Dynabrade 51400 Handheld Pneumatic Buffer 0.4 Hp

Product Description

The DYNABRADE 51400 is a handheld pneumatic buffer designed for surface finishing work in industrial and professional shop environments. Powered by a high-torque planetary-geared air motor, it delivers 0.4 hp and spins at 3,200 RPM with standard rotary action. The tool accepts a 3 inch diameter pad on a 3/8-24 spindle thread and connects to a compressed air supply through a 1/4 NPT inlet. At 1.7 pounds, it is lightweight enough for extended handheld use. Air consumption runs at 24 SCFM at 90 psi operating pressure. Exhaust exits from the rear of the tool, keeping airflow directed away from the work surface.

The 51400 is suited for finishing, polishing, and buffing applications across automotive, aerospace, metal fabrication, and general industrial settings. Its compact 8.75 inch overall length makes it manageable in tight workspaces. The rotary action is appropriate for compound application, final polish, and surface prep tasks where consistent pad speed and reliable motor output are required. This tool is intended for use by trained operators in professional or trade environments where pneumatic tools are standard equipment.

Key Features

• High-torque planetary-geared air motor for consistent rotary output under load
• 3,200 RPM free speed for effective buffing and polishing performance
• 3 inch pad diameter with 3/8-24 spindle thread for standard pad compatibility
• Rear exhaust design directs airflow away from the work surface
• Lightweight at 1.7 pounds for reduced operator fatigue during extended use
• CE and EAC certified for compliance in applicable markets

Compatibility

Designed for use with 3 inch buffing and polishing pads threaded to 3/8-24 spindle specifications. Requires a compressed air supply capable of delivering 90 psi and adequate volume to support 24 SCFM air consumption.

Installation Notes

Installation and operation should be performed by a qualified technician familiar with pneumatic tools and compressed air systems. Before connecting or disconnecting the tool, depressurize the air line and verify the supply pressure does not exceed the rated 90 psi. Ensure the air inlet fitting is compatible with 1/4 NPT connections and that an inline air filter and lubricator are present in the supply line as appropriate for pneumatic tool operation. Inspect the pad and spindle thread for wear or damage before each use.