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STUDER S 31 CNC
Type: S 31 CNC
Manufacturer: STUDER
Control: FANUC 16i-T
Year: 2002
Stock: 023745
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STUDER S 31 CNC is a CNC cylindrical grinder designed to deliver precision, high accuracy and reliability. Capacities: centre height 175 mm, distance between centres 650 mm, max. grinding diameter 348 mm; left grinding wheel Ø500×63 mm, right Ø400×63 mm; turret grinding holder with 2 spindles; C axis resolution 0.0001°. Axes and spindles: longitudinal Z travel 800 mm, transversal X travel 254 mm; grinding wheel speeds 1,400–3,200 rpm; work spindle speeds 1–1,300 rpm; spindle hole 26 mm; tailstock taper 3 CM, tailstock travel 35 mm. Technical data: feeds Z 0.001–10,000 mm/min, X 0.001–5,000 mm/min; supply 3×400 V 50 Hz; work spindle motor 3 kW; total installed power 23 kVA; weight ≈5,200 kg; dimensions 3000×2200×2100 mm. Accessories: paper filtration, coolant filter system, internal grinding attachment, lamp, electronic hand-held control, left/right grinding wheels; machine refurbished 2017. Suited to achieve tight tolerances in automotive, aerospace, medical, watchmaking and toolmaking.

Technical specifications are subject to change without notice

Centre height 175 mm
Distance between centres 650 mm
Max. grinding diameter 348 mm
Grinding weehl left side:
   Diameter 500 mm
   Width 63 mm
Grinding wheel right side:
   Diameter 400 mm
   Width 63 mm
Turret grinding tool holder num. of spindles 2
Grinding wheel speeds:
   stepless
   from 1400 t/min
   up to 3200 t/min
Rotatable grinding spindle head (b-axis) -15 / +195 °
   Resolution 1° HIRTH
Longitudinal slide: Z
   Max. travel 800 mm
   Resolution of the scale mm
   Feed speed up 0.001 - 10000 mm/min
Transversal slide: X
   Max. travel 254 mm
   Feed speed up 0.001 - 5000 mm/min
   Resolution of the scale mm
Work piece spindle head:
   speeds:
   stepless
   from 1 t/min
   up to 1300 t/min
   C axis 0.0001°
   Spindle hole 26 mm
   taper in spindle: MT 4
Tailstock:
   Taper in tailstock: 3 CM
   Tailstock travel of barrel 35 mm
Voltage 50 Hz 3x 400 Volt
Workpiece spindle motor 3 kW
Total power required 23 kVA
Machine's weight about 5200 kg
Overall dimensions machine:
   Length 3000 mm
   Width 2200 mm
   Height 2100 mm
Various accessories:
Paper filtration system
Coolant filter system
C axis 0.0001°
Internal grinding attachment:
   Number of spindles 1
Lamp
Electronic hand held control
Grinding wheel right and left hand
Machine refurbished 2017

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