End-to-End Plastic Manufacturing: An Integrated Process


At Cox Wokingham, CNC Machining forms an essential part of a holistic plastic manufacturing process. This process, which leverages the diverse range of the capabilities available at Cox Wokingham, can be broadly summarised as containing the following stages of production:



The result of this holistic, integrated approach to the plastic manufacturing process is hassle-free plastic component manufacturing from a supplier who can act as a full supply chain partner.


This means comprehensive project oversight from the beginning to the end, with the experience and expertise of Cox Wokingham ensuring success within every stage of the process.


Put simply, the result is happy customers.


Now, to explore why our integrated process is effective, let us turn our attention to one specific and fascinating function of this overarching process: CNC machining.


What is CNC Machining?


CNC machining is a method of production that can be utilised to create highly detailed outputs. ‘CNC’ stands for computer numerical control – which refers to the method of machining used, whereby (via coding software) numbers are programmed into a computer. These numbers, which define the movements of the mechanical elements within the process, form the instructions dictated to the CNC machine so as to produce the desired outcome.


The numerical control aspect of CNC machining precisely determines where the machine will make its cuts when, for example, working on a flat panel production element. The instructions also define where any drilling or countersinking takes place and the specific dimensions that these actions follow. This means that the outputs produced by the CNC machining process are able to remain extremely close to complex specifications and drawing dimensions (which is to say that they are made to a remarkably tight tolerance). 


For instance, at Cox Wokingham, we have previously worked on crucial components within the aviation field – such as in creating parts used within the ejector seats of aeroplanes – where the machined outputs were produced to within a 0.01-millimetre tolerance. This level of precision and detail is absolutely essential when working on components that are to be used within fields where the margin for error is nonexistent.


The Benefits of CNC Machining


The ability of the CNC machining process to produce extremely precise outputs at incredibly tight tolerances arguably constitutes its primary benefit – ‘arguably’, because the method comes bundled with a host of other crucial advantages. CNC machining allows product designers to have the highest possible confidence that the specifications for production output that they create will be rigorously adhered to. 


The importance of this cannot be overstated as, put simply, outputs which are made precisely to specification will act the way they are supposed to when they are required for use. Say, for example, the components used across the aerospace industry were produced with a somewhat lacklustre attention to detail – the ramifications would prove catastrophic.


Moreover, related to CNC machining’s ability to remain in very close proximity to complicated specifications is another key advantage of the method, namely: the CNC process allows for the creation of highly detailed, multifunctional products. For example, the CNC machines available at Cox Wokingham have the ability to produce outputs via both 3 and 5 axis machining. Extra dimensions (axes) – planes of machine movement – result in CNC machining having the ability to add immense detail to raw production inputs. 


These details stem from CNC machining’s diverse capacities of operation, which includes everything from simple trimming, through to drilling, countersinking, and polishing. The multifunctional application of the CNC machining process itself is mirrored within the multifunctional products that the process creates.    


Thus, by utilising the myriad options available within CNC machining, it is possible to enhance a product’s finish with detail and precision – meaning it can be leveraged within a variety of real-world applications. For instance, as well as the aforementioned aviation components, CNC machining can be used to produce outputs as diverse as turbines, engine blocks, decorative items, tools, bus windows, and artwork – to name but a few.


CNC Machining at Cox Wokingham


At Cox Wokingham, we have invested heavily in our CNC machining capabilities over recent years so that, as well as the 3 and 5 axis machining available as discussed previously, we are able to process inputs over a large 2m x 1m bed size. 


Furthermore, by continually monitoring advancements in the CNC machining field (and making additional investment wherever appropriate), our acquisition of new technology means that we are now able to offer production which utilises a 20-position carousel. This allows for the efficient swapping of tools – such as drill bits and finishers – further extending the potential application of CNC machining in creating multifunctional products.

CNC Machining & Plastic Manufacturing Services from Cox Wokingham


At Cox Wokingham Plastics, we offer the full spectrum of services from Concept Support, Tool Making, Material Selection, Fabrication and Assembly to complement our Vacuum Forming, High Pressure Forming, and CNC Machining process. If you would like more information about what we do, or more help deciding which moulding option is best for you, please visit our website or contact a member of our team on Sales@CWPL.net or call 0118 977 4861 and ask for Iain Carstairs or Shaun Hamill. We at Cox Wokingham look forward to being of service to you.



Our approach is that every challenge is an opportunity to experiment, to innovate and to further our skills to the benefit of our customers.

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COX’s expertise in the planning and production of prototype pieces is your shortcut to the right solution. Right on specification. Right on practicality and performance. And right on budget.

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COX offers a comprehensive range of thermoforming services, including vacuum forming, press forming and line bending.

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As well as having the skills and experience to push the limits of High Pressure Forming, COX also offers the technology in the shape of its huge GEISS T10 Pressure Former machine.

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Through a wide range of high-quality Fabrication services, we have the facility to add extra value for our customers.

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Years of experience and application have given us an unrivalled reputation in advising on the properties and performance potential of a huge range of materials.

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Our design, toolmaking and manufacturing services are second to none. From solving complex CNC programming issues to creating intricate jigs and specialist fixtures, the first step of a successful project is speaking to COX.

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Our CNC machining capabilities are high on our list of specialisms. Whatever your requirements, we have the expertise and technology to develop the solution that’s exactly right for you.

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We offer our customers a range of assembly and sub-assembly services, including painting, screening and shielding.

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We can take care of all of your world-wide distribution requirements and export documentation.