STC-12
Description
- Both grinding & regulating wheel spindles are made of NI-CR-MO alloy steel, which is normalized and carbonized hardened and ground for longer spindle 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, & cylindricity.
- All gears in the gearbox are made of Chrome-Molybdenum alloy steel (SNCM-21), are hardened and precision-ground for smooth running and low noise.
- The hydraulic system is air cooled to maintain constant oil temperature and separated from machine to eliminate vibration and dissipate heat.
- Optional automatic loading & unloading for infeed & thrufeed can be custom-built to meet your requirements, so machine can run unattended, at a high production rate, while maintaining a tight tolerance.
Specifications
| Description/Model | STC-12S NC | ||
|---|---|---|---|
| General Capacity | Work Diamater (with Standard Workrest) (mm) | Ø1~ Ø 50 (Ø0.04"~Ø1.18") | |
| Work Diamater (with Special Workrest) (mm) | Ø30~ Ø 50 (Ø1.18"~Ø2") | ||
| Auto Infeed Increment (NC Model) (mm) | Ø0.001~9.99 | ||
| Grinding Wheel | Grinding Wheel Spindel Speeds (rpm) | 1900 | |
| Dressing Increment | per graduation (mm) | 0.02 (0.0005") | |
| per revolution (mm) | 2 (0.05") | ||
| Reulating Wheel | Reulating Wheel Spindle Speeds (Infinitely Variable) (rpm) | 15~310 | |
| Handwheel | per graduation (mm) | 0.04 (0.002") | |
| per revolution (mm) | 4 (0.2") | ||
| Swivelling Angle(R & L) | ±5° | ||
| Inclining Angle | ±5°~ -3° | ||
| Dressing Increment | per graduation (mm) | 0.02 (0.0005") | |
| per revolution (mm) | 1.5 (0.059") | ||
| Rapid Feeding of Saddle Handwheel | per graduation (mm) | 0.05 (0.00125") | |
| per revolution (mm) | 7 (0.25") | ||
| Micro Feeding of Saddle Handwheel | per graduation (mm) | 0.001 (0.00004") | |
| per revolution (mm) | 0.2 (0.005") | ||
| Motor | Grinding Wheel Motor (kW) | 5.6 / (opt.7.4) | |
| Hydraulic Motor (kW) | 1.5 | ||
| Infeed Servo Motor (NC model) (kW) | 1 | ||
| Machine Size/ Weight | Net Weight, approx. (kg) | 1800 (3960lbs) | |
| Gross Weight, approx. (kg) | 2200 (4840lbs) | ||
| Packing Dimension (L x W x H - mm) | 2250 × 1670 × 1850 (89" × 66" × 73") | ||
Remark：We reserve the right to modify the specification relating to any of the above machines wirhout notice.
Features
- Balancing Stand
- Coolant System W/Paper Filter
- Input Rail & Output RaiL (L:8" / EA)
- Spare Grinding Wheel
- Spare Wheel Flange
- Coolant System W/MAG. Sep. &Paper Filter
- Thrufeed Blade (Various Sizes)
- Infeed Workrest (STD)
- Infeed Blade (Various Sizes)
- Hydraulic Auto Infeed Attachment
- Air Eject Attachment
- Long Thrufeed Guides (6FT/EA) W/Stands
- Loading System (Conveyor Type)
- Receiver
- Automatic Loading For Thrufeed
- HYD.Forming Attachment
- Forming Plate /Forming Arbor
- Electrical Eject Attachment
- SBS Dynamic Balance System