Plastic Injection Moulders - OGM

We pride ourselves in producing high precision, technical Plastic and Thermoplastic Injection Mouldings and Assemblies that meet the precise requirements of our clients.

+44(0)1865 844300 phone icon
We provide total manufacturing solutions for precision plastic injection moulding
We have an enviable record of supplying injection mouldings to blue-chip clients
Our state-of-the-art factory is one of the most advanced plastic injection moulding facilities in the UK
With 50 years of experience, we’re one of the leading injection moulders in the UK
Our constant focus is to make injection moulding and assembly processes more efficient and reduce waste
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Toolroom equipment and capability
Our in-house toolroom is equipped with the latest technology, and is staffed by experienced mould toolmakers who work closely alongside our design team. Our tooling manufacturing capabilities extend from soft prototype tools through simple single impression P20 steel tools, to fully hardened steel multi-cavity full hot runner tools. The toolroom also fabricates prototype and development mould tools and jigs, fixtures and gauges for production.

Our toolroom offers all the principal toolmaking capabilities of spark erosion, CNC machinery, wire erosion and grinding and turning. We have instant access to a highly-skilled resource that is able to offer a rapid response to any requirement - eg tool modification or repair. Our tool maintenance programmes use service interval levels based either on frequency of production run or on number of shots made. Our Tooling Database tracks your tool through its life recording all modifications, repairs and tool work carried out on it. This history provides invaluable information for improvement in design if the component is re-tooled and generally to further our knowledge of what works and what doesn’t. 

Tooling design
Our Tooling engineers specify how each tool will be manufactured, ensuring correct steel selection and feed location for optimised mould fill and best cooling and ejection methods. Our designers use 3D CAD software to review your designs, assessing their suitability for manufacture. Every mould tool design goes through a multidisciplinary team for sign off ensuring all our expertise is used to vet it before it is manufactured and sampled. Our robust systems provide transparent reporting from the point at which an order is placed and cover the design review process, tool specification, general approvals stage, and sampling and modification stages, continuing to full part approval. 

The experience of our toolmakers adds value to our design consultancy and tooling development functions – as tooling staff work closely alongside our Design team to contribute their views from a tool-making perspective. Click here to find out more about OGM’s design and development services.


Owen Greenings and Mumford Limited
 Oxford Industrial Park, Mead Road, Yarnton, Oxfordshire, OX5 1QU, United Kingdom.

Tel: +44 (0)1865 844300
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