Injection moulding
Our core discipline. Production on 100 to 600 tonne presses, held to drawing run after run.
01 / Overview
From small precision parts to large structural mouldings.
We run Billion and Haitian presses from 100 to 600 tonnes, with robot arms and conveyors, for parts from 1 gram up to 4 kilograms. Tolerances stay tight and the finish stays consistent from the first batch to the last.
We mould polycarbonate, polypropylene, polystyrene, ABS and nylon. We are known for high quality clear parts. Bring us a new part, or move an existing tool to Ertone and we will get it back into production.

02 / Inside the tool
How a part is made.
- 01
Inject
Molten plastic is forced into the closed tool under high pressure.
- 02
Cool
The plastic sets in the cavity and takes the exact shape of the tool.
- 03
Open
The moving half pulls back, taking the part with it on the core.
- 04
Eject
Ejector pins push the finished part off, and the tool closes for the next one.
Scroll to run the cycle
03 / Capabilities
What we offer.
Low to high volume
Short runs through to high volume production.
Repeat production
Parts held to drawing run after run.
Concept to production
From a drawing, sample or concept through to a proven production tool.
04 / At a glance
Key facts.
- Clamp force
- 100 to 600 tonnes
- Part weight
- 1g - 4kg
- Presses
- Billion and Haitian, with robot arms
- Materials
- PC, PP, GPPS, ABS and nylon
05 / Questions
Frequently asked questions.
01What presses do you run?
Billion and Haitian presses from 100 to 600 tonnes, fitted with robot arms and conveyors.
02What size components can you produce?
Parts from 1 gram up to 4 kilograms. That covers small precision components through to large structural mouldings.
03Can you mould clear parts?
Yes. High quality clear parts are one of our strengths. Tell us the finish you need and an engineer will advise on material and tooling.
04What volumes can you run?
Anything from short runs to high volume repeat production, held to the same drawing every time.
06 / Related services
More from Ertone.
Tool manufacture
Every moulding starts with a tool. We build new ones or take on yours.
View service 02Design and prototype
Get the design right before the tool is cut and the moulding runs smoothly.
View service 03Secondary operations
Have parts printed, welded and assembled before they leave the factory.
View service07 / Get a quote
Let's talk about your part.
Send a drawing, a sample or the tool you already have. An engineer will review it and come back with a price and lead time.
- 01Send a drawing, sample photo or sketch.
- 02An engineer reviews it.
- 03You get a quote with material and tooling advice.
Prefer to talk it through? Call 01296 431482 or email enquiries@ertone.co.uk.