Grinding Machine Model

Studer S32
ID / OD Universal Cylindrical CNC Grinder for High-Production

Studer S32 Universal Cylindrical Grinding Machine
Studer S32  
Studer S32 -

The S32 is designed for the grinding of workpieces in large series. It can be automated and is especially suitable for use in the automotive and fuel injection industry and with special equipment for punch grinding in the tooling sector.



  • Arrangement of X-axis 0 or 30 deg
  • Grinding wheel left or right
  • The roller dressing unit makes the S32 a high-production machine
  • Use of the C-axis makes it a high-performance punch grinder
  • Equipment for high-speed grinding with cutting rates of over 125 m/sec for working materials that are difficult to machine
  • Several workhead models available for different grinding jobs
  • Full enclosure with 1 sliding doors
  • Machine base made of Granitan
  • Standardised interface for loader and peripheral devices
  • Extensive range of accessories  



Grinding length


Center height


Workpiece weight

176 lbs.

Swivel range wheelhead

+/- 8.5°

Grinding wheel dimensions

20 x 3"

Spindle drive

10/16/26 hp


Studer S32cnc External Cylindrical CNC Grinder

The S32cnc addresses a wide diversity of applications and can be "tailored" to match today's fluctuating production demands. This is possible due to a number of unique capabilities: an X-axis which may be arranged for angular infeeding (wheel at 30 degrees) or infeed grinding on the left or right (wheel at 0 degrees). This permits the machine to process very basic, straightforward workpieces or highly complex ones. In the standard configuration, with the grinding wheel on the right and a between-centers distance of 400 mm, the S32cnc is perfectly suited for grinding small- to average-size cylindrical workpieces. An optional C-axis permits ultra-precise form grinding routines for tooling (punches, for example) and thread grinding. Hydrostatic guideways on the X-axis permit extremely rapid traverse rates with minimal axis lag. With the addition of diamond roll dressing and proven automated part loading/ unloading systems - plus in-process/post-process measurement and control - the S32cnc delivers superior productivity, untended or "lights-out" processing of long runs of single parts or part families, reduced non-grinding time and maximum machine/operator utilization. Arranged for high-speed grinding - with cutting speeds in excess of 125 m/sec - the S32cnc takes on especially difficult-to-machine materials, such as zirconium ceramics or tungsten carbide, making them routine grinding candidates.

S32cnc overview
The S32cnc has a 175 mm center height and a maximum grinding length of 400 mm. Digital direct-drive X-axis features a travel of 300 mm at speeds to 15 m/sec and a linear measuring resolution of 0.0001 mm. Cast iron slide and cradle provide high vibration dampening and superior rigidity. Preloaded hydrostatic guideways ensure wear-free, stick-slip-free movement, highly accurate positioning and precise repeatability. Digital direct-drive Z axis travel is 485 mm. Speed and linear resolution are the same as X axis. The prestressed rigid cast slide is hydrostatically guided for maximum precision, and V and flat path guides are coated with abrasion-proof Granitan S200. Nubbed guideways and continuous lubrication are also available.

The machine base of Studer-developed Granitan S103 delivers excellent vibration dampening, inherent rigidity and strength and excellent chemical stability and thermal compensation. The spindle is powered by a 7.5 kW motor and has high-precision roller bearings for grinding between dead centers as well as live grinding with revolving spindle. Peripheral speed up to 50 m/sec with continuous speed control to 3200 RPM. Precision control permits fine adjustmeent of cylindricity during grinding operations to +/ 40 µm. Grinding wheel size: 500 mm x 80 mm x 203 mm. An additional high-precision axis behind the grinding wheel permits highly cost effective dressing with a 140 mm x 80 mm diamond roll. Guaranteed tolerance precision: 0.0004 mm on roundness and 0.002 mm straightness deviation over a length of 400 mm.

Wheel dressing intervals may be made by the operator following these simple methods: by pressing a pushbutton at any time during any grinding cycle; after a programmed number of specific machined parts or grinding operations; at programmed switchover points; at the programmed nominal size; after a specific number of strokes - or a combination of these, permitting the optimum solution for the specific grinding application. Grinding wheel reference points are referred to as "T" numbers, and together with Studer grinding cycles, "T" numbers permit programming with nominal sizes. The actual value indication on the control LCD refers in each case to the programmed wheel reference point. Values of the grinding wheel shape are entered in a dressing dialog display at the control.

Control & programming
The S32cnc features state-of-the-art Fanuc 16i digital control and axis drive components. Machine operation, setup, changeover, dressing and programming of even complex parts are easily accomplished through the innovative, step-by-step Studer Pictogramming which allows operators simply to connect grinding cycles to one another and add necessary numerical values. The control then generates the machine program automatically. Advanced manual programming in G code is of course also possible. Programming is done directly at the machine or off-line and then downloaded to the machine control. Process parameters can be changed on the fly, while the machine runs, without affecting the workpiece program. The S32cnc control package features proven application-specific Studer grinding cycles for diameters, shoulders (left and right), tapers (negative and positive), contours, forms and threads. The Windows user-interface features integrated on-line help menus and extensive fault/error diagnostics. Remote diagnostics, process control and trouble-shooting via standard telephone line and machine modem link are easily facilitated. Form grinding options on the S32cnc include a heavy duty workhead with 4 kW spindle drive and a state-of-the-art Fanuc 160i control with Windows interface and special software package (for dies, punches, etc.).




ID / OD Universal Cylindrical CNC Grinder for High-Production
Grinder Type: Cylindrical-OD, Thread Grinder
Machine Opertaion: CNC
CNC Brand: Fanuc 16i
Grinding Length: 16.000 Inches Length: 406.400 mm
OD Grinding Diameter(s) Max: 14.000 Max: 355.600 mm
Workload 176 lbs. 80 kg.
Grinding Wheel Dia.: 20.000 Inches    Width: 3.000 Inches    Bore: 8.000 Inches    Dia.: 508.000 mm    Width: 76.200 mm    Bore: 203.200 mm   
Wheel Head Motor: 10.00 hp  Opt: 26.00 hp Motor: 7.50 kW  Opt:19.50 kW   1,000 rpm  Opt: 3,200 rpm   Angle Adjustment: 17.000°
Travel Max Feed Rapid Rate
Longitudinal 19.094 Inches 485.000 mm 591 ipm 15,000 mm/min
Cross 11.800 Inches 299.720 mm 591 ipm 15,000 mm/min
Machine Length: 79 Inches 2,000 mm
Machine Width: 96 Inches 2,450 mm
Machine Height: 83 Inches 2,100 mm
Machine Weight: 12,100 lbs 5,500 kg
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