Studer S32 Universal Cylindrical Grinding Machine
Studer S32
Studer S32
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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
andfuel injectionindustry and with special equipment for punch
grinding in the tooling sector.
Features:
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
Specifications:
Grinding length
16"
Center height
7"
Workpiece weight
176lbs.
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.
Dressing
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.).
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