Corvus NGB C-type

Corvus NGB grinding machine

Corvus NGB BBA

Corvus_BBA grinding machine

Corvus NGB BPP

Corvus NGB grinding machine


corvus NGB C-type

The 5-axis CNC grinding machine for long and heavy tools such as granulate mills, large die sinking end mills, end mills, prismatic or round broach tools, grooved shafts and gear racks!

5-axis CNC grinding machine corvus NGB;High-performance for large parts and high grinding power for the production of all large cutting tools with complete processing OD and face, up to 2800 mm cutting length, diameter up to 400 mm, maximum workpiece length that can be chucked up is 3500 mm. With the T-Slotted table, the machine envelope offers the flexibility to install a great variety of clamping systems from tailstocks to magnetic chucks.

CNC grinding of knives for the paper, tooling for the food and plastics industries, profile grinding, cylindrical grinding and surface grinding.

Accessories for individual expansion of the application spectrum and increased productivity:

  • X-stroke of 850 mm up to optional 3100 mm
  • 6-axis robot for loading workpieces with 4 pallets or carrousel design for tool holders for tools with HSK mounts
  • Grinding wheel loader with 8 grinding wheel packages incl. coolant nozzles
  • Grinding spindles with a power rating of up to 53 kW / HSK 190
  • Direct measuring system in all axes
  • Linear motors in all axes available
  • Direct drive motor for cylindrical grinding up to 1250 Nm torque
  • Dressing unit for dressing profiles
  • Manual or hydraulic tailstock
  • Manual, hydraulic or CNC controlled steady rest, following the grinding point
  • Collet chucks, clamping mandrel, magnetic chucks
  • Coolant filtration system
  • Exhaust air filter
  • CO2 extinguishing system

Applications for the Corvus machines

Granulate mills – Hobs – Broaching tool – Cylindrical grinding – Non-round grinding – Round thread rolling dies – Spline shaft – Gear racks

See more about the machine applications here

See more machines from Schneeberger

Learn more about the company Schneeberger


X: 850, 1‘250, 2‘100, oder 3‘100 mm
longitudinal slide, linear motor, resolution up to 10 Nanometer

Y: 400 mm / 15 3/4″

cross slide, ball screw or linear motor, resolution up to 10 Nanometer

Z: 400 mm / 15 3/4″

vertical axis, ball screw or linear motor, resolution up to 10 Nanometer

A: ∞ ISO50

tool tray, resolution 0.000045°

C: 360°

rotation of the grinding head, resolution 0.000045°

Control: FANUC 3x Series, 5 Machine Axes and options

15” TFT-Color monitor touch screen, USB 3.0


Loader : Fanuc robot, 4 pallets or arbor arena with 24 positions

7-position disc loader for 21 grinding wheels


Grinding head: Double grinding spindle with direct drive, HSK50 / HSK80 or grinding spindle HSK190 with permanent balancing unit, grinding wheels from Ø 30 to Ø 450mm

Optional: Grinding spindle with automatic clamping of HSK50 / HSK80, for wheel loader 10 kW (100%), 13 kW (60%), 24 kW (100%), 32 kW (60%) or 40 kW (100%), 53 kW (60%)


X-stroke 850: L 2885 mm, weight 12,000 kg

X-stroke 1250: L 3285 mm, weight 13,500 kg

X-stroke 2100: L 4135 mm, weight 17,000 kg

X-stroke 3100: L 5365 mm, weight 20,500 kg