The Home of Plastic Machining UK

Go To Plastic Machining. Or  Plastic Fabrication.

Click the links below for more information on machining options!

About Us

While established in 1989 Sentinel Plastics Ltd is an Industrial Engineering Plastic Machining UK and Fabrication company. Having a long history of supplying plastic parts to industry the company has accumulated invaluable knowledge to service modern day demands. A major part of the companies continued success story is the flexibility to meet customer requirements and move with the times. Sentinel Plastics Ltd

Ideally Positioned For Your Plastic CNC Machining Requirements

Being strategically based in the West Midlands, UK. Sentinel is a business that supplies companies all over the UK and Europe. Also most noteworthy; Sentinel has customers in China and the USA. Having an already large customer base, among whom it can boast many long term blue chip customers. Sentinel is currently attracting large amounts of extra business, due to a very active and successful marketing period.

Furthermore; we have 8 No CNC Machines, which includes a Mazak VCN 530C with 5 No XYZ 1020 VMC. Also 2 Bridgeport’s VMC plus 2 ProTurn Lathes and a Mazak Mill/Turn. These are just a few of the machines that are available to produce Quality plastic CNC components.Sentinel Plastics Ltd


Included in the extremely large amount of Engineering Materials,which fall under Sentinels capabilities, include, but are not limited to  PEEK, PTFE and Nylon, with Acetal, Tufnol, and GPO3.

Sentinel Plastics Ltd In House Fabrication

Without doubt, Sentinel Plastics fabrication capabilities takes many forms. While being able to Weld and bend Polypropylene, PVC and Polycarbonate. Adhesives and Folding/ Line Bending other materials such as Perspex, ABS, PVC and PETG. Assembly also takes place with fixings or adhesives of Polycarbonate, PETG, Polypropylene and PVC.Plastic Machining - Plastic Fabrication

Sentinel Plastic Engineering Only Supplies Bespoke Parts

Furthermore, all parts manufactured by Sentinel Plastics Ltd, are customer specific bespoke plastic cutting parts. Either working from Prototypes, drawings, making a One off or hundreds of parts. Sentinel Plastics has flexibility to meet most requirements.

Sentinel Plastics Ltd Can Machine Large Plastic Parts

The place to come for large or small plastic cutting on one of a growing number of flat bed CNC Routing machines. All our table sizes are 3Mx2M which gives us the capability to manufacture economically. And will meet the largest size requirements.

As plastic machining specialists, we offer machining and plastic fabrication services for single units or large quantities. Also, using a wide variety of engineering plastic materials from stock, as well as being a plastic sheet supplier.

Whether you supply a finished drawing, sketch, template or sample we will ensure the result will be a quality product.

If you want it machined, bent, drilled, fabricated or polished we will be able to help.


Its important to note, we have the latest CNC machinery, up to date, state of the art cad cam software and modern tooling which enables us to produce excellent surface finishes whilst working to the tightest tolerances the material allows. Thus, we are happy to produce and quote for components using anything from 2D hard copy drawings through to 3D cad models and can also reverse engineer from existing parts.

Commonly, we supply many bespoke plastic conveyor and change parts for use in automation applications within the bottling, packaging, printing, food processing and materials handling industries.

Experienced Precision Plastic Machining

Precision machining plastics is very different to machining metals, and requires a very different approach in terms of tools selection, cutting paths, numbers of passes, cutting speeds, pecking, reaming and multiple other factors. The first step to this is a precise heat treatment protocol for the plastics to pre-shrink the base material and de-stress it. Throughout the machining processes we also conduct many first-off inspections and annealing cycles to ensure quality is built into and maintained in all components. When dealing with transparent plastics such as Acrylic / Plexiglas / Lucite (PMMA) or Polycarbonate, any minor errors or marks are immediately visible, so visual inspection stages are built into the process at multiple points.

Blue Chip Market Suppliers

Sentinel precision machine plastic components for blue chip customers operating in the medical, specialist industrial and high end power control markets. The company has a reputation for supplying quality plastic component parts on time, right to drawing and at competitive prices.

Sophisticated data manufacturing procedures, track customer’s products throughout the manufacturing process. 


Supplier Approvals

Sentinel is considered a category A supplier by many of our customers. To support these customers, and the fluctuation in their build plans, Sentinel operate scheduled supply agreements. Which then allows customers to call finished goods from stock.

Schedule supply agreements allow Sentinel to optimise the manufacturing process. Which in turn, reduce the manufacturing costs and ensure the most efficient supply of finished parts to our customers.


At Sentinel we produce high quality, precise plastic components to all industries across the UK. Whether it be a one off or a run of thousands. The standard, consistency and attention to detail will not be compromised. We can produce anything from simple wear strips, to complex 3D components, in an extensive range of materials including. Including, but not limited to, Nylon, polypropylene, acetal, Delrin, UHMWPE, HDPE, PTFE, PEEK, acrylic, PET, Tufnol, PVDF and polycarbonate.

Sentinel Plastics Ltd - Plastic Machining

In Conclusion:

Finally, we can offer products to suit any application within a large variety of industries. Whether a bespoke single unit or a batch of thousands is required. Our UK wide customers benefit from our skills, experience, flexibility and attention to detail. Also, our turnaround times cannot be beaten whether you are local or elsewhere in the UK.


Finally, Sentinel Plastics Ltd is versatile, experienced, flexible, always aiming to be as helpful as possible. If its plastic cutting that does not constitute Molding or Extruding then there is a good chance we can help!  

Sentinel Plastics