Reduce Scrapping and Smelting, Promote Component Reuse > Complete Machines
> 2000 and up
> Cook County
> 20" dia. 20HP supertec stc-20 centerless grinder, 8" w
20" dia. 20HP supertec stc-20 centerless grinder, 8" w
20" Dia. 20HP Supertec STC-20 CENTERLESS GRINDER, 8" W
20" Dia. 20HP Motor Supertec STC-20 CENTERLESS GRINDER, 8" Wide Wheel
"NEW" SUPERTEC MODEL STC-20 CENTERLESS GRINDER
- Both grinding & regulating wheel spindles are made of
NI-CR-MO alloy steel, which is normalized and carbonized
hardened and ground for longer life and better accuracy.
- Hydrostatic Babbitt bearings type spindle with a 3-point
support design, surrounded by a high pressure oil film,
eliminates metal-to-metal contact to provide heavy duty
grinding capability as well as high vibration damping performance.
- A pressure switch interlock prevents spindle start-up
until oil pressure is established.
- This pressure switch interlock also stops the spindle if
oil pressure fails for longer spindle life.
- The regulating wheel travels on double V ways are hand-scraped
and Turcite coated for precise and smooth movement to ensure
high accuracy and longer way life.
- Both grinding & regulating wheels equip with hydraulic dressing
unit. Dressing speed is infinitely variable. Various profile
dressing can be achieved with optional template.
- Hydraulic dressing unit for the regulating wheel can be rapidly
and precisely swiveled up to 3 for grinding taper in infeed
grinding and for providing better contact between workpiece
and grinding wheel to achieve better surface roughness, roundness,
- All gears in the gearbox are made of Chrome-Molybdenum alloy
steel (SNCM-21), are hardened and precision-ground for smooth
- The hydraulic system is air cooled to maintain constant oil
temperature and separated from machine to eliminate vibration
- The optional servo driven variable speed regulating wheel
helps to achieve optimal surface speed for a better cutting
capability and a superior surface finish.
- Optional automatic loading & unloading for infeed & thrufeed
can be custom-built to meet your requirements, allowing the machine
to be run unattended, at a high production rate, while maintaining a
Work diameter (with standard workrest): 0.04 ~2
Work diameter (with special workrest): 2 ~4
Wheel size (Diameter x Width x Bore): 20 x 8 x 12
Dressing increment (per graduation): 0.0005
Dressing increment (per revolution): 0.0625
Wheel size (dia x width x bore): 12 x 8 x 5
Spindle speeds (10 steps): 15~308 rpm
Handwheel per graduation: 0.002
Handwheel per revolution: 0.2
Dressing increment per graduation: 0.0005
Dressing increment per revolution: 0.0625
Rapid feeding of saddle handwheel
Micro feeding of saddle handwheel
- Grinding wheel with flange - Coolant system
- Regulating wheel with flange - Diamond tools
- Wheel balancing arbor - Standard thrufeed blade
- Levelling bolts with blocks - Standard thrufeed workrest
- Maintenance tools & tool box - Wheel extractor
- Heat exchanger for hydraulic system
Options & Extras (call for pricing):
- Hydraulic auto infeed attachment
- Std. auto vibration feeder (dia. 400mm)
- Automatic loading & unloading attachment for infeed
- Automatic loading for thrufeed
- Outgoing conveyor & receiver
- Coolant system w/magnetic separator (20L/min, 83L)
- Coolant system w/magnetic separator (40L/min, 172L)
- Grinding wheel (20"x8"x12", 38A) for STC-20
- Grinding wheel flange for STC-20
- Regulating wheel (12"x8"x5", A) for STC-20
- Regulating wheel flange for STC-20
- Thrufeed workrest (0.04" - 2") for STC-20
- Special thrufeed workrest (2"- 4") for STC-20
- Infeed workrest (0.04" - 2")
- Special infeed workrest (2" - 4") for STC-20
- Thrufeed blade (various sizes)
- Infeed blade (various sizes)
- Input rail & output rail (L: 8"/ea) for STC-20
- Long thrufeed guides (6ft/ea) w/stands for STC-20
- Servo driven variable speed regulating wheel
