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MI Cable Precision Drilling Machine
  • drillMachine1Sizes from 1mm to 6mm MI cables.
  • Precise alignment even at 1mm.
  • Reduces preparation time.
  • Selectable footswitch control option.
  • Selectable speeds up to 4000 rpm.
  • Comprehensive accessories.
  • All drills, guides and collets supplied.
  • Bench fixing kit.
  • Full printed instruction manual (pdf also available on CD or via e-mail)
This new Drilling Machine is designed to remove the insulation from the end of a prepared sample of MI cable in order to facilitate a complete welded measurement junction. The insulation is removed along with a section of conductor by drilling the end of the cable precisely to the required depth. The machine cleanly cuts away the conductors without twisting them together at the same time as removing the insulation.
 
drillMachine2The Drilling machine consists principally of a thyristor controlled DC 250W motor. This motor drives a precisely mounted ER16 Collet extension/holder, which accommodates the various drills. The collet extension is carried by two ball bearing pedestal blocks precisely centrally aligned with a second collet extension. This second collet extension is mounted in a linear bearing set allowing forward movement without radial displacement.
 
Both sets of bearings are mounted on a 2'' x 4'' Aluminium box section, which is further mounted on a 0.5'' thick Aluminium base plate. There last two components ensure maximum rigidity of the aligned collet holders. Top controls include speed settings and run selector switch. This switch allows the use of an external footswitch to operate the drill. The footswitch plugs into the rear of the machine and is included in the accessories package.
 
Precision turned drill guides ensure that the thermocouple and drill are aligned on the same axis. This means that only the insulation is removed from the thermocouple without cutting into the sheath inner wall.
 
Specification:
 
Power Supply: The machine is designed to operate from a single-phase mains supply in the ranges 110/120VAC or 220/240VAC at 50/60Hz
Motor Speed: 3 speeds: full, half and one third. Maximum speed I s internally set and can be adjusted if required.
Dimensions: Height 140mm (5.5''), Width 250mm (10''), Depth 370mm (14.5'')
Weight: 10kg (22lbs)
 
drillMachine3Drills are fitted using proprietary ER16 Collets, which are ranged to cover drills for all thermocouple sizes from 1.0mm to 6.0mm depending on user preferences. The precision drilling machine is supplied with a comprehensive manual and a toolkit. The toolkit includes an open-ended spanner for holding the collet shaft when removing or tightening the drill collet.
 
There is also a special spanner used to tighten the collet ring. A tee handled Allen key is provided to adjust the backstop along with a small brush for removing the debris after drilling. Collets and drill guides complete the toolkit and cab be specified on ordering. Additionally the machine is separately supplied with a footswitch and spare fuses.

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