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Pistol-grip air random orbital sander, silver aluminium body, 5-inch PSA pad, rear exhaust, lever throttle

Dynabrade Products

Dynabrade Products 58400 Air Random Orbital Sander 0.45 hp 5 in

SKU CH-B8CM-YFFBK MPN 58400

Air random orbital sander with 0.45 hp motor, 5 in pad, 12,000 RPM free speed and 3/16 in orbit diameter

  • TypeSanders
  • 45 hp motor delivers consistent sanding power
  • 12,000 RPM free speed enables rapid material removal
  • 3/16 in orbit diameter produces fine swirl-free finishes
  • 75 CFM average consumption suits standard shop compressors
  • 11 1/16 in pistol-grip body balances control and reach

Air random orbital sander, 5-inch pad

This air-powered random orbital sander carries the Dynabrade 58400 model number and delivers 0.45 hp from a pistol-grip body. The 5-inch PSA pad runs at 12,000 rpm with a 3/16-inch orbit diameter. It operates at 90 psi and consumes 5.75 cfm average during a 15-second run or 23.0 cfm at full load. A 1/4-inch NPT inlet and 1/4-inch minimum hose complete the air supply.

Suited for industrial finishing.

The non-vacuum design directs dust into the surrounding area, so it suits workshops that capture debris separately or tolerate airborne particles. The fixed-speed lever throttle and rear exhaust favour continuous production use rather than detail work requiring variable speed. Buyers needing integrated dust collection or speed control should look at alternatives that provide those features.

3/16-inch orbit diameter determines finish

This single measurement sets the material removal rate and surface pattern for every job. A 3/16-inch orbit balances stock removal with a fine finish on wood, metal or composite panels. If the application demands a finer swirl mark or heavier cutting action, a different orbit diameter will be required.

Highlights

  • 45 hp motor delivers consistent sanding power
  • 12,000 RPM free speed enables rapid material removal
  • 3/16 in orbit diameter produces fine swirl-free finishes
  • 75 CFM average consumption suits standard shop compressors
  • 11 1/16 in pistol-grip body balances control and reach

Specifications

TypeSanders
BrandDynabrade
Model58400

Questions about this item

Does the 58400 sander ship with a backing pad or abrasive discs, or must those be purchased separately?

The sander uses a 5 in PSA pad face, so a compatible hook-and-loop or adhesive backing pad and 5 in abrasive discs are required and are not included.

The spec lists 0.45 hp and 12,000 RPM free speed — which version or capacity should I choose for general shop use?

This is a single fixed-spec model rated at 0.45 hp with 12,000 RPM free speed; there are no alternative capacity or speed versions to select.

What does the 3/16 in orbit diameter mean for material removal when the tool is running at 90 psi?

A 3/16 in orbit gives aggressive stock removal while still producing a swirl-free finish on wood, metal or composite surfaces at the rated 90 psi.

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