H 4255 Insulating Set (3 pcs.)
Consisting of two small ceramic insulating plates each to be put between the cross beams, the support plates H 4366 and the workpiece to be insulated and one 'insulated clamping jaw each.

The current has to be connected directly to the workpiece.

H 4250 Insulating Unit
For the electrical insulation between the Pallets H 4005, H 4100, H4110 and the workpiece holders to insulate the workpiece against the machine table. The current is then connected directly or to the lateral front part of the insulating unit.
Max. perm. workpiece weight
(with holder) 30 kg (66.14 lbs)
Weight 1 kg (2.20 lbs)

HE 4290 Insulating Unit
 Similar to H 4250 above except made of Green Glass