Dynabrade Products
Dynabrade Products 56890 Air Random Orbital Sander 0.28 hp 6 in
Air random orbital sander with a 6-inch pad, 0.28 hp motor and 12,000 RPM free speed for industrial finishing work
- 28 hp motor delivers 12,000 RPM free speed for fast material removal
- 3/8 inch orbit diameter produces smooth random orbital finish on work surfaces
- Palm-style body with lever throttle gives comfortable one-hand control during extended use
- Rear exhaust directs air away from the work area keeping surface clean
- 5 CFM average consumption at 90 psi suits standard shop compressor setups
6-Inch Air Random Orbital Sander
The Dynabrade 56890 is a pneumatic finishing tool built for surface preparation on wood, metal or composite panels. Its palm-style body and lever throttle give operators direct control during extended sanding sessions. Industrial-duty construction supports daily use in professional workshops. The 3/8-inch orbit diameter produces a consistent swirl-free finish.
Air Consumption and Pressure Requirements
Operating at 90 psi, the sander draws 4.5 CFM during a 15-second run and 18.0 CFM at full load, demanding a compressor that can sustain high continuous flow. The 1/4-inch NPT inlet and minimum 1/4-inch hose size limit airflow if undersized fittings are used. Free speed reaches 12,000 RPM with no variable-speed adjustment available. Rear exhaust directs air away from the workpiece.
Non-Vacuum Palm Sander Upgrade
This model replaces non-vacuum palm sanders when a larger 6-inch pad and fixed high speed are preferred for rapid material removal. The jump is worth it for operators who need the 5/16-24 spindle compatibility and can supply 18 CFM continuously. Buyers who require integrated dust extraction or variable speed control should consider alternative configurations.
Highlights
- 28 hp motor delivers 12,000 RPM free speed for fast material removal
- 3/8 inch orbit diameter produces smooth random orbital finish on work surfaces
- Palm-style body with lever throttle gives comfortable one-hand control during extended use
- Rear exhaust directs air away from the work area keeping surface clean
- 5 CFM average consumption at 90 psi suits standard shop compressor setups
Specifications
| Brand | DYNABRADE |
|---|
Questions about this item
How does the 6-inch pad affect material removal speed?
A 6-inch pad covers more surface per pass, so stock comes off faster than with smaller pads, especially on broad panels.
What does the 0.28 hp rating mean for daily use?
At 0.28 hp the sander delivers 12,000 RPM free speed and 18.0 CFM at full load, enough for light-to-medium finishing work.
What airflow does the 1/4-inch NPT inlet require?
The tool needs 4.5 CFM average at 15-second bursts and 18.0 CFM continuous at 90 psi through a minimum 1/4-inch hose.
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