Shinano SI-2210 4" Pneumatic Disc Sander - 13,000 RPM Compact Design - High-Speed Automotive Paint Prep & Industrial Weld Grinding
This Shinano 4" Disc Sander SI-2210 is a high-speed pneumatic disc sander designed for efficient material removal and surface preparation. Its compact and lightweight design allows for easy one-handed operation, making it suitable for various sanding tasks.

Our Shinano 4" Disc Sander SI-2210 is a power tool used for sanding, smoothing, and shaping materials like wood, metal, and plastic. It features a circular sanding disc mounted on a motor-driven spindle, which rotates at high speeds to remove material efficiently.
Key Features:
- Disc Size – Typically ranges from 3 inches to 12 inches.
- Motor Power – Higher wattage means more material removal efficiency.
- Speed (RPM) – Faster speeds provide smoother sanding.
- Dust Collection System – Helps maintain a clean workspace.
- Adjustable Table or Guide – Provides control for precise sanding angles.

Common Uses:
- Woodworking – Shaping and finishing wooden surfaces.
- Metalworking – Removing rust and burrs from metal.
- Automotive Work – Smoothing body panels and paint prep.
- Plastic and Composite Work – Refining edges and surfaces.
Why settle for weak, throwaway air sanders when you can put genuine, Japanese-engineered precision to work for under fifty dollars? The Shinano SI-2210 is a heavy-duty 4-inch workhorse designed to strip rust, level welds, and prep panels all day without breaking a sweat or stalling under load."
Comprehensive Data Attributes Sheet
|
Technical Attribute
|
Certified Specification Value
|
|
Brand
|
Shinano Pneumatic (Inc. Japan)
|
|
Model Number
|
SI-2210
|
|
Product Category
|
Pneumatic Disc Sanders / Grinders
|
|
Free Speed RPM
|
13,000 RPM
|
|
Drive / Spindle Thread
|
3/8"-24 UNF Male Thread Spindle
|
|
Disc Diameter Size
|
4.0 Inches (100mm)
|
|
Average Air Consumption
|
3.5 CFM
|
|
Max Continuous Air Flow
|
14.1 CFM
|
|
Recommended System Pressure
|
90 PSI (6.2 Bar)
|
|
Air Inlet Size
|
1/4" NPT (Industrial Standard)
|
|
Minimum Air Hose ID
|
3/8" (10mm)
|
|
Sound Level (ISO 15744)
|
89 dBA (Power Level: 100 dBA)
|
|
Vibration Level (ISO 28927)
|
2.5 m/s² (K-factor: 0.8 m/s²)
|
|
Net Weight
|
2.6 lbs (1.18 kg)
|
|
Overall Length
|
8.86 Inches (225mm)
|
|
Duty Cycle Rating
|
Continuous Commercial-Grade / Industrial
|
What Makes It Better (Internal Tech & Materials)
-
Japanese Tool Steel Internals: The internal cylinder, rotor, and planetary gears are machined from high-tensile alloy steel to prevent thermal expansion and wear over thousands of operational hours.
-
Composite Structural Housing: Engineered with an insulating composite sleeve that blocks cold compressed air transfer to the user's hands, preventing muscle cramping.
-
Adjustable Rear Exhaust: Features an adjustable 360-degree rear exhaust deflector that directs exhaust air away from the work surface and the user’s face.
Industrial Applications & Workflows
-
Auto Body Restoration: Removing old clearcoats, primers, and bondo filler down to bare metal without marring the sheet profile.
-
Structural Welder Prep: Beveling steel plate boundaries prior to structural welding and polishing down hard weld beads post-operation.
-
Industrial Maintenance: Scraping thick gasket adhesives, heavy scaling, rust, and scale build-up from heavy industrial machinery parts.
In the Box & Support Specifications
-
Standard Items Included: Shinano SI-2210 Disc Sander, 4" Backing Pad, Pad Lock Wrench, 1/4" NPT male plug connector, Instruction Manual, and Parts Schematic.
-
Authorized Dealer Status: 100% Genuine Shinano tool. Sold as an Authorized USA Distributor with original factory parts availability and support.
-
Warranty: Full 1-Year Manufacturer Factory Warranty.
High-Margin System Bundling
-
Can I run this sander on a small portable compressor?
-
Is this tool compatible with standard hook-and-loop or roloc backing pads?
-
How often must I oil this pneumatic sander?
These specifications highlight the SI-2210's capability to deliver efficient performance while maintaining user comfort and control.
*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.