China United Mould (CNM)
Your injection mould (mold) manufacturer in Guangdong, China
China United Mould Limited has designed and built custom plastic injection moulds since 2000. Our two plants in Huizhou and Dongguan, Guangdong, cover the whole route from DFM review and 3D mould design to tool making, mould trials, moulding production, finishing and assembly – so one responsible team takes your part from drawing to delivered product.
Guangdong is one of the world’s main centres for mould making, with mould steel, standard components and hot-runner systems available close by. We ship moulds, moulded parts and assemblies to customers in more than 20 countries.
2000
Established
1300T
Presses from 50 to 1300 tons
8500 g
Max. shot weight (PS basis)
90%
New moulds approved after T1/T2 trials
Everything from one mould manufacturer
- DFM report and mould flow analysis with the quotation
- Full 3D mould design, approved by you before machining
- Own tool room: CNC machining, EDM, wire cutting and grinding
- T1 samples in 3 to 30 days with a dimensional report
- Moulding production on 50–1300 ton presses
- Finishing, assembly and export packing
Buying moulds from China
How we take the risk out of sourcing tooling overseas
We sign a non-disclosure agreement before you send files. Steel grade, hardness, mould base standard, hot-runner brand and expected mould life are written into the quotation, and steel certificates are available. Moulds are built on LKM, HASCO or DME bases, so spare parts are easy to source wherever the mould runs.
You agree the milestones with one project engineer – design freeze, steel order, T1 and sample approval. Once paid for, the mould and its design data belong to you: we can run production for you, or trial the mould, protect it against rust and pack it in a wooden crate for your own factory.
Industries we build moulds for
- Automotive exterior, lighting and interior parts
- Medical disposables and device housings
- Electrical and electronics housings
- Home appliances
- Household products, furniture and toys
Buying injection moulds from China: FAQ
Are you a manufacturer or a trading company?
A manufacturer. Mould design, tool making, moulding on 50–1300 ton presses, secondary operations and assembly are carried out in our own plants in Huizhou and Dongguan, Guangdong.
Can you build a mould to run in our own factory?
Yes. Export moulds are built to your press specification and standards, trialled on our presses, protected against rust and packed in wooden crates, with drawings, spare parts lists and trial samples.
Who owns the mould and the design data?
You do, once the mould is paid for. You can keep it with us for production or move it.
Will my design be kept confidential?
Yes. We sign a non-disclosure agreement before you send files, and project data is only shared with the engineers working on your project.
What do you need for a quotation?
A 3D model (STEP or IGES preferred) or drawing, the material, annual quantity, colour and finish, and any critical dimensions or standards that apply.

