Drawn and produced in early-1978 by Steve Rogers and Jim Parkinson, our first slip ring was a 100/9. This pioneered Flameproof Electrical Slip Rings for pedestal cranes and was for our customer, National Supply. As the name suggests, the unit contained 9 rings, rated at 660V max, 100 Amps max. It received its Baseefa Certificate of Assurance No. Ex 79032 and Ex 78251 in September 1978, and complied with the requirements of BS 5501: Part 5: 1977 (EN 50.018) in respect of Group IIB and Temperature Class T6.
This Slip Ring was drawn, manufactured, assembled, certified and delivered by Steve and Jim, and this hands-on knowledge is an important part of our heritage.
This unit was returned to us in 2012 for refurbishment, whilst the crane was on shutdown, and is back in service today!