The versatile for big tasks.
Basic Data

The S31 is a cylindrical grinding machine for small to large workpieces in single, small and large series production. It has a distance between centres of 400mm (15.7") / 650mm (25.6") / 1,000mm (40") / 1,600mm (63") and a centre height of 175mm (6.9"). It can machine workpieces with a maximum weight of 150kg (330lbs).

Thanks to the upgradeable modular system, the S31 can be adapted to match your precise requirements. The swiveling wheelhead allows you to externally, internally and face grind workpieces in a single clamping – with a high-resolution B-axis of 0.00005°. Its foundation is a machine base made of solid Granitan® S103.

Images
Hardware / Software

Hardware:

  • Turret wheelhead with the option of:
    – Stepless B axis
    – B axis with 1° Hirth serration
  • Frequency-controlled motor-driven grinding spindles for external and internal grinding
  • C-axis for the workhead for form and thread grinding
  • An additional T-slot integrated into workpiece table for dressing device
  • Full enclosure with two sliding doors
  • Granitan® S103 mineral casting machine base

Software:

  • Extremely easy programming with StuderPictogramming
  • Reduced setup and resetting times with STUDER Quick-Set
  • High-speed machining (HSM) for efficient and high-precision form grinding
  • Standardized interfaces for loader and peripheral devices
  • Flexibly expandable with integrated software modules
  • StuderWIN programming software (optional) for creating grinding and dressing programs on an external PC
Technical Data
kg / cm
lb / inches

Linear Axes

Max. Travel X 370 mm
Max. Travel Speed X 15'000 mm/min
Max. Travel Z 500 mm
Max. Travel Speed Z 20'000 mm/min

Spindle drive

Max. Spindle Power 8 kW
Max. Number Of Revolutions 3'200 /min
Max. Grinding Wheel Diameter 508 mm
Max. Grinding Wheel Width 80 mm

Swiveling Axes

Swiveling Range B 240 °
Swiveling Range C ∞ °

Workpiece Data

Workpiece Length 0 - 400 mm
Workpiece Diameter 0 - 349 mm
Max. Workpiece Weight 150 kg
Distance Between Centers 400 mm
Center Height 175 mm

Linear Axes

Max. Travel X 14.6 inch
Max. Travel Speed X 590 inch/min
Max. Travel Z 19.7 inch
Max. Travel Speed Z 787 inch/min

Spindle drive

Max. Spindle Power 10 hp
Max. Number Of Revolutions 3'200 rpm
Max. Grinding Wheel Diameter 20 inch
Max. Grinding Wheel Width 3.15 inch

Swiveling Axes

Swiveling Range B 240 deg
Swiveling Range C ∞ deg

Workpiece Data

Workpiece Length 0 - 15.7 inch
Workpiece Diameter 0 - 13.75 inch
Max. Workpiece Weight 330 lbs
Distance Between Centers 15.7 inch
Center Height 6.9 inch

Linear Axes

Max. Travel X 370 mm
Max. Travel Speed X 15'000 mm/min
Max. Travel Z 800 mm
Max. Travel Speed Z 20'000 mm/min

Spindle drive

Max. Spindle Power 8 kW
Max. Number Of Revolutions 3'200 /min
Max. Grinding Wheel Diameter 508 mm
Max. Grinding Wheel Width 80 mm

Swiveling Axes

Swiveling Range B 240 °
Swiveling Range C ∞ °

Workpiece Data

Workpiece Length 0 - 650 mm
Workpiece Diameter 0 - 349 mm
Max. Workpiece Weight 150 kg
Distance Between Centers 650 mm
Center Height 175 mm

Linear Axes

Max. Travel X 14.6 inch
Max. Travel Speed X 590 inch/min
Max. Travel Z 31.5 inch
Max. Travel Speed Z 787 inch/min

Spindle drive

Max. Spindle Power 10 hp
Max. Number Of Revolutions 3'200 rpm
Max. Grinding Wheel Diameter 20 inch
Max. Grinding Wheel Width 3.15 inch

Swiveling Axes

Swiveling Range B 240 deg
Swiveling Range C ∞ deg

Workpiece Data

Workpiece Length 0 - 25.6 inch
Workpiece Diameter 0 - 13.75 inch
Max. Workpiece Weight 330 lbs
Distance Between Centers 25.6 inch
Center Height 6.9 inch

Linear Axes

Max. Travel X 370 mm
Max. Travel Speed X 15'000 mm/min
Max. Travel Z 1'150 mm
Max. Travel Speed Z 20'000 mm/min

Spindle drive

Max. Spindle Power 8 kW
Max. Number Of Revolutions 3'200 /min
Max. Grinding Wheel Diameter 508 mm
Max. Grinding Wheel Width 80 mm

Swiveling Axes

Swiveling Range B 240 °
Swiveling Range C ∞ °

Workpiece Data

Workpiece Length 0 - 1'000 mm
Workpiece Diameter 0 - 349 mm
Max. Workpiece Weight 150 kg
Distance Between Centers 1'000 mm
Center Height 175 mm

Linear Axes

Max. Travel X 14.6 inch
Max. Travel Speed X 590 inch/min
Max. Travel Z 45.3 inch
Max. Travel Speed Z 787 inch/min

Spindle drive

Max. Spindle Power 10 hp
Max. Number Of Revolutions 3'200 rpm
Max. Grinding Wheel Diameter 20 inch
Max. Grinding Wheel Width 3.15 inch

Swiveling Axes

Swiveling Range B 240 deg
Swiveling Range C ∞ deg

Workpiece Data

Workpiece Length 0 - 39.4 inch
Workpiece Diameter 0 - 13.75 inch
Max. Workpiece Weight 330 lbs
Distance Between Centers 39.37 inch
Center Height 39.4 inch

Linear Axes

Max. Travel X 370 mm
Max. Travel Speed X 15'000 mm/min
Max. Travel Z 1'750 mm
Max. Travel Speed Z 20'000 mm/min

Spindle drive

Max. Spindle Power 8 kW
Max. Number Of Revolutions 3'200 /min
Max. Grinding Wheel Diameter 508 mm
Max. Grinding Wheel Width 80 mm

Swiveling Axes

Swiveling Range B 240 °
Swiveling Range C ∞ °

Workpiece Data

Workpiece Length 0 - 1'600 mm
Workpiece Diameter 0 - 349 mm
Max. Workpiece Weight 150 kg
Distance Between Centers 1'600 mm
Center Height 175 mm

Linear Axes

Max. Travel X 14.6 inch
Max. Travel Speed X 590 inch/min
Max. Travel Z 68.9 inch
Max. Travel Speed Z 787 inch/min

Spindle drive

Max. Spindle Power 10 hp
Max. Number Of Revolutions 3'200 rpm
Max. Grinding Wheel Diameter 20 inch
Max. Grinding Wheel Width 3.15 inch

Swiveling Axes

Swiveling Range B 240 deg
Swiveling Range C ∞ deg

Workpiece Data

Workpiece Length 0 - 63 inch
Workpiece Diameter 0 - 13.75 inch
Max. Workpiece Weight 330 lbs
Distance Between Centers 63 inch
Center Height 6.9 inch
Downloads
pdf, 4 MB
Product brochure
S31 - The versatile for big tasks.
Download
pdf, 4 MB
StuderControl
Automatic control measurements directly on the machine
Download
pdf, 290 KB
STUDER easyload
For external and universal cylindrical grinding machines
Download
pdf, 1 MB
STUDER easyLoad NC
For external and universal cylindrical grinding machines
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Videos
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