Rollomatic NaNO 6X
Key Specifications
Number of CNC Axes
Minimum Tool Diameter
Maximum Tool Diameter
Maximum Grinding Length
Grinding Spindle Speed
Grinding Spindle Power
Overview
The Rollomatic NaNO 6X is an ultra-precision 6-axis CNC tool grinding machine purpose-built for manufacturing micro tools with diameters as small as 0.03 mm. Engineered specifically for the medical device, semiconductor, electronics, and watchmaking industries, the NaNO 6X addresses the unique challenges of grinding tools at the microscale — where thermal stability, vibration isolation, and optical inspection are as critical as cutting geometry accuracy. The machine represents the extreme end of Rollomatic's capability spectrum, enabling tool manufacturers to produce burrs, micro drills, and end mills that are simply impossible on conventional grinders.
At its core, the NaNO 6X features an air-bearing grinding spindle capable of rotating at up to 60,000 RPM, essential for maintaining appropriate surface speeds when wheel diameter must be miniaturized to reach micro tool geometries. The machine's thermal compensation system continuously monitors spindle and axis temperatures, applying real-time corrections to eliminate thermal drift over long production runs. Linear scales with 0.1 µm resolution feed position data back to the Fanuc control, achieving positioning accuracy of ±0.0005 mm across all six axes.
Rollomatic pairs the NaNO 6X with an integrated vision system — a high-magnification CCD camera mounted in the working zone — that allows in-process measurement of tool geometry without removing the part from the machine. Operators can verify cutting edge radius, flute width, and point angles at magnifications up to 200x. This eliminates the need for an external optical comparator in many cases and reduces the time spent in quality inspection loops.
The NaNO 6X accepts wheel packs pre-dressed to sub-micron profiles, and Rollomatic supplies matched grinding wheel specifications optimized for the tungsten carbide and HSS substrates typical in micro tool blanks. The machine's compact footprint and vibration-isolated foundation mount make it suitable for installation in temperature-controlled metrology rooms adjacent to inspection equipment, reflecting the precision environment this machine demands.
Full Specifications
| Parameter | Value |
|---|---|
| Number Of CNC Axes | 6 |
| Minimum Tool Diameter | 0.03 mm |
| Maximum Tool Diameter | 12 mm |
| Maximum Grinding Length | 80 mm |
| Grinding Spindle Speed | Up to 60,000 RPM (air bearing) |
| Grinding Spindle Power | 2.2 kW |
| Positioning Accuracy | ±0.0005 mm |
| Linear Scale Resolution | 0.1 µm |
| Vision System | Integrated CCD, up to 200x magnification |
| Thermal Compensation | Real-time, all axes |
| Control System | Fanuc 31i-B5 |
| Machine Base | Granitan with active vibration isolation |
Specifications sourced from rollomaticusa.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 60,000 RPM air-bearing spindle enables correct surface speeds for extremely small grinding wheels on micro tools
- 0.03 mm minimum tool diameter capability is among the smallest in any production CNC grinder
- Integrated high-magnification vision system eliminates the need for a separate optical comparator in many workflows
- Real-time thermal compensation prevents drift during long unattended micro tool production runs
- Granitan base with active vibration isolation achieves the environmental stability required for nanometer-level precision
Limitations
- Extremely high capital cost and demanding environmental requirements (temperature, vibration) limit deployment to specialist facilities
- Maximum tool diameter of 12 mm means the machine cannot be used for standard-size tooling, reducing versatility
- Tooling, wheel dressing, and fixturing for micro-scale work require specialized expertise not common in general tool grinding shops
Best For
Frequently Asked Questions
01
The NaNO 6X can grind tools as small as 0.03 mm (30 microns) in diameter. This requires specialized micro grinding wheels, ultra-clean coolant, and a thermally stable environment, but Rollomatic provides application support for these extreme cases.
02
Air-bearing spindles have essentially zero mechanical contact, so there is no bearing-induced runout. For micro tools where cutting edge geometry tolerances are measured in microns, even a few microns of spindle runout would be unacceptable. Air bearings also run at very high speeds (up to 60,000 RPM) needed for appropriate surface speeds on tiny grinding wheels.
03
Yes, Rollomatic offers a dedicated micro-loader for the NaNO 6X that handles delicate tool blanks at small diameters. However, lights-out automation at the micro scale requires careful fixturing and is typically implemented for higher-volume runs of a single tool type.
04
Primary industries include medical device manufacturing (surgical instruments, dental burrs), electronics (PCB micro drills, semiconductor tooling), watchmaking (horological milling cutters), and aerospace (micro-hole drilling tools for fuel system components).
05
Rollomatic recommends installation in a temperature-controlled room held at 20°C ±1°C with active vibration isolation between the machine and the building floor. The machine includes its own internal vibration isolation system, but external sources of vibration from nearby equipment or traffic can affect performance at the nanometer level.
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