All the parts we manufacture at Sentinel Plastics Ltd are custom‑made plastic components, designed specifically to meet each customer’s exact requirements. Whether I’m working from prototypes, detailed drawings, or even just a description, I can produce anything from a single bespoke piece to large batch quantities. My goal is always to stay flexible and adaptable, ensuring I can meet any project’s demands efficiently and to the highest standard.

It goes without saying that choosing a knowledgeable manufacturer for any plastic CNC machining project is crucial to its success. Working with plastics requires specialised expertise to avoid costly defects or product failures. That’s why, as a dedicated plastics company, I focus on providing clear guidance and support — helping you navigate the wide range of materials available and select the best option for your specific application.

At Sentinel Plastics Ltd, we have the technical expertise and industry experience needed to produce high‑quality, cost‑effective components from a wide range of plastics. Whether you need a one‑off prototype or a high‑volume production run, we’ll work closely with you to turn your design into reality.

To find out more about our CNC plastic machining capabilities or discuss your project in detail, get in touch with us — we’ll be happy to help or provide a tailored quotation.

At Sentinel Plastics, we’re always striving to deliver an excellent and reliable service — something our long‑standing and loyal customer base confirms we consistently achieve. Our reputation has been built over many years, supported by a team whose members each bring 30 to 40 years of experience in plastics engineering.

Just as importantly, we back our expertise with a robust, approved quality system, ensuring every customer receives components that are delivered on time and finished to the highest possible standard.

Many plastic materials offer their own unique advantages in machining, and I always take these into account when recommending solutions. Some of the most commonly used plastics in our machining operations include:

UHMW (Ultra‑High Molecular Weight Polyethylene) – chosen for its excellent machinability.

Nylon – valued for its affordability, strength, durability, and resistance to corrosion and chemicals.

Polycarbonate – selected for its formability, high tensile strength, and resistance to cracking and abrasion.

PEEK (Polyether Ether Ketone) – used where exceptional chemical and wear resistance and high‑temperature performance are required.

To ensure a successful project, it’s essential to match the right material with the right machining approach. When you’re planning a plastic machining job, I can help you evaluate the key factors and guide you towards the most suitable combination for your application.

We use cutting‑edge CNC machinery to craft precise plastic parts and components to the tightest tolerances. Our extensive machining capabilities allow us to take on projects of any scale or complexity.

Our core services include:

CNC machining operations
Milling of plastic components
Drilling
Turning
Routing of plastic sheet materials

And much more, tailored to your specific requirements.

Whatever your needs, I’m always focused on delivering accuracy, consistency, and the highest quality finish in every component we produce.

At Sentinel Plastics Ltd, we are an ISO 9001:2018‑certified CNC plastic machining and fabrication company. When customers partner with us for their plastic machining needs, they gain the advantage of over 30 years of experience in CNC manufacturing, supported by our deep knowledge of specialised, engineering, and industrial plastics. With our large machining capacity, advanced technical expertise, and sub‑assembly manufacturing capabilities, we offer a complete and flexible service. Because we focus exclusively on plastics, our processes remain precise and efficient, free from the variability that comes with metalworking. This specialised focus allows us to provide quick turnarounds, late‑stage modifications, and the most cost‑effective pricing in the industry. These qualities enable us to meet even the most challenging design requirements while continuing to build lasting partnerships with our customers across the UK and beyond.

At Sentinel Plastics Ltd, we are an ISO 9001:2018‑certified CNC plastic machining and fabrication company. When customers partner with us for their plastic machining needs, they gain the advantage of over 30 years of experience in CNC manufacturing, supported by our deep knowledge of specialised, engineering, and industrial plastics. With our large machining capacity, advanced technical expertise, and sub‑assembly manufacturing capabilities, we offer a complete and flexible service. Because we focus exclusively on plastics, our processes remain precise and efficient, free from the variability that comes with metalworking. This specialised focus allows us to provide quick turnarounds, late‑stage modifications, and the most cost‑effective pricing in the industry. These qualities enable us to meet even the most challenging design requirements while continuing to build lasting partnerships with our customers across the UK and beyond.