrial manufacturing.