Unrivalled Experienced Plastic Machining

Experienced Plastic machining of turned parts and milled components.

CNC Machined Plastics - Plastic Component Manufacturers - Experienced Plastic Machining

With, many enquiries arriving on our sales teams desks every day. Customers can rely on the quality of, and experience of, Sentinels team members. Thus, this enables customers requirements to be expertly handled from those initial enquiries to final despatch. In addition, a production control system which, in conjunction with a robust quality system, enables close and accurate monitoring of each and every order.

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Plastic Turning - Experienced Plastic Machining

Experienced Plastic Machining Turned Parts

Firstly, referring to most engineering plastics, when turning you can go extremely quickly with your feeds and speeds. Examples of which are Acetal, Nylon, PTFE, ABS, PVC and so on. Most noteworthy, in most but not all cases, the chips stay together, forming a ribbon and are easily removed from your machine. Also, your tools won’t dull or wear (practically not at all). Standard high speed steel will be ample for turning every day engineering plastics. Whereas, Insulation industrial plastics require far more specialist care and techniques.

Next, it’s worth noting, you don’t need machining fluid. That is to say, the surface finishes obtained, feel and look great. Also, high standards of tolerance and finish are achieved. Also, tools that cut steel or aluminium will generally work very well with most plastics. So much so, in many cases, there are no special tooling requirements. Hence no added tool costs to pass on.

Delrin Machined components - Experienced Plastic Machining

Experienced Plastic Machining Milled Parts

Similarly, for milling most plastics, the above can be applied. Hence, the Engineering plastics milled, are again, fast speeds and feeds, with some exceptions and individual preferences. Moreover, when milling plastic, it can be less problematic than turning. Mainly due, to the lack of a ribbon, continuous swarf, being generated. Importantly, Sentinel has a large capacity milling capability. Also, with many machines dedicated to specific materials to prevent cross contamination. Also, as with turning, no coolants are required. Indeed, the use of coolants can be detrimental to many insulation materials.

Experienced Plastic Machining All Plastic.

So, ultimately, Sentinels experienced plastic machining capabilities, enable complex specialist components to be produced in all plastic materials. Certainly, virtually all Industrial laminated Materials available today can be Machined and Fabricated at Sentinel.
Above all, offering customers a wealth of knowledge, on the huge range of plastic materials in sheet, rod, fabricated and machined form.

Certainly, Industrial laminates are different to engineering plastics. Mainly, as they are thermosets as opposed to thermoplastics. This means that during production they experience a chemical change and become set, hard solids that cannot be melted or remoulded once they have been cured. Engineering Plastic.
Available in Copolymer and Homopolymer grades. A dimensionally stable material with good electrical properties and abrasion resistance. A range of polyofins Engineering Plastic also referred to as PE300, PE500 and PE1000. Used in various applications from pipe fittings, wear strips to conveyor systems in food processing environments.

Vastly Experienced Plastic Machining High Performance Materials

PTFE (Polytetrafluoroethylene) Engineering Plastic
Very good resistance to low and high temperature (up to 260°C), with low flammability and low friction coefficient. Available in a variety of filled grades.

PEEK (Polyetheretherketone) Engineering Plastic
Excellent mechanical strength, dimensional stability, a low coefficient of friction, very good chemical resistance.

Experience in all Plastic Machining Materials 

Significantly, when asked, most anything can be produced. For example, simple wear strips, to complex 3D CNC turnedCNC milled and CNC routed components. These, all produced from the huge, extensive range of plastic materials available to today’s consumer. Including, but not limited to, PolypropyleneDelrinUHMWPEHDPEAcrylic, PET, PVDF and Polycarbonate

Also, included in the extremely large amount of Engineering Materials, which fall under Sentinels capabilities, include, PEEKPTFE and Nylon, with AcetalTufnol and GPO3.

Contact the Experienced Team at Sentinel Plastics Ltd

Importantly, Sentinels emphasis has always been on the importance of offering a comprehensive experienced plastic machining workshop. Reliably, able to manufacture component parts to customers exacting requirements. Most notably, many plastic companies only CNC machining specific materials. Whereas, Sentinel has a comprehensive knowledge on all types of plastics and the required methods of manufacture. Right now, Our Team is ready to help with your requirements.


Significantly, Sentinel have 15 No CNC Machines, which includes 2 Mazak VCN 530C with 5 No XYZ 1020 VMC. Also 3 Bridgeport’s VMC plus 2 ProTurn Lathes and a 2 Mazak Mill/Turn. These are just a few of the machines that are available to produce Quality plastic CNC components.

Contact us for your quick quote or speak to an experienced member of our team.

Finally, peruse the website, drop your enquiry on an email or please do give us a call.

01384 633082

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