Dynabrade Products
Dynabrade Products 51393 Air Buffer 6-8 in Pad 4500 rpm pneumatic components power
Pneumatic air buffer for 6 to 8 inch pads running at 4500 rpm with a 5/8-11 spindle and rear exhaust
- 6 to 8 inch pad covers large surfaces
- 4500 rpm free speed delivers rapid material removal
- 5 CFM average consumption suits mid-size compressors
- 90 psi operating pressure matches standard shop supply
- Composite handle with rear exhaust reduces vibration and directs air away
Dynabrade 51393 Air Buffer
The Dynabrade 51393 is a pneumatic air buffer built for automotive detailing and industrial finishing work. It accepts pads from 6 to 8 inches and runs at 4500 rpm free speed. Technicians who need consistent orbital action for waxing, polishing or light sanding will find it suited to daily shop use. It is not intended for buyers who need a random-orbital sander with variable speed control.
Composite handle and rear exhaust
A composite handle reduces vibration transmitted to the operator during extended sessions. Rear exhaust directs airflow away from the work surface and the user. The tool requires a 3/8 inch NPT air inlet and a minimum 3/8 inch hose at 90 psi. Shops without a compressor capable of 35.0 CFM at full load or 8.5 average CFM over a 15 second run time cannot run this buffer continuously.
Upgrading from smaller electric buffers
Moving up from a handheld electric polisher means gaining steady torque without motor heat buildup. The 5/8-11 spindle fits standard backing plates so existing pads can be reused. The jump is worth it when daily buffing volume exceeds what a corded tool can sustain without overheating. It does not replace a dual-action sander needed for aggressive paint correction.
Highlights
- 6 to 8 inch pad covers large surfaces
- 4500 rpm free speed delivers rapid material removal
- 5 CFM average consumption suits mid-size compressors
- 90 psi operating pressure matches standard shop supply
- Composite handle with rear exhaust reduces vibration and directs air away
Specifications
| Brand | DYNABRADE |
|---|
Questions about this item
What pad sizes does the 51393 air buffer accept and what free speed does it run at?
The buffer accepts pads from 6 to 8 inches and runs at a free speed of 4500 rpm.
What air inlet thread and minimum hose size are required for the 51393?
It uses a 3/8 in NPT air inlet and requires a minimum 3/8 in hose.
How is the 51393 connected to an air supply and what pressure must be set?
Connect a 3/8 in hose to the 3/8 in NPT inlet and set the regulator to 90 psi; a common mistake is running the tool below that pressure.
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