q) Do the guards need to be interlocked ?
a) It depends upon the machinery in question and the results of the Risk Assessments that are carried out. Guarding should be fitted according to the heirachy found in P.U.W.E.R. (98) Regulation 11

q) Can I fit just a Spindle/ Chuck guard to my CNC Machinesa) No- CNC & NC machines must have interlocked guarding systems that prevent access to the dangerous parts of the machine during the automatic cycle. For setting purposes etc the safety system can be designed so that the machine will only operate at slow speed in “hold to run” conditions

q) Do I need to replace polycarbonate safety screens regularly.
a) Yes- the impact strength of polycarbonate deteriorates with age when in contact with certain fluids commonly used in manufacturing industry. The deterioration rate can be 15% per annum. TDT recommends that they are replaced every 3 years.

q) Can I use normal house hold cleaners to clean the Polycarbonate screens ?
a) No- many household cleaners contain ammonia or alcohol. This can react with the polycarbonate causing surface whitening or crazing. Polycarbonate cleaner is available. Contact TDT for details

q) Can I leave my machines unguarded if it means that I can show that I will be unable to do certain jobs if guards are fitted ?
a) No- Each machine should be subjected to a Risk Assessment and guards & safety systems fitted accordingly. TDT will assist in finding the most appropriate guard that will meet regulations and be as user friendly as possible.

q) Do I need to cover the lead screws on my lathes?
a) If the lead screws are exposed you should protect against entanglement by fitting covers such as spring loaded Leadscrew Roller Blinds. These are available for lathes upto 3.0metres bed length. For larger machines TDT will fit emergency stop safe edges along the front of the machine.