Bespoke Machine Parts: Plastic VS Metal

 Partwell plastic engineering plastics

The plastics and polymers industry has gown prolifically over recent years, a trend that looks set to continue. Many varied factors have fuelled the growth but one factor in particular is the replacement of traditionally-metal parts and components with plastic equivalents. Plastic has many advantages as compared to metal and here are just some of them:

  • Weight. Plastic can weigh dramatically less than an equivalent amount of metal, translating to savings in many ways from lower transportation costs to faster, improved machine performance. A plastic part could easily weigh half of an equivalent part made from steel or one-sixth of an equivalent part made from steel
  • Chemical Resistance: Plastic parts are much less likely to be damaged by chemical attack and are completely resistant to the damaging effects of corrosion
  • Machinability: As plastic is much easier to cut and shape than metal, machining plastic parts is quicker and more efficient
  • Negates Need for Painting: Parts can be made directly from plastic of a particular colour, preventing the need for a secondary operation of painting as with metal parts
  • Complex Designs: All kinds of shapes and surface textures can be directly incorporated into the tooling used to manufacture plastic parts
  • Quality: Particularly in regard to high-volume production, the tooling for plastic parts delivers extremely repeatable quality as compared to machined metal products
  • Longevity: In most applications, the lifespan of plastic parts is longer than that of equivalent metal parts
  • Cost: The price of raw plastic material is usually appreciably less than for metal
  • Sound: Plastic components produce less noise than their metal counterparts
  • Range of Options: Hundreds of different plastics are available, each suited to specific applications. The choice of equivalent metals is far more limited

Partwell Plastic Engineering specialise in the design, manufacture and supply of bespoke plastic parts, many of which have been reverse engineered to replace metal components. For an insight into our work, check out some of the case studies on our website and get in touch with our team for further information and to discuss your bespoke requirements.

1st September 2019, 10:05