Pentagon Plastics Group

Pentagon provides extensive plastic injection moulding services and are a centre of excellence for mould tool servicing, repair, modification, pre-production development and production mould tools. Through our generous machine selection, we also provide a subcontract machining service. Based in Horsham, West Sussex our UK engineering business offers a wealth of technical knowledge and experience.

Providing customers with over 60 years of tooling expertise utilising manual skills, modern technology and technical tooling capabilities to deliver bespoke mould tooling solutions that guarantee repeatability and quality volume production.

Maintenance and Servicing

It is vital that tools are maintained and serviced at regular intervals to ensure that production demands can be met and that the tool continues to function in an acceptable manner. Preventative maintenance can help to avoid breakdowns which can prove costly in the manufacturing cycle.

To facilitate this work, we have developed a robust maintenance and service program to support our customers’ requirements. By working closely with them we can schedule the work to be completed at mutually convenient times to meet their production needs and our own capacity.

Repairs and Modifications

A mould tool is a significant investment, therefore it is important that when issues occur in production that the tools can be repaired efficiently to reduce the impact of breakdowns. We also find that many customers want to realise the best value out of their investment and look to up issue parts in a tool rather than invest in new tooling. When practical to do so they will replace an obsolete product with a new part utilising an existing bolster set and hot runner system.

Customers may look to adapt their existing tooling to enhance product designs or modify existing mould tools to produce up issued products. We are also experienced in the repair of existing tools when there is a breakdown or to re-instate cavities that may have been turned off in production due to cavity damage or perhaps water leaks.

Pre-production Tooling

We provide design assistance to some customers at the early development stages of a product, helping progress from concept through to production tooling. The process can follow many forms and the solution we recommend is bespoke to the project in hand.

We can manufacture dedicated pre-production mould tool solutions to support the development phase of a project and allow for material testing and exploration before finalising the finished component specifications.  Development tools can take different forms such as a basic Modular Insert System, Basic Mould Tooling or complex single cavity tooling with hot tip feed, offering a degree of flexibility for design change before investing in full bespoke mould tooling for volume production.

Production Tools

We pride ourselves on being able to manufacture complex mould tooling to exacting standards, with a high level of traceability and quality controls throughout the process.

Production tools would usually be manufactured with fully hardened tooling plate being used for core and cavity details as well as side movements and crucial shut out areas. We manufacture multi-cavity Hot Runner tools with complex forms as well as cold runner tools including single cavity and family tools in line with customer and component requirements.

Predominately the production tools we manufacture are run in our in-house mould shop (Pentagon Plastics Ltd) and are supported by our tooling team, tools are stored on-site and produce repeat production on press sizes up to 280 tonnes when required.  Some mould tools that are manufactured are shipped to customers for their own production management and we will always be on-hand for future, service, repair and maintenance of tooling when required.

 Sub-Contract Services

Some of the parts we produce include punch & dies, jigs, fixtures, gauges, nests and forming tools amongst others.

The machines that can be utilised are listed below and we provide the same high standard of engineering capability to this work as we do to the mould tools we build: –

• Jig Grinding
• Cylindrical Grinding
• Surface Grinding
• CNC Milling
• CNC Turning
• Wire Eroding
• Spark Eroding

Pentagon continues to go from strength to strength in UK mould tooling and you can rest assured that your tooling investment is in safe hands.