Shot blasting
Campbell Machinery Ltd
Campbell Machinery: Specialists in shot blasting and blast cleaning
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Cleaning and decontaminating radioactive parts and equipment in nuclear establishments with the Decomatt System

Decomatt is today's answer for cleaning and decontaminating radioactive parts and equipment in nuclear establishments.

Proven in nuclear power stations throughout the world, liquid abrasive decontamination provides for, controlled cleaning and free release of components, tools and parts for reuse or for conventional disposal. Decomatt is a must for your volume reduction program.


Cleaning and decontaminating radioactive parts and equipment in nuclear establishments


Decomatt's principal is the bombardment of components or equipment with a high-volume recirculated flow of solid particles in water. The solid media stainless steel, aluminium oxide or glass beads does the decontamination work, but there is always a cushion of water between the component surface and the media particles. This prevents impregnation, surface damage and excessive breakdown of the media while removing the fixed or smearable contamination.




Unlike other equipment the Decomatt System contains all pressured abrasive delivery lines within the cabinet to completely eliminate the danger of leakage as a result of system failure.

In addition, the design minimizes space required which is at a premium in nuclear plants. This design maximizes the equipment which can be placed within your decon shop.


Design of the Decomatt System




Nuclear Safety Engineered Into Each System


  • The Decomatt System uses approximately 50 gallons of water and 75 pounds of inert abrasive - low waste volumes.
  • Cyclone separators, using automatic valves, remove solids from the slurry down to five microns.
  • Glove box stations can be provided with lead shielding and leaded glass for operator protection.
  • The Decomatt Pump System can be removed without draining the liquid in the sump.
  • Decomatt Systems are consructed from stainless steel to the relevant Q.A. standard.
  • The Decomatt Pump, located in the sump, allows all pressurized abrasive conduits and pumping elements to be positioned inside the process cabinet eliminating any potential for a spill or leak in the event of a system failure.
  • The lightweight process gun makes the machine much easier and less tiring for the operator.
  • Self-contained Hepa ventilation systems maintain negative pressure inside the cabinet.
  • Closed loop rinse systems can be provided which eliminates any water going to rad waste drains with the exception of periodic clean out.



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