Because the high temperature arc between the electrode and  the work piece is continuously quenched by coolant, there is no softening of material around the hole. The hole created by the arc takes the same shape as the electrode used.

BENEFITS to you:
• Reclaim expensive parts quickly, easily.
• No re-manufacturing of parts. 
• Flexible working hours.
• Quick response.
• Eliminate production overruns and late deliveries.
                                                   • Scrap reclamation.

The spark eroding process has burnt out the centre of a  broken tap leaving only the flutes to be removed, not damaging the parent metal. It also removes the centre only of a broken drill, but may do some damage to the threads of a broken bolt or stud, which then would need to be reclaimed by the insertion of a wire insert.

  Video on Utube of 3KVA machine using a 4mm dia. electrode
burning through a 12mm thick lathe tool

Please allow time 3/4 minutes, for clip to download
Note electrode protruding at 2 minutes.

In use the sparks can be contained by a rag or a plastic container

  click to enlarge

Under the new REACH requirements, the only dielectric used is water.

We only work on the strict understanding that terms and conditions are understood and agreed.

Email info(at)sparkeroding.co.uk

Member Federation Self Employed and Small Businesses since 1985