External cylindrical grinding machine corvus NGB BBA

for gearsfor broaching toolCNC

The 6-axis CNC grinding machine corvus BBA with its well thought out, attractive design is the leader in broach grinding machine. It is the result of years of co-operation with broach tool manufacturers from all over the world. The CNC grinding of broach tools is possible in a single clamping grinding gullets, spiral flutes, profile, spiral profile, clearance angle, chamfers, cylindrical grinding or surface grinding and all with the highest precision. Complete processing OD and face, up to 2800 mm cutting length, diameter up to 400 mm, maximum workpiece length that can be clamped 3500 mm. With its T-slotted table, the machine envelope can accept steady rests, tailstocks and magnetic chucks. In all likelihood, the following broach tools and broach needles are ground the world over on a corvus BBA: Internal broach tool: Profile broaching tool, round, polygonal, rectangular, hexagonal, keyway, feather key groove External broach tool: Flat broaching tool, concave tool hard broach tool Large tool Turbine tool Helical fluting tool Broach needle for twist broaching Broach needle for hard broaching Gear rack broach needles Custom broach tools Thanks to an A-axis torque of up to 1250 Nm, tools up to 1500 kg can be produced or re-ground. Transmission manufacturers appreciate the universal nature of this machine when regrinding of gear cutting tools such as gear hobs and shaper cutters. Accessories for individual expansion of the application spectrum and increased productivity: Measurement system in all axes Linear motors in all axes Direct drive motor for cylindrical grinding tasks up to 1250 Nm torque Dressing unit for dressing profiles Manual or hydraulic tailstock