Nakanishi (NSK-Nakanishi Inc.), a Japanese company founded in 1930, is a world leader in precision micro grinders and micromotors. Its high-speed tools are used in mechanical workshops, medical, goldsmith and micro-mechanical sectors, where reliability, quietness and machining with minimal tolerances are required. Nakanishi micro grinders stand out for their ability to reach very high speeds, up to 120,000 rpm, with reduced vibrations and ergonomic comfort.
Nakanishi Micro Grinder Range
- Brushless electric micro grindersModels such as the E3000 and E4000 feature high-efficiency brushless motors, digital speed control and run-out precision of < 1 µm. Ideal for fine deburring and polishing of complex parts.
- Pneumatic micro grinders (air turbines)Ultra-lightweight tools with speeds of up to 120,000 rpm, ensuring continuity and reduced fatigue. Perfect for prolonged manual work and quick finishing.
- Interchangeable ergonomic handpiecesCompatible with various collets and accessories, they allow the use of cutters, diamond bits, abrasive wheels and thin discs. Available in compact designs and with non-slip coatings for comfortable use.
- Evolution series micro grindersVersions with electronic control, digital display and fine speed adjustment, particularly appreciated in jewellery, electronics and moulding.
Advantages of Nakanishi micro grinders
- High speed and extreme precision: micrometric tolerances for quality engraving and finishing.
- Quiet and low vibration: superior operating comfort for prolonged use.
- Japanese reliability: premium materials, precision bearings, brushless motors.
- Flexibility of use: electric or pneumatic versions, with interchangeable handpieces and various accessories.
- Reduced processing times: maximum efficiency in deburring, polishing and micro-machining.
Typical applications
- Precision deburring of metal and moulded parts.
- Polishing and finishing of complex surfaces, even in confined spaces.
- Micro-drilling and engraving in electronics, jewellery, dental and watchmaking.
- Machining of moulds and high-precision industrial components.
- CNC applications with direct integration of high-speed electrospindles.
FAQs about Nakanishi Micro Grinders
1. What is the difference between Nakanishi electric and pneumatic micro grinders?
The electric versions offer greater control and precision at adjustable speeds; the pneumatic versions are lighter and reach higher speeds, ideal for intensive manual use.
2. What is their maximum rpm?
Nakanishi micro grinders reach speeds of up to 120,000 rpm, with minimal run-out (< 1 µm).
3. What type of tools can they mount?
Diamond bits, carbide cutters, abrasive wheels, discs, brushes. Interchangeable collets allow them to adapt to different diameters.
4. Are they also suitable for continuous work on production lines?
Yes: brushless motors and pneumatic systems ensure reliability and durability even under harsh conditions.
5. Which sectors use Nakanishi micro grinders most often?
Automotive, aerospace, medical, dental, jewellery, moulding and micro-mechanics.
