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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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15 Reviews

  • 5

    Durable and Realiable

    Posted by Liam Chen on 28th Mar 2025

    One of the best micro air grinders I’ve ever used. The Shinano SI-2051SG delivers impressive power at 55,000 RPM, making fine grinding and polishing effortless. It’s well-balanced, with minimal vibration and noise. The durability and precision make it a great addition to any professional or home workshop. Fantastic tool

  • 5

    Highly recommended

    Posted by Mia Castillo on 28th Mar 2025

    I highly recommend it; perfect for precision work Works exceptionally well on metals and ceramics. A top-tier tool for anyone needing fine detailing and finishing. Highly recommended

  • 5

    Durable

    Posted by Caleb Wong on 28th Mar 2025

    I’m seriously impressed with this micro air grinder. It’s lightweight, quiet, and easy to maneuver, even in tight spaces. Shinano always delivers quality, and this tool is no exception. If you need precision, this is the grinder to get

  • 5

    Excellent Quality

    Posted by Diego Ramirez on 28th Mar 2025

    The Shinano SI-2051SG Micro Pneumatic Air Grinder is an absolute beast. At 55,000 RPM, it delivers incredible precision for fine grinding and polishing. Lightweight and easy to control, it’s perfect for detailed metalwork. The build quality is excellent, and it runs smoothly with minimal vibration. Highly recommend for professionals

  • 5

    Excellent tool

    Posted by Sophia Nguyen on 28th Mar 2025

    The Shinano SI-2051SG is compact, powerful, and incredibly precise. It’s great for intricate grinding jobs, and the high RPM ensures a smooth finish. Very little vibration, which makes long use comfortable. A must-have tool for jewelers, machinists, or anyone needing fine detailing work.

  • 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.

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