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Custom Plastic Parts

Custom plastic parts from intricate designs to large scale components, using injection moulding, extrusion and assembly, with quality control and delivery supervised by us.

Three black moulded SBR rubber counterweight blocks with tapered profiles

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Where our plastic parts line makes a defined part, this line starts earlier, from a requirement rather than a finished drawing. Custom plastic parts are made to your exact specification, whether the design is intricate or the component is large scale, using injection moulding, extrusion and assembly as the geometry demands.

Product Photographs

Every image on this page is a photograph of parts we have produced.

Key Benefits

  • Parts made to your exact specification rather than adapted from stock
  • Intricate designs and large scale components both handled
  • Injection moulding extrusion and assembly available as the part requires
  • Quality control and delivery supervision carried out by us
  • Supplied alongside rubber parts of the same assembly

Problems It Solves

  • One size does not fit all, and catalogue parts do not match the design
  • Obsolete components with no remaining source
  • Plastic suppliers unwilling to engage below a certain volume
  • Quality and delivery follow up that falls back on the buyer

Who It Is For

  • Product developers moving from concept to tooled production
  • Engineers replacing a discontinued part
  • Buyers who need one supplier across plastic and rubber
  • Companies whose volume is too low for a plastic factory to engage directly

Application Scenarios

  • New product development needing a part that does not yet exist
  • Replacement of an obsolete plastic component
  • Extruded plastic profiles and sections
  • Assembled plastic sub components supplied ready to fit

What You Are Actually Buying

Only values our own records support appear here. Anything we cannot evidence is left out rather than estimated.

ProcessesInjection moulding, extrusion, assembly
ScopeIntricate designs through to large scale components
Design InputCustomer specification, drawing or sample
Our RoleInquiry, quality control and delivery supervision
Country of ManufactureChina

Manufacturing Process

  • Requirement review
  • Design and specification
  • Tooling
  • Injection moulding or extrusion
  • Assembly
  • Quality control

Technical Features

  • Injection moulding for solid components
  • Extrusion for continuous profiles and sections
  • Assembly operations where the part is multi piece
  • Versatility to create parts of a wide range of shape size and design

Quality Control

  • Specification confirmed in writing before tooling starts
  • Sample approved by the customer before series production
  • Quality control carried out at the supplier by our own staff
  • Delivery supervised rather than self reported

Customisation Options

  • Any shape size and design within the available processes
  • Injection extrusion or assembly chosen by the geometry
  • Developed from a specification rather than requiring a finished drawing
  • Supplied with the rubber parts of the same assembly

Where This Is the Right Choice and Where It Is Not

Compared With Plastic Parts

That line makes a part you have already defined. This one starts from the requirement and develops the definition with you.

Compared With 3D printed parts

Printing suits prototypes and very low volume. Tooled moulding is the route once quantity and repeatability matter.

Compared With Machined plastic

Machining avoids tooling cost and costs more per part. The crossover depends on volume, and we will tell you where it sits.

How to Specify and Order This Part

  • Send whatever exists, a specification, a sketch or a sample part

Send whatever exists, a specification, a sketch or a sample part

  • State the function and the environment as well as the geometry

State the function and the environment as well as the geometry

  • Give the annual volume so the right process is chosen

Give the annual volume so the right process is chosen

  • Approve a physical sample before committing to production

Approve a physical sample before committing to production

  • Agree tool ownership before tooling starts

Agree tool ownership before tooling starts

Related Products

Plastic Parts

We have three plastic production suppliers, and we handle the inquiry, the quality control and the delivery supervision ourselves.

Silicone Hot Water Bags

A hot water bag is a consumer product where the closure is the whole safety argument, which makes it a different sourcing problem from an industrial rubber part.

Rubber Moulds

We have our own mould manufacturing workshop and experienced structural design engineers, so we can independently design and develop rubber moulds rather than pass the work on.

SBR Rubber Parts and Counterweight Blocks

SBR is the compound to reach for when abrasion resistance and cost matter more than chemical range.

Related Guides and Industries

Compression Transfer and Injection Moulding for Rubber Parts

The moulding process decides tooling cost, cycle time and how much detail a part can carry. Choosing it is a commercial decision as much as a technical one.

What to Check Before Ordering Silicone Hot Water Bags

A silicone hot water bag is a consumer product with a safety dimension, which makes the sourcing checklist different from an industrial rubber part.

Custom Plastic Parts Questions

Yes. Tell us what the part has to do and we will work with you to define it before tooling.

Injection moulding, extrusion and assembly, chosen according to the part.

Yes, the range covers intricate designs through to large scale components.

We do. Quality control and delivery supervision at the plastic suppliers are carried out by our own staff.

Yes, and it is the usual reason customers bring both here.

Within one working day of receiving the requirement and the quantity.

Quote Custom Plastic Parts

Send the size or drawing, the working conditions and the quantity. One working day for a considered reply.

Product Photographs

Machined steel mould plate with a circular central cavity and guide pins

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