Denroy Plastics Ltd

Denroy Plastics Limited is a progressive manufacturing company specialising in the design and manufacture of custom moulded products.

Denroy is Ireland's foremost supplier of precision injection mouldings, specialising in the manufacture of components for a range of industry sectors including: 

  • Military & Civil Aerospace
  • Defence
  • Automotive
  • Construction
  • Consumer Products
  • Teletronic
  • Medical

Design and prototyping

We pride ourselves in offering clients a single source solution in managing a project from conception to full volume production. Services include:

Design and prototyping

Design services

Design is at the heart of every great product, and Denroy Plastics Ltd has a comprehensive design facility, including 4 high-powered Workstations, running a variety of Computer Aided engineering packages.

Specialising in the design and manufacture of plastics injection moulded components for a variety of markets Denroy's technical team work closely with customers from initial concept giving advice on component design for ease of manufacture and also assistance with material selection. Denroy's close links with raw material suppliers ensure the optimal solution to satisfy customer specifications. This approach reduces the timescale from concept design to market.

Starting with your initial concept, product ideas are channeled through Design for Manufacture viability studies to a finished 3D CAD model. This can be tested for good moulding results, using in-house analysis, and reiterated back to the CAD model.

Designs can also be sent directly to our toolroom, via our secure internal network, for rapid machining or tool and fixture manufacture. Years of technical moulding experience are brought to bear in the initial stages of each project to make sure that you get the shortest lead-time possible.

Design services

Tooling services

A toolroom with more than 3,000 proprietary tools is indicative of the vast experience which Denroy Plastics has accumulated in this sector.

In addition to supporting the design and manufacture of new injection mould tools, we also offer a highly effective repair and modification service to outside companies on a sub-contract basis.

When the occasion arises where we need to supply a tool from another source, we work seamlessly with the specific tried and tested toolmakers in Europe and Asia, and take full responsibility for the project from start to finish.
In-house tooling services include:

  • 3-Axis High Speed Machining
  • EDM Spark Erosion
  • Delcam's Powershape and Powermill
  • A Direct Internal Secure CAD/CAM Link
Tooling services

Moulding Facilities

Our modern manufacturing facilities offers 34 injection moulding machines (including twin shot moulding) with capacities from 5 to 800 tonnes and encompasses the latest software for process set-up and repeatability.

Robotic handling equipment is incorporated to maximise high quality output through consistent cycling.

Extensive secondary processes are carried out including sub-assembly, pad printing, hot foil stamping, spray painting, bristling, tipping, ultrasonic welding, routing and vacuum annealing.

Considerable use is made of ERP software for all forecasting, scheduling and order processing requirements. The recently acquired "In-house" monitoring system enables constant tracking of all shop floor activities therefore reducing production run times and failures.

Moulding Facilities


At Denroy Plastics Ltd, our manufacturing capabilities are not limited to injection moulding alone.

More and more customers are entrusting us with operations which add value to the core product. And we are happy to take charge of these secondary processes too, giving them the same care and attention which we apply to design and moulding.
Additional services which we can provide include:

  • Assembly (Mechanical and electrical)
  • Packaging
  • Kitting
  • Pad Printing
  • Hot Foil Stamping
  • Spray Painting
  • Bristling
  • Tipping
  • Ultrasonic Welding
  • Routing
  • Vacuum Annealing

We can also deliver your product using JIT and Kitting techniques (with full batch traceability) if required



Quality in every area of the business has always been a cornerstone of the Denroy ethos. In addition, we are proud to hold accreditation from a number of world-renowned customers
Quality Approvals

  • ISO9001:2000 BSI
  • AS9100 BSI for aerospace components (Cert No. FM14106)
  • UL(QMMY2:E21290) for plastic components
  • ISO13485 BSI for medical devices (Cert No. MD515263)

Customer Accreditation

  • Airbus UK
  • BAe Systems
  • BAe Systems (Regional Aircraft)
  • Bombardier Aerospace
  • NACCO Materials Handling Group
  • Rockwell Collins
  • Thales Air Defence

Denroy Plastics Ltd Overview