CENTERLESS GRINDERS SERIES STC SERIES

  • Heavily ribbed box-type base made in Meehanite casting with Turcite coated double V slideways,which is normalized and stress relieved, providing maximum rigidity to assure machine stability and vibration free operation.
  • Hydrostatic Babbitt type spindle bearing with a 3 point design and pressurized, filtered, recirculation oil system eliminates metal to metal contact. A pressure switch interlock prevents spindle start up until oil pressure is build up.
  • Hydraulic & lubrications systems are air cooled to maintain constant oil temperature and separate from the machine to eliminate vibration and dissipate heat.
  • Optional automatic loading & unloading systems for infeed or thrufeed operations.
  • CNC configurations from one single axis to 6-axes.
  • Mitsibishi PLC control uses a menu driven LCD touch screen for simple operation.
DESCRIPTION / MODEL STC-12S/NC STC-18S/NC/CNC STC-20S/NC/CNC STC-24S/NC/CNC
General capacity
Work diameter with std. workrest 1~50 1~60 1~60 1~80
Work diameter with special workrest 30~50 60~100 60~120 80~150
Auto infeed increment (NC models) 0.001~9.99
Grinding wheel
Spindle speed 1900 rpm 1520 rpm 1350 rpm 1050 rpm
Dressing increment per graduation 0,02 0,01
per revolution 4 3,5
Regulating wheel
Spindle speed (inf. Variable) 15~310 rpm 15~308 rpm 10~250 rpm
Handwheel per graduation 0,04 0,05
per revolution 4 3,5
Swivelling angle +/- 5°
Inclining angle +5° ~ -3°
Dressing increment per graduation 0,02 0,01
per revolution 2 2
Rapid feeding of saddle handwheel per graduation 0,02 0,07
per revolution 7 9
Microfeeding of saddle handwheel per graduation 0,001 0,001
per revolution 0,2 0,2
Motor
Grinding wheel motor 7.5 HP/10 HP 15 HP/20 HP 20 HP/25 HP 20 HP/30 HP
Hydraulic motor 1/4 HP (6 P) 15 HP/20 HP
Infeed servo motor (NC model) 1 kW 1.5 kW 3 kW
Machine
Net weight 1800 kgs 3000 kgs 3400 kgs 5800 kgs
Gross weight 4500 kgs 5100 kgs 5400 kgs 5400 kgs
Packing dimensions (L x W x H) 2250 x 1670 x 1850 2730 x 2240 x 2060 2730 x 2250 x 2060 3070 x 2250 x 2160