Sentinel Plastics Ltd is an engineering company specialising in the CNC plastic machining, and fabrication of all types of industrial plastics to customer specifications, based in Cradley Heath, West Midlands.

We are respected plastic fabricators of high-quality guards, screens, bespoke acrylic display, insulation plates, bearings, clamps and scraper blades and many other types of machined and fabricated components, which are required for use in a wide variety of industries and need to be made from industrial type plastics.

Close to the motorway network in the centre of the West Midlands, we are located 5 minutes away from either junction 2 or 3 of the M5 motorway. We are ideally suited to distribute goods nationally on an overnight basis.




Sentinel Plastics offers cnc machining facilities which include Milling and Routing on up to 3000mm x 2000mm beds.

Other machining capacity includes:

  • Plastic CNC Milling,
  • Plastic CNC Turning,
  • Plastic CNC Routing,
  • CNC Drilling
  • Fabrication/Bending
  • Gasket Cutting
  • Saws
  • Guillotines
  • Manual Routing
  • Manual Polishing

Specialising in large or small Routed shapes.

We offer our services worldwide and can offer a very rapid response in the local area. We regularly service our West Midlands clients in Birmingham, Bilston, Brierley Hill, Darlaston, Dudley, Oldbury, Sedgeley, Tipton, Wallsall, Wednesbury, West Bromwich, Willenhall and Wolverhampton, in fact anywhere across the West Midlands.


Sentinel Plastics has many years experience in all types of Plastic Fabrication, including Polycarbonate, Acrylic, PVC and most other thermoplastic materials.

Applications such as Point of Sale, Machine Guarding and Switchgear Blast shields are where you will regularly see our skills and reliability displayed.


At Sentinel we service a wide range of industries. The list includes Power Control and Switchgear, GE, Alstom, Linde, Schneider, (Shrouding and Insulation plates). Automotive and Aerospace (Covers, Buffers and Bearings). Point of Sale (Acrylic Display). Craft (Templates). Food and Conveyors (Screens, Guards, Rollers, Bearings and Scraper Blades).

Many components now being manufactured for the building of renewable energy projects.

*SubSea(PP Parts, Polyethylene Parts)
*Electrical (Polycarbonate Guards, Shrouds, Covers, Shields, Insulation)
*Automotive (Nylon Bearings, P.T.F.E Bushes, Acetal Parts, ABS and PEEK)
*Aircraft (FR Polycarbonates, Glass filled Nylon, Epoxy Glass, GP03 insulators)
*Medical (Fabricated PETG Shrouds and Guarding)
*Arts & Crafts (HDPE Pressed templates)
*Food Industries (FDA Food Compliant materials PE500 & PE1000)
*Construction (PVC Excellent Chemical Resistance and a UL94 V.0 rated)


  • 4 CNC Routers 3Mx2M beds,
  • 8 CNC Milling Machines,
  • 6 CNC Turning,
  • Cold and hot folding fabrication facilities,
  • 2 Saws,
  • Drilling,
  • Presswork,
  • Sub Assembly, Inserting, Finish treating, Welding, Polishing.


39 Wrights Lane
Cradley Heath
B64 6QY
United Kingdom
Number of employees
31 - 50





    ISO 9001


Plastic Engineering from Sentinel Plastics Ltd

08 Apr 2021 by Sentinel Plastics Ltd
Plastic Engineering CNC Machining

Plastic Engineering Company

To begin, it's important to stress, Sentinel Plastics Ltd emphasis, and strength, is on the importance of being a plastic engineering company that offers a comprehensive, custom engineering plastic component parts, specialist supplier. Thus, able to manufacture customer specific component parts to customers exacting requirements. Moreover, manufacturing these parts from many of the huge range of materials available to the customers design teams.

Uk Plastic Machining Nylon - Machining Plastic Companies UK

04 Mar 2021 by Sentinel Plastics Ltd


Can You Machine Nylon - Yes, Plastic Machining Companies UK does.

Cutting tools rely on the rigidity. Not only of the tool but also the material being cut.

So, In the case of cutting metals, the materials' natural rigidity is good. Therefore, the component resists distortion when the cutter (saw, drill or machine bit) cuts the metal.

Capacity Increased for Plastic Machining

13 Jun 2018 by Sentinel Plastics Ltd

With the arrival of their latest Mazak, Midlands based Sentinel Plastics increase their plastic machining capacity which in turn, also improves their lead times and flexibility. This is second of 3 new arrivals planned for the early part of 2018.

Bringing Heaps Of Experience In Quality Plastic Machining

27 Oct 2017 by Sentinel Plastics Ltd
New Employee

Sentinel recently added another CNC Machining member of staff to its already experienced team. Joining our CNC Plastic Milling section, Craig brings with him many years of high quality programming and machining knowledge. Adding Craig's huge technical ability to the experienced Quality Plastic Machining Staff already in place, offers more capacity and improved efficiency.

Supplying Quality

24 Feb 2016 by Sentinel Plastics Ltd
Machining Plastic Parts

CNC Machining capabilities enable high qualty precision parts!