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Precitech offers a multitude of both workholding and grinding or milling solutions for our machining systems.
- The SP and NT workholding and tooling spindle shafts are ground on a high precision CNC grinding machine which enables grinding of the radial and axial faces in one setup which ensures squareness and virtually eliminates once per revolution errors.
- They also utilize a hardened stainless steel shaft and bronze journal which prevents damage to the spindle in the unlikely event of spindle rotation without air.
- As and additional resource to our customers, we provide Professional Instruments ISO spindles which can be configured to our machining systems as well.
- Our grinding options can be configured for grinding, spiral milling and raster milling and can be placed horizontally, vertically and at 45° orientations for customer specific applications.
| Spindles |
SP-75 High Speed |
SP-150 Heavy Duty |
NT-151 Large Capacity |
| Configurations |
Nanoform® 250 |
Nanoform®, Freeform® Series |
Nanoform® 700 |
| Type |
Slot-restrictor type thrust bearing |
| Centerline/ tabletop(swing) |
127mm (5.0") |
127mm (5.0") |
127mm (5.0") |
| Material |
Steel shaft/Bronze journal |
| Motor |
Integral DC brushless - 1000 line encoder |
| Max Speed |
15,000 RPM |
5,000 / 7,000 RPM |
5,000 RPM |
| Load Capacity (nose) |
18 Kg (40 lbs.)@6.9 bar (100PSI) |
68 Kg (150 lbs.)@6.9 bar (100PSI) |
150 lbs.@ (100 PSI) |
| Axial Stiffness |
70N/µm (175,000 lbs./in.) |
228N/µm (1,300,000 lbs./in.) |
261N/µm (1,500,000 lbs./in.) |
| Radial Stiffness |
22N/µm (400,000 lbs./in.) |
87N/µm (500,000 lbs./in.) |
105N/µm (600,000lbs./in.) |
| Motion Accuracy |
Axial/Radial < 50nm (2µ") |
Axial/Radial < 25nm (1µ") |
Axial/Radial < 50nm (2µ") |
| Thermal Control |
Air or Liquid cooling |
Liquid cooling |
| Spindles |
SP-75FF Heavy Duty |
SP-2.25 High Speed |
LoadPoint |
Configurations
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Nanoform®, Freeform® Series |
Nanoform®, Freeform® Series |
Nanoform®, Freeform® Series |
| Air Supply Presure |
689 KPA (100PSI) |
689 KPA (100PSI) |
689 KPA (100PSI) |
| Air Consumption |
2.8 l/s (6 SCFM) |
0.91 l/s (2.0 SCFM) |
0.81 l/s (1.8 SCFM) |
| Cooling Water flow |
4 LPM (1 GPM) |
4 LPM (1 GPM) |
1 LPM (0.25 GPM) |
| Ultimate Radial Load Capacity |
18 Kg (40 lbs.) |
20 Kg (44 lbs.) |
7 Kg (15.4 lbs.) |
| Axial Stiffness |
70N/µm (400,000lbs./in.) |
68.6N/µm (392,000lbs./in.) |
12.7N/µm (72,500lbs./in.) |
| Radial Stiffness |
22N/µm (125,000lbs./in.) |
22.6N/µm (130,000lbs./in.) |
5.4N/µm (31,000lbs./in.) |
| Axial Error Motion |
0.05µm (2µ") |
<0.050µm total - <0.025µm sync. |
unspecified |
| Radial Error Motion |
0.05µm (2µ") |
<0.050µm total - <0.025µm sync. |
unspecified |
| Maximum Speed |
10,000 or 15,000 RPM |
50,000 RPM |
110,000 RPM |
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