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Compression Moulding

Cost effective production with short setup times.

Large Volume Supply
Accredited to ISO 9001:2015
WRAS Approved Products
Cost Effective UK Manufacturing


Industrial Rubber have been compression moulding since the company opened in 1975. Rubber compression moulding is a process that involves manufacturing parts from pre-formed rubber blanks using a heated tool in a hydraulic press. It can be a cost effective manufacturing process due to simple tooling required and short set up times. However, processing times can be slower and parts may require further product finishing.

Compression moulding process

The compression moulding process involves using pre-formed rubber blanks in the basic shape of the end product. The blanks provide a surplus of material to be placed in the cavity, this ensures a total cavity fill. The blank is placed in the mould cavity and the mould is closed, placed into a hydraulic press with heated platens which applies both heat and pressure to the blank which is compressed to fill the cavity. When the cavity is filled, excess material spills out or flows into overflow grooves. The cure cycle is then completed for the given time period. When the cure period is completed, the tool is removed from the press, opened and the product is de-moulded. The mould is then re-loaded with a new blank and process repeated.

Compression Moulding

Compression moulding at industrial rubber

Industrial Rubber have over 60 presses available for compression moulding with presses varying in pressure and pattern sizes. We compression mould parts in a whole range of polymer types and shore hardness, including exotic materials. Industrial Rubber can accommodate solid rubber compression mouldings with up to 500 tons of pressure with platen sizes 1070mm X 1070mm. We also manufacture our rubber sponge using compression moulding with presses which are capable up to 150 tons of pressure with platen sizes of 2250mm X 1250mm.

Why Compression Moulding?

Advantages of compression moulding

  • Extremely economical for the buyer
  • Less waste produced by manufacturer, working on exact specifications and rubber mould
  • Cost effective for tooling, and free issue tooling can easily be moved
  • Process many types of polymers, and those with especially hard, durable surface (high durometer)
  • Good for producing large, or thick rubber components
  • Low volume

Disadvantages of compression moulding

  • Increase in cure times
  • Manual loading and unloading process

Quality + competitive pricing = value for money

Contact Industrial Rubber Ltd

Have you got a project? Get in touch with us today!