Injection Moulding in China: Tooling, Cost and QC
CCB helps you source injection moulding in China, from a tooling brief to approved parts and shipment. Buyers searching for injection molding need the same controls: agree the part specification, who owns the tool, and what must pass before production and payment release.
We reply the same working day to confirm receipt and arrange next steps.
What to send us for a quote
Send STEP files, dimensioned drawings, resin grade and colour reference, intended use, cosmetic zones, order and repeat quantities, packaging and delivery place. Include sample defects, inserts, assembly requirements and restricted substances requirements.
What drives the cost?
Tooling cost depends on geometry, cavity arrangement, slides, lifters, texture, cooling and mould material. Agree the exact steel specification, tool life basis, maintenance, storage and transfer rights in writing; hardened steel alone is insufficient. Part price also depends on resin, cycle, scrap and secondary operations.
How is quality controlled?
Use design-for-manufacture review to resolve draft, shrinkage, wall changes and gate marks. Approve trial shots and a first-article report from every cavity. Check resin identity, colour, warpage, fit and visible defects during production, then use an agreed ISO 2859-1 sampling plan before shipment.
What affects lead time?
Tool design approval, steel availability, machining, texturing, resin procurement and trial corrections set the lead time. Keep a separate milestone for production approval; paying for a tool does not mean the parts are ready to ship.
What should UK importers check?
Confirm the commodity code, customs value, origin, importer of record and EORI with your broker. Duty depends on classification and applicable trade measures. Check product-specific UKCA or CE requirements where relevant; a component or factory certificate does not establish conformity of the finished product. Great Britain and Northern Ireland can follow different routes.
Where can I see relevant factory profiles?
Use the industry directory as a starting point, then check the profile’s evidence and verification status. A listing is not proof of capability for your drawing.
Standards and regulatory sources
Check the applicable market and agreed edition; naming a standard is not a certificate of compliance.
What you get
- A UK sourcing company with its own team in China, coordinating your brief and supplier questions.
- A written specification, acceptance criteria and delivery responsibilities agreed before commitment.
- Evidence and open questions recorded for your approval.
What we do
- Review your files and intended use; clarify specification, inspection scope and delivery.
- Compare supplier proposals or agree the check scope, including exclusions and required evidence.
- Coordinate samples or on-site work, record findings and obtain your approval before the next commitment.
- Arrange the agreed production follow-up, inspection, report and delivery paperwork.
Cambridge China Bridge in brief
- Buying from Chinese factories since 2021 (the company was incorporated in September 2022), for our own businesses and for clients on the same terms.
- Our own staff are based in China, at two bases: the Pearl River Delta (Guangzhou, Shenzhen, Dongguan) and the Yangtze River Delta (Shanghai, Zhejiang, Jiangsu). They visit factories themselves.
- Quotes to suit how you buy: one delivered price, or an itemised quote with the factory cost, freight, duty and our service fee shown separately. Open-book detail is available on request.
- Audits and inspections are usually included in the quote for an order placed with us; complex checks that need a third party are charged extra, agreed first.
- Orders run from a first trial to scheduled full containers; the factory’s own minimum is stated in the quote.
- In one project, a UK EV charging operator cut unit cost by 70% and scaled 3× faster. In another, a multi-site Cambridge café chain saved 50% on packaging.
- A UK company in Cambridge and London: Cambridge China Bridge is the trading name of Piggy Pineapple Ltd, company number 14385590.
- Send 1–3 products you buy now and what you pay. We compare the same specification, quantity, inspection and delivery scope to establish a cost benchmark.
- A reference call with a past client can be arranged, with that client’s agreement.
How we charge
Quotes to suit how you buy: one delivered price, or an itemised quote with the factory cost, freight, duty and our service fee shown separately. Open-book detail is available on request.
Our margin is included in the quoted price or shown separately as a service fee. The service fee depends on the agreed scope, including products, samples, inspections and ongoing supply.
Questions buyers ask
Who owns the mould?
Ownership, location, access, maintenance and transfer rights belong in the tooling agreement. We ask for those terms before the tooling deposit; ownership should never be inferred from the part price.
What do you need before quoting?
Send STEP files, dimensioned drawings, resin grade and colour reference, intended use, cosmetic zones, order and repeat quantities, packaging and delivery place. Include sample defects, inserts, assembly requirements and restricted substances requirements.
What changes the price?
Tooling cost depends on geometry, cavity arrangement, slides, lifters, texture, cooling and mould material. Agree the exact steel specification, tool life basis, maintenance, storage and transfer rights in writing; hardened steel alone is insufficient. Part price also depends on resin, cycle, scrap and secondary operations.
How do you check the order?
Use design-for-manufacture review to resolve draft, shrinkage, wall changes and gate marks. Approve trial shots and a first-article report from every cavity. Check resin identity, colour, warpage, fit and visible defects during production, then use an agreed ISO 2859-1 sampling plan before shipment.
When can the goods or report be ready?
Tool design approval, steel availability, machining, texturing, resin procurement and trial corrections set the lead time. Keep a separate milestone for production approval; paying for a tool does not mean the parts are ready to ship.
How do I start an enquiry?
Use the contact page to send your brief and existing files. We clarify scope, evidence gaps, delivery and the next approval. Phone, WhatsApp or a Meet call can be arranged through that page.