Helios KFS 250

CNC Gear Tool Sharpening Machine


Max Diameter Rating


Max Length Rating


AGMA Quality

Equipped for heavy-duty sharpening of high-speed steel (HSS) and carbide tools:
Capabilities include bore- and shank-type tools, straight- and helical-gash hobs, milling cutters, and shaper cutters.
Designed for use of vitrified, CBN or diamond abrasive (resin-bonded or plated).
Optional spur and helical shaper cutter sharpening (KFS 250-SS) and helical- and spiral-gash hob sharpening (KFS 250-S).

Centrifuge filtration system provides clarity level of 2 to 5 microns:
Integrated into the machine bed for footprint optimization and shop floor cleanliness.

Precision, repeatability, and control with pre-loaded linear guideways.

Capabilities to meet AGMA AAA specifications.

Ergonomic and intuitive considerations for operator accessibility:
Easy-to-use software with conversational programming and storage of cutter data.
4-axis Fanuc CNC control of all four axes for automation-assisted setup while maximizing accuracy and repeatability.
Compact Fanuc CNC panel with touch-screen color display that stows into machine for safety and footprint optimization.
Pneumatic tailstock provides clamping pressure while grinding.
Accessible machine spindles for easy setup.
Maintenance ease with single-piece design for access to all machine systems.


Minimal footprint for maximum production.


Conversational programming for quick, easy setup.


Quality components and construction.


Equipped to sharpen variety of tools, hobs, and cutters.

Bolstering your quality and productivity.

Equipped for heavy-duty sharpening of high-speed steel (HSS) and carbide tools of both bore- and shank-type including straight-gash hobs, milling cutters, shaper cutters, and many others.

KFS 250 Technical Specifications

Maximum workpiece diameter rating 254.0 mm 10.000 in
Maximum work swing diameter 305.0 mm 12.000 in
Maximum workpiece length rating 305.0 mm 12.000 in
Maximum grinding wheel diameter 254 mm 10.000 in
Minimum grinding wheel diameter 50.8 mm 2.00 in
Maximum radial travel 280.0 mm 11.024 in
Maximum center distance - work to grinding spindle 305.0 mm 12.000 in
Minimum center distance - work to grinding spindle 25.0 mm 0.984 in
Maximum distance - work spindle to tailstock 635 mm 25.000 in
Maximum tangential travel 200.0 mm 7.874 in
Number of gashes 1-99 -
Maximum spindle speed 12,000 rpm -

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