Grinding fluid systemMachine Parts
Indexing knobScroll chuckHead stockDepth of cut dialAdjust screw for table taperHand wheel for longitudinal spindle movement
Hand wheel for vertical spindle movement
Switch lever
Indexing plate
LightDresserGrinding headGrinding wheelTable tilt adjust screwOil panTail stock
Centering gauge
Lever for lateral movement




Salient Features
Gomi's Tap Flute Grinder Model GB-3 (patent pending) is designed exclusively for the grinding of tap flutes. Developed on the basis of three decades of extensive experience in this field, this machine eliminates at a stroke all the drawbacks of conventional manual grinders, sharply increases regrinding efficiency, streamlines production, and reduces costs.
Thanks to the ultra fine angular contact bearings supporting the wheel spindle, vibration is reduced to a minimum and a long service life and excellent precision are ensured.

Both the V-shaped and flat guideways are machined to a fine finish and are supported by precision bearings. This ensures smooth slide motion and allows the delicate operation of grinding tap flutes to be performed with smoothness and accuracy.

The shape of the grinding wheel is kept uniform by the dresser located in the wheel cover.

The head stock is provided with and indexing system divided into 12 equal parts for grinding taps of 3, 4 or 6 flutes. rake angles can be adjusted precisely to obtain the required tool angle.

The grinding operation is always uniform, since the work piece is always set in the same position by means of the centering gauge on the tail stock.




Specifications
Distance between centers 280 mm
Table lateral movement 210 mm
Table longitudinal movement 200 mm
Degree of table taper adjustment ± 5°
Table tilt ± 3°
Wheel spindle rake angle ± 45°
Wheel spindle vertical movement 170 mm
Wheel max. diameter 130 mm
Motor (wheel) 0.4 kW - 2P
Motor pump (grinding fluid) 0.04 kW - 2P
Speed 50 Hz - 2840 rpm
60 Hz - 3430 rpm
Floor space 480 X 540 mm
Net weight 265 kg

Standard Accessories
1 grinding wheel WA60K 125 mm ø X 10 mm (T) X 12.7 mm ø
1 #3 scroll chuck for grinding taps up to M16
1 centering gauge
1 diamond dresser (11 mm ø) (Should not be used for diamond wheel)
1 grinding fluid system
1 lighting system
1 set of hand tools

Special Accessories
1 #4 scroll chuck for grinding taps up to M24
1 #4 chucking plate
1 #5 head stock for grinding taps up to M32
Various hand tap chucking holder
Large capacity tap grinding for taps up to M100

NOTE: Special accessories are charged separately.