Precision CNC machining: Transforming plastic components

Enabling highly accurate, tailored and repeatable plastic components.

Close-up of a CNC mill in progress at Oadby Plastics
CNC Milling

We don’t just supply high-quality semi-finished plastics; we engineer solutions. As a leading UK plastic stockist and supplier, we offer engineering and semi-finished plastics, expertly machined and delivered to businesses across the country.

As a leading UK plastics machinist, we know that precision and quality count in modern engineering. Whether it’s a high-wear guide rail for a conveyor system or a complex manifold for a chemical processing plant, the transition from stock to precision requires a deep understanding of our materials and cutting-edge technology.


The art of CNC machining

Precision CNC plastics machining is vital when producing high-quality, engineered parts. Unlike metal machining, where heat dissipation is managed through mass and coolant, plastics require a more refined approach. Our engineering plastics have higher thermal expansion rates and lower melting points than their metal counterparts, so if handled and machined in the same manner as metal, there is a risk of deformation, internal stress, and poor surface finishes.

Our approach combines decades of technical expertise with the latest in 5-axis and 3-axis CNC technology. This allows us to achieve the tightest tolerances, ensuring that every component we produce meets the exact specifications of industrial projects.

 

Why does precision machining matter?

Large scale, no errors: For industrial-sized rollouts, every part must be identical. Our CNC processes ensure that the 1,000th part is as accurate as the first.

Complex solutions: CNC machining allows for intricate designs — undercuts, internal threads, and complex curves — that injection moulding often cannot achieve without expensive tooling. Need assistance for providing technical drawings? Our in-house team can help.

Integrity of materials: Unlike 3D printing, which builds layers, CNC machining carves components from solid, extruded blocks of our materials.  This preserves the structural integrity and mechanical properties of the engineering plastic.

Selecting the right plastics for the job

Precision machining is only effective if the material is fit for purpose. This is why choosing the right plastic is the critical first step in our process.

Material Group Common Applications Key Machining Benefit
Engineering Plastics
(Nylon, Acetal)
Gears, bearings, bushes Excellent stability
High-Performance
(PEEK, PTFE)
Aerospace, medical Maintains precision at extreme temperatures
Wear-Resistant
(Polyethylene)
Bottling plants, conveyors Low friction and high impact strength

Unsure of the right plastic for your project or need further information, contact our expert team for help.

Machined components by Oadby Plastics

Quality and efficiency, every time

As a dedicated UK plastics machinist, we’ve invested heavily in an infrastructure that prioritises both quality and lead-time efficiency. Our facility is designed to handle everything from singular components to high-volume production runs, with rigorous quality control to ensure your product meets specifications.


Improving reliability in industrial environments

In many industries, such as food processing, pharmaceuticals, and machinery, a component failure can lead to costly downtime. Precision machining improves reliability by:

Reducing friction: Smooth surface finishes reduce wear on other parts

Ensuring fit: Tight tolerances help to prevent vibration in mechanical assemblies

Stress relieving: Our machining processes take into account the internal stresses of extruded plastics, often involving annealing stages to ensure the part remains dimensionally stable over its lifespan

Partnering with a specialist UK plastics machinist

Our end-to-end service, from material selection and stock supply to final precision machining, ensures a seamless supply chain. By providing a full-service, we reduce lead times and ensure consistency and quality.

 

Elevate your next project

Whether you are looking to replace a heavy metal component with a high-performance plastic alternative or you need a bespoke solution for a challenging environment, our team is here to help – contact us today.

Hands holding a machined plastic component

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