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Shinano Pneumatic Tools Japan

Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

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SKU:
SI-2051SG
  • Shinano 55,000rpm Micro Grinder SI-2051SG
  • Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG
  • Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG
  • Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG
$260.00
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Description

Shinano 55,000rpm Micro Grinder SI-2051SG 

This Shinano 55,000rpm Micro Grinder SI-2051SG is a high-speed pneumatic micro grinder designed for precision tasks in various industrial applications. It is ideal for intricate tasks such as working on metal dies, molds, intricate castings, engraving, and wood carving. Its high-speed operation and compact design make it a valuable tool for professionals requiring precision and control in their work. 

Key Features:

  • High-Speed Rotation – It operates at a maximum free speed of 50,000 RPM for precision work.
  • Compact and Lightweight – Easy to maneuver for fine detailing and engraving.
  • Air-Powered – Requires an air compressor, offering continuous operation without overheating.
  • Low Vibration & Noise – Ensures user comfort during extended use.
  • Collet Size – It's equipped with a 3mm (1/8") bits for fine grinding and polishing, making it suitable for detailed work in confined spaces. 
  • Durability – Made with stainless steel or aluminum for long-lasting performance.

Popular Applications:

  • Metal Finishing – Smoothing out rough edges and polishing surfaces.
  • Deburring – Removing excess material from machined parts.
  • Engraving & Carving – Ideal for jewelry, glass, wood, and metal engraving.
  • Mold & Die Grinding – Used in precision tooling and mold finishing.
  • Automotive & Aerospace – Repairs and finishing tasks on delicate parts.
Specification

Collet Size

φ3 , 1/8"

Free Speedr.p.m.(MAX)

50,000

Weightkg/(lb)

0.19/(0.43)

Noise Level *dBA/(power)

71/(82)

Vibration a/k *m/s2

1.2/0.6

Avg.Air ConsumptionCFM/(L/S)

1.0/(0.

*Noise levels according to ISO 15744:2008,ISO 11203:2009
*Vibration level according to ISO 28927

Contact Us: For further details and availability within the storefront in your location. 

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10 Reviews

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Edward Norton on 24th Mar 2025

    This grinder keeps a steady airflow even when operating at high RPMs for prolonged periods of time, avoiding overheating. This is essential for preserving accuracy and extending the tool's life. The design of the air flow is excellent. I'm rather impressed.

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Bruce Scott on 24th Mar 2025

    This micro grinder is ideal for accurate circuit board repair and modification. I can remove and shape components with amazing accuracy thanks to the high RPMs. It is an essential tool for any technician working with electronics. It is quite accurate.

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Allen Wayne on 24th Mar 2025

    This micro grinder is a wonderful time-saver for me because it allows me to polish and correct microscopic faults with amazing accuracy, the high RPMs make the task go much faster, and the tool is quite dependable. I work in mold repair, and this micro grinder has become vital.

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Arthur Morgan on 24th Mar 2025

    This micro grinder is a wonderful time-saver for me because it allows me to polish and correct microscopic faults with amazing accuracy, the high RPMs make the task go much faster, and the tool is quite dependable. I work in mold repair, and this micro grinder has become vital.

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Joshua J. Kent on 24th Mar 2025

    This micro grinder's 55,000 RPM is crazy! It provides me with the utmost accuracy I want for delicate detailing and complex engraving. I feel as though I'm holding a tiny, fast router. The quality is perfect, and the control is amazing.

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Robinson Walker on 20th Mar 2025

    This micro air grinder is one of the best investments I’ve made. It has a solid feel, ergonomic design, and excellent control. The precision is amazing, and it runs buttery smooth without excessive air consumption. Whether for industrial or hobby use, you won’t regret buying this.

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Evans Clarke on 20th Mar 2025

    I work in metal fabrication, and the Shinano SI-2051SG has been a fantastic addition to my toolkit. The speed and accuracy are unmatched, and it’s surprisingly quiet for such a powerful tool. Whether it’s grinding, deburring, or fine polishing, this grinder handles it all effortlessly. Highly recommended for professionals!

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Taylor Wilson on 20th Mar 2025

    This grinder is a game-changer! The build quality is top-notch, and it doesn’t heat up even after extended use. The high RPM ensures fast and precise grinding, making my work much easier. No stalling, no lag—just consistent power. Worth every penny!

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Williams Brown on 20th Mar 2025

    If you're looking for a reliable micro air grinder, this is it! The SI-2051SG is compact but delivers powerful performance. It’s great for engraving, polishing, and deburring, and the air efficiency is excellent. I’ve tried other brands before, but this one outperforms them all.

  • 5

    Shinano 55,000rpm Micro Pneumatic Air Grinder SI-2051SG

    Posted by Smith Johnson on 20th Mar 2025

    I’ve been using the Shinano SI-2051SG for a few weeks now, and I’m beyond impressed. The 55,000 RPM speed provides incredible precision for fine grinding and polishing tasks. It’s lightweight, comfortable to hold, and runs very smoothly with minimal vibration. Perfect for detailed work.

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