Stop troubleshooting and get moulding.

Solve the secret science to your engineering plastic injection moulding problems with equipment supplier and technical experts at Eastern Plastics Machinery™

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Black and white logo with stylized initials 'JG' and the text 'John Guest'

Our Clients

Johnson & Johnson logo in white script on black background
Black background with the white Molex company logo, consisting of the word 'molex' inside a circle.
Toyota logo in white on a black background

The Secret is in the

Science

Stuck troubleshooting and not hitting production KPIs?

Two workers in safety vests and helmets shaking hands in front of multiple large matsui industrial dryers in a factory setting.

Engineering plastic is complex and costly to get wrong. But sometimes no matter how many times you troubleshoot, you either can’t start production, KPI’s remain frustratingly low or competitive edge in product design reduces as design capabilities start to shallow.

Have you ever considered its not your product design or plastic material keeping you in troubleshooting, but the science behind your equipments build thats shrinking your operating window?

Eastern Plastics Machinery™ founders/technical engineers spent decades shadowing the mastermind creators of Japanese of all electric plastic injection moulding machine technology.

Spending the last 50+ years supplying a vast range of plastic injection moulding equipment from Europe as well as technical clarity, Eastern supports plastic injection moulding manufacturers end-to-end to lift the lid on some of their most complex moulding problems, and get into production increased in a matter of days not months.

From solving technical problems with the correct equipment recommendations all the way through to fast delivery, setup, technical support, spares and back-up of plug and play Japanese machinery, Eastern Plastics Machinery helps clients holistically with an end-to-end service all over Europe to:

  • Solve the most unique plastic moulding technical issues with the right equipment (with highly bespoke add ons)

  • Vastly drop temperatures and widen operating windows to dramatically increase production and design capability

  • Reduce production downtime needed for cleaning and breakdowns

  • Build full production cell’s from scratch to get into production fast

  • Ensure technology is Plug-and-Play and easy to use with very little training or additional controllers

Our Products.

Our Products.

Highly Bespoke, Better Design, Wider Operating Windows.

  • Our proud partner Japanese Steel Works (JSW) have the widest range of highly bespoke low and high tonnage all electric injection moulding machines for sale in the UK of any other provider in the market.

    Including Vertical Clamp Rotary Table, Magnesium and clamping force for up to 3,000 tonnes - with some available for delivery direct from Europe in as little as 2 weeks.

    Click here or the button opposite for full product details

  • Prone to degradation, engineering plastics can be challenging to mould.

    Our partners at Seiki realised standard hot runners built with 1 body temperature control ended up being the cause of degradation and productivity loss.

    They created a uniquely patented tip heater valve and probe hot runner design with a simple to operate gate temperature control to solve this problem.

    Click here or the button opposite to see how Seiki hot runners work

  • Engineering plastic is hydroscopic and absorbs moisture from the environment, failure to remove this moisture or the fines and dust prior to injection moulding causes common problems such as silver streaks, black specks and rejects that can ruin your production KPI’s.

    Our partners Matsui recognised standard drying systems were actually the cause of these common problems.

    Matsui cut drying time by half, keep production output constant and eradicate silver streaks and black specks, with their worlds first continuously cycling honeycomb desiccant rotor and hopper filtration system.

    Click here or the button opposite to see how Matsui dryers work

  • Your plastic moulding process is focused around 2 main things - speed and production levels. And once you’re producing parts, you may think that nothing could harm your process

    Born out of the pen industry in 1970 to speed up their own production of delicate materials, Sailor Robotics developed a uniquely patented harmonic curve in their robotics system speeding up production with less vibration in the chuck so that delicate products do not come loose and turn into rejects‍

    Sailor measured their ‘downtime due to failure’ in years not months unlike other European robots (making for a typical fix time every 5-20 years)

    Click here or the button opposite to see how Sailor Robots work

Highly bespoke cell setups and better machine design will make or break your operating window. And for complex designs and engineering plastics, this can be crucial to production.

We supply the widest range of bespoke all electric Japanese Injection Moulding Machines, Hot Runners, Ancillary, Feeders, Dryers and Robotics, with uniquely patented technology to widen operating windows delivering direct from Europe in weeks not months.

Click for Full Product Details

Trusted Supplier of

Japanase Steel Works Logo in black - JSW Injection Moulding Machine UK Supplier
Matsui logo in black letters with a letter '8' on it side with a white line striking through the middle - Matsui Dryers UK Supplier
SEIKI logo with the tagline 'Making the Impossible Possible.' - Seiki Hot Runner UK Supplier
SAILOR' logo in large white letters on black background and Japanese characters below - Sailor Robots UK Supplier

Supply and technical for holistic, unstoppable productivity.

Spanning three generations of passion.

Group of nine men including Ken Siddall standing and crouching outside in front of a large plastic moulding office building, some wearing suits and others in casual work attire, during daytime.
Group of three people in formal attire standing inside an injection moulding shop floor, posing for a photo. Two men and one women, with the woman in the center holding a handbag. Background includes machinery and other individuals.
Three men in a mid-20th century industrial setting, engaged in conversation, with machinery in the background, including Hideo Horiguchi and Chris Siddall
Two children, one called Michelle Siddall standing in a shop floor of injection moulding machines at Molex factory. The girl is smiling and holding a plastic part from a Nokia 3310 phone, while the boy is also smiling.
A man called Chris Siddall with light skin and short brown hair, smiling and crossing his arms, standing in front of a large, orange meiki plastic moulding industrial machine in a workshop.

Started by technical engineers - the late Ken Siddall in 1976, joined by his son Chris Siddall in 1978, and later joined by Chris’ daughter Michelle Siddall in 2025 - Eastern Plastics has been the leading UK supplier and technical support for Japanese Steel Works, Seiki, Matsui and Sailor Robots for clients all over Europe for over 50 years.

Flying to and from Japan for a decade throughout the 1970’s, Chris Siddall moved from his trade in jewellery and diamond mounting and trained as a expert engineer in Japan alongside mastermind of research and development at Meiki (part of Japanese Steel Works) Hideo Horiguchi at their laboratory and test centre in Kwagucci, Tokyo.

He developed a deep understanding how to building machinery cell’s from the ground up, developing patents, researching molecular materials and understanding the scientific reasons behind ‘why’ machinery throughout the injection moulding machine network react they way they do.

Holistic unstoppable productivity for plastics injection moulding manufacturers became Chris and Ken Siddall’s lifetime passion, and has helped solve some of the most complex injection moulding technical problems for some of the biggest clients across the fields of electrical, automotive, healthcare, medical and waterworks including Johnson & JohnsonJohn Guest and Molex.

Meet The Team

Contact Us

Interested in our products or would like to talk through a technical problem of your own?

Feel free to contact us via the below or complete our the form

Telephone: +44 1376 56 22 88
Email: info [AT] easternplastics.co.uk