R A Engineering Ltd was formed in 1974 designing and manufacturing Heat Exchangers and Filtration Systems.
By 1980 due to demand to solve problems of entrained water in Compressed Air Lines, designs were finalised and production commenced of the SD Pressure Swing Compressed Air Drier range.
By the end of the 1980's a range of High Pressure Gas Driers were being supplied to the M.O.D and specially modified
Drier Packages were supplied to off-shore drilling platforms.Major compressor rental companies were using the SD Pressure
Swing Driers both on-shore and off-shore for the testing of pipelines, it's robust design coped well with the rigours of the rental industry.