STC-18_20
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-18S NC | STC-20S NC | ||
|---|---|---|---|---|
| General Capacity | Work Diamater (with Standard Workrest) (mm) | Ø1~ Ø 60 (Ø0.04"~Ø2.3") | Ø1~ Ø 60 (Ø0.04"~Ø2.3") | |
| Work Diamater (with Special Workrest) (mm) | Ø60~ Ø 100 (Ø2.3"~Ø4") | Ø60~ Ø 120 (Ø3.15"~Ø2.3") | ||
| Auto Infeed Increment (NC Model) (mm) | Ø0.001~9.99 | |||
| Grinding Wheel | Grinding Wheel Spindel Speeds (rpm) | 1520 | 1350 | |
| Dressing Increment | per graduation (mm) | 0.01 (0.0005") | ||
| per revolution (mm) | 2 (0.05") | |||
| Reulating Wheel | Reulating Wheel Spindle Speeds (Infinitely Variable) (rpm) | 13~308 | ||
| Handwheel | per graduation (mm) | 0.05 (0.002") | ||
| per revolution (mm) | 3.5 (0.2") | |||
| Swivelling Angle(R & L) | ±5° | |||
| Inclining Angle | ±5°~ -3° | |||
| Dressing Increment | per graduation (mm) | 0.01 (0.00025") | ||
| per revolution (mm) | 2 (0.05") | |||
| Rapid Feeding of Saddle Handwheel | per graduation (mm) | 0.05 (0.002") | ||
| per revolution (mm) | 9 (0.35") | |||
| Micro Feeding of Saddle Handwheel | per graduation (mm) | 0.001 (0.00004") | ||
| per revolution (mm) | 0.2 (0.005") | |||
| Motor | Grinding Wheel Motor (kW) | 11.2 / (opt.15) | 15 / (opt.19) | |
| Hydraulic Motor (kW) | 1.5 | |||
| Infeed Servo Motor (NC model) (kW) | 1.5 | |||
| Machine Size/ Weight | Net Weight, approx. (kg) | 3000 (6600lbs) | 3400 (7480lbs) | |
| Gross Weight, approx. (kg) | 3500 (7700lbs) | 3700 (8140lbs) | ||
| Packing Dimension (L x W x H - mm) | 2730 × 2240 × 2060 (107" × 88" × 81") | 2730 × 2250 × 2060 (107" × 89" × 81") | ||
Remark：We reserve the right to modify the specification relating to any of the above machines wirhout notice.
Features
- Balancing Stand
- MAG. SEP. &Paper Filter
- Paper Filter
- Input Rail & Output RaiL (L:8" / EA)
- Spare Grinding Wheel
- Spare Wheel Flange
- Long Thrufeed Guides (6FT/EA) W/Stands
- Thrufeed Blade (Various Sizes)
- Infeed Workrest (STD)
- Infeed Blade (Various Sizes)
- Hydraulic Auto Infeed Attachment
- Air Eject Attachment
- Electrical Eject Attachment
- Loading System (Conveyor Type)
- Receiver
- Automatic Loading For Thrufeed
- HYD.Forming Attachment
- Forming Plate /Forming Arbor
- Wheel Balance System
Applications
STC-18~20's Application