Dynabrade Products
Dynabrade Products 40320 Air Belt Sander 0.5 HP 1/4 in
Air-powered belt sander with a pivoting arm that rotates 360 degrees, 0.5 hp motor and 550 SFPM belt speed for heavy-duty material removal
- TypeSanders
- Weight3.3
- MaterialComposite
- 5 hp motor powers heavy-duty sanding tasks
- Pivoting arm rotates 360 degrees for flexible access
- 550 SFPM belt speed removes material quickly
- 3 lb composite body reduces operator fatigue
- 80 dB sound level keeps workspace quieter
Industrial Air Belt Sander
The Dynabrade 40320 is a heavy-duty air-powered belt sander built for industrial metalworking and fabrication. Its 0.5 hp motor drives a 3/4 in by 18 in belt at a fixed 550 SFPM. The composite body weighs 3.3 lb and uses a pivoting arm that rotates 360 degrees. It is suited for professionals who need consistent material removal in tight or angled workspaces.
Sustained Load Behaviour
Fixed-speed operation at 90 psi delivers steady belt velocity without drop-off during extended grinding sessions. The non-locking lever throttle requires continuous operator pressure, preventing unintended run-on. Air consumption stays at 28 cfm, so a properly sized compressor maintains performance across long shifts. The tool lacks variable speed, limiting its flexibility for delicate finishing passes.
Thermals Noise And Power Draw
Sound output measures 80 dB under load, which is typical for this class of pneumatic sander. Vibration level is listed as not applicable, indicating low hand-transmitted vibration during normal use. The 1/4 in NPT air inlet and 3/8 in minimum hose size keep pressure loss minimal. No vacuum port is fitted, so dust extraction must be handled separately.
Highlights
- 5 hp motor powers heavy-duty sanding tasks
- Pivoting arm rotates 360 degrees for flexible access
- 550 SFPM belt speed removes material quickly
- 3 lb composite body reduces operator fatigue
- 80 dB sound level keeps workspace quieter
Specifications
| Type | Sanders |
|---|---|
| Weight | 3.3 |
| Brand | Dynabrade |
| Material | Composite |
Questions about this item
How loud is the 0.5 hp motor when the sander runs continuously at 4,550 SFPM?
The Dynafile III produces a sound level of 80 dB during operation, which is typical for an industrial air belt sander running at full belt speed.
What air supply components must I already have to run this tool at 90 psi and 28 cfm?
You need a compressor capable of 90 psi and 28 cfm, a minimum 3/8 in hose, and a 1/4 in NPT fitting to match the tool's air inlet.
Will the 1/4 in NPT inlet and 3/8 in hose requirement work with my existing shop airline fittings?
Yes, the 1/4 in NPT air inlet is a standard industrial thread, and the recommended 3/8 in minimum hose size is common on most shop air systems.
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