Used 2007 SAMPUTENSILI S375G | Gear Grinders
Have one to sell?
ConditionUsed
1 available
We offer, subject to prior sale:
One (1) - Model No. S375G SAMPUTENSILI "CNC" Horizontal Gear Profile Grinding Machine,
suitable for the precision grinding of external spur and helical gears and shafts, as well as
internal spur and helical gears and splines. The machine has the added capability of grinding
worms, rotors, and other screw-type workpieces of similar profile up to 14.76” (375mm) which was factory OEM standard - but delivered @ 15.74" (400mm) diameter, and 34.25” (870mm) in length. The machine is also equipped with the “optional” on-board “CNC” dressing feature, and the on-board “CNC” gear inspection system-feature.
Serial No. 2376 (New in 2007)
This is a first-class, highly versatile gear grinding machine, in “superlative” condition throughout,
which may be inspected, in running service, at our customer’s plant facility, by appointment.
-The machine would require acquisition & adaptation of an appropriate coolant filtration system as none are provided in this proposal (Machine was installed sans filtration system @ plant).
-The machine would correspond to the attached copy of factory literature, featuring the following:
PRINCIPAL SPECIFICATIONS:
Maximum work-piece outside diameter …………………… 14.76” (375mm) - Modified to 400mm
Profile depth with dressable form wheels ………………… 0.0394-1.38” (1-.0-35mm)
Profile depth with electroplated wheels …………………. 0.0197-1.97” (0.5-50mm)
Maximum workpiece length ………………………………. 34.25” (870mm)
Maximum helix angle ………………………………………. +/- 90°
Number of grindable teeth …………………………………. 1-999
Maximum weight of workpiece ……………………………. 110 Lbs. (50 kG)
Axis distance between tool and workpiece spindle:
(depending on type of workpiece spindle) ……………… 1.38-13.4” (35-340mm)
Radial travel ………………………………………………… 8.267” (210mm)
Axial travel ………………………………………………….. 23.62” (600mm)
Tangential travel (setting of tool centerline) ……………… 0.06299” (1.6mm)
Swivel angle ……………………………………….………... -35 … 180°
Drive power ………….………………………………………. 15 HP (11 kW)
Tool diameter for external gears ………………………….. 1.57-11.8” (40-300mm)
Maximum width of dressable form wheels ……………….. 1.57” (40mm)
Maximum width of dressable form wheels with relief …… 2.362” (60mm)
Maximum width of electroplated wheels ………………….. 1.181” (30mm)
Maximum width of electroplated wheels
with special tool arbor ……………………………………. 2.362” (60mm)
Speed range of tool spindle ……………………………….. 0-18,000 rpm
Speed range of workpiece spindle ……………………….. 0-100 rpm
Speed range of tool head swivel axis …………………… 0-4 rpm
Speed range of dresser spindle (optional) .……………… 0-3,000 rpm
No. S375G SAMPUTENSILI ( s/n 2376 )
Feed range - axial .……………… ………………………… 0-10,000 mm/min
Feed range - radial .……………… ……………………….. 0-10,000 mm/min
Positioning resolution linear axis…………………………..... 0.0001mm
Positioning resolution tool and workpiece spindle ………… 0.0001°
Total connected load machine/with coolant unit ……….. 50/80 kVA
Rated power of main motor ……………………………….. 11/20 kW
Operating voltage, 60 Hz, 3 phase ………………………. 480 V AC
Control voltage ……………………………………………… 24 V DC
CNC Control SIEMENS …………………………………… Sinumerik 840 D
CNC axes …………………………………………………… four (4)
Total weight of base machine ……………………………… 24,200 Lbs. (11,000 kG)
Overall dimensions (LxBxH), approx. …….………………. 201 x 228 x 106” (5100x5800x2700mm)
Required ambient temperature
(relative humidity 10-90%) ………………………………… 15 …38 °C
FEATURES / EQUIPMENT:
● Electro-welded, heavily ribbed machine bed filled with polymeric cement for vibration-free operation
even at high stock removal rates.
● Grinding spindle with high-precision hybrid ball bearings (ceramic balls), integrated coolant system
● Pneumatic tailstock with quill and easily adjustable clamping force.
● The X and Z axes are directly driven by digital linear motors with flat-prismatic guides.
(No play or backlash for an absolutely wear-free drive system).
● Direct-driven, liquid-cooled, torque motor for the C axis (patented configuration) supported by hybrid
ball bearings (ceramic balls) for extremely high runout accuracy via high-precision angular encoders.
● Work spindle slide Z, with sloped prismatic guides and inclined surface for improved coolant drainage.
● Automatic stock division by contact free sensor, for both external and internal gears, directly
interfaced with the CNC.
● Integrated CNC dressing unit for dressable CBN and ceramic tools utilizing a diamond dress wheel
to dress any kind of profile. Choice of dressing frequency according to the tolerance required.
● Dressing unit for internal grinding
● Full machine enclosure with front facing work area operator’s access door
● Integrated electrostatic oil mist exhaust system w/filter.
● Free-standing, air conditioned electrical switch-gear cabinet
● Operator’s interface-module with pivoting support arm comprising the operator’s panel
the CNC command module, alphanumerical keyboard, monitor, and function keys
( CNC control / software )
● Siemens 840D CNC with mobile operator panel circular and linear interpolation of up to 4 axes.
High-level geometric programming for simplified profile and helix angle generation, including:
o C: Work spindle rotation/indexing
o Z: Work spindle axial movement
o X: Grinding spindle radial movement
o A: Grinding spindle swivel angle
o B: Grinding spindle rotation
o B1: Dressing spindle rotation
o Y: Grinding spindle tangential movement
No. S375G SAMPUTENSILI ( s/n 2376 )
( CNC control / software / continued )
● Samputensili Dialogue Software for the flexible generation of a practically infinite number of
different profiles, management of grinding/dressing cycles and storage of process/profile data
without the need for an external PC. Software includes:
o Profile grinding of external gears (ID RI_EXT)
o Profile grinding of rotors and screws (ID RR)
o Profile grinding of splines with straight profile (ID RS)
o Profile grinding of internal gears (ID RI_INT).
o Profile grinding of external fillet with tool wheel profile defined by points (ID RI_EXT_PP)
o Profile grinding of external gears with profile defined by polar coordinates (ID RI_RAB)
● Short setup time to switch from gear grinding to rotor or screw grinding with selection
of grinding method utilized (“Profile Grinding” and/or “Grinding with “Creep-Feed method”)
● Interpolated tool withdrawal in case of power failures and emergencies.
● On-board gear inspection and measuring system with touch probe and software for checking
profile, lead, pitch, and tooth thickness.
o Software for inspection of external gears (ID RI_CHK)
o Software for inspection of internal gears ((ID RI_INT)
o Software for inspection of rotors & screws
( additional machine features / equipment ):
● Four (4) grinding spindles for external gears (specifications upon request)
● Three (3) grinding spindles for internal gears (specifications upon request)
● Diamond dressing roll
● Miscellaneous grinding wheel flanges for dressable form wheels
● Automatic stock divider
● Full complement of electrics (motors/controls)
(Voltage and frequency to U.S. standards; 480 V AC, 60 H, 3 phase)
● Misc. wrenches, spanners, operator’s tools
● Machine leveling shoes
● Full machine documentation, (operator’s manuals for machine and controller
replacement parts list, wiring and hydraulic diagrams, etc.)
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