H 8.20 Dividing Head
Manual C-axis for mounting directly to the machine quill. 360 indexing, non-slip clamping action, external flushing connection for internal flushing. Prepared for attachment of the Rotary Drive H 8.20.1.

Indexing accuracy = setting accuracy < 51
Radial runout, measured 100 mm (3.937")
below the tool plane . < 0.01 mm (0.0004")
Perm. electrode weight when rotating 100 kg (220.5 lbs)
Perm. working current 90 A, when rotating 30 A
Speed range as rotating spindle 20 to 150 rpm
Weight 8 kg (17.64 lbs)

H 8.21 Dividing Head
Same design as for H 8.20, but with centering Vee block and clamping journal for quick change to the connection flange, e.g. H 8.11.

Internal flushing.
Weight 7.6 kg (16.76 lbs)

H 8.21 Dividing Head
Same design as for H 8.20, but with centering Vee block and clamping journal for quick change to the connection flange, e.g. H 8.11.

Internal flushing.
Weight 7.6 kg (16.76 lbs)

H 8.20.1 Rotary Drive, for H 8.20 and H 8.21
DC motor, infinitely variable when using the Control Unit H 20.2, with front-attached, maintenance-free toothed belt drive with quick connection feature to drive the dividing head via the pinion. The working current is transferred to the locking ring of the dividing head via a sliding contact.

Connection to the Control Unit H 20.2 by a coiled mains cable, extendable to a length of approx. 2.5 m (98,42").
Weight 1.5 kg (3.3 lbs)

H 20.2 Control Unit (- 230 V/1 15 V)
For H 8.20.1, H 8.22.1, H 25, H 25.10 and H 80 R.M.
The control unit is equipped with a potentiometer for setting the required speed of the dividing head or the rotating spindle.
Mains cable approx. 2 m (78,74") long Switchable from 230 V to 115 V.

Weight 2.4 kg (5.3 lbs)

H 8.22.12 Dividing Head
For mounting directly to the machine quill, 360 indexing, non- slip clamping action, external flushing connection for internal flushing. Prepared for attachment of the Rotary Drive H 8.22.1.

Indexing accuracy < 51
Radial runout, measured 100 mm (3.937")
below the tool plane < 0.01 mm
Perm. electrode weight when rotating 50 kg (110.25 lbs)
Perm. working current 60 A, when rotating 15 A
Speed range as rotating spindle 20 to 150 rpm
Weight 2.6 kg (5.73 lbs)

H 8.22 Dividing Head
Same design as for H 8.22.12, but with centering Vee blocks and clamping journal for quick change to the connection flange, e.g. H 8.12.

Internal flushing.
Weight 2.5 kg (5.51 lbs)

H 8.22.1 Rotary Drive, for H 8.22.12 and H 8.22
DC motor, infinitely variable when using the Control Unit H 20.2 with front-attached, maintenance-free angular gear with quick connection feature to drive the dividing head via a toothed belt. The working current is transferred to the locking ring of the dividing head via a sliding contact.

Connection to the Control Unit H 20.2 by a coiled mains cable, extendable to a length of 2.5 m (98.42").

Weight 1.2 kg (2.65 lbs)