RC-12NC, RC-18NC, RC-20NC
Paragon USA | Centerless Grinding Machine, NC Series
Brochure 
Every Paragon centerless grinder is designed and manufactured based on the following management concepts: Application of the newest technologies and innovation, endless improvement and progress and customer satisfaction. Assembly is carried out in strict compliance with ISO 9001 directives. All machine bases are manufactured from high quality Meehanite cast iron with a low center of gravity.
NC models control up to two axis, such as grinding wheel dressing and regulating wheel infeed compensation. If more axis are required we need to consider a CNC model.
Grinding spindle with fine hand scraped hydrodynamic bearings made of steel and phosphor bronze alloy with oil lubrication, firmly maintaining high precision rotation and rigidity with heavy duty grinding.
Regulating Wheel is an advanced spindle that dose not require a flange and utilizes precision angular contact bearings. With dual-end supports firmly maintain spindle super precision rotation and rigidity.
NC1-Series: Grinding Wheel: Hydrodynamic Bearings / Regulating Wheel: Hydrodynamic Bearings
BNC2-Series: Grinding Wheel: Hydrodynamic Bearings / Regulating Wheel: Ball and Roller Bearings
Other models and buildups for high-speed centerless production and angular grinding are available upon request.
NC models control up to two axis, such as grinding wheel dressing and regulating wheel infeed compensation. If more axis are required we need to consider a CNC model.
Grinding spindle with fine hand scraped hydrodynamic bearings made of steel and phosphor bronze alloy with oil lubrication, firmly maintaining high precision rotation and rigidity with heavy duty grinding.
Regulating Wheel is an advanced spindle that dose not require a flange and utilizes precision angular contact bearings. With dual-end supports firmly maintain spindle super precision rotation and rigidity.
NC1-Series: Grinding Wheel: Hydrodynamic Bearings / Regulating Wheel: Hydrodynamic Bearings
BNC2-Series: Grinding Wheel: Hydrodynamic Bearings / Regulating Wheel: Ball and Roller Bearings
Other models and buildups for high-speed centerless production and angular grinding are available upon request.
| Model | RC-12NC | RC-18NC | RC-1812NC | RC-20NC |
| Grinding Range (dia.) | 1-30mm | 2-50mm | 2-50mm | 2-50mm |
| Grinding Wheel (mm) | 305x150x120 | 455x205x228.6 | 455x205x228.6 | 510x205x304.8 |
| Grinding Wheel Speed (m/min) | 2000 | 2000 | 2000 | 2000 |
| Regulating Wheel (mm) | 230x150x127 | 280x205x139.7 | 305x305x177.8 | 305x205x177.8 |
| Regulating Wheel RPM | 10~300 | 10~300 | 10~300 | 10~300 |
| Regulating wheel tilt | +/- 5° | +/- 5° | +/- 5° | +/- 5° |
| Regulating wheel swivel angle | +/- 5° | +/- 5° | +/- 5° | +/- 5° |
| Dimensions (mm) | 2460x2300x1700 | 3000x2830x1730 | 3200x2830x1730 | 3250x3010x1730 |
| Weight (kg) | 2,100 | 4,200 | 4,500 | 4,800 |
Specifications subject to change. Please contact us for more information.
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