Dynabrade 52278 Straight Air Die Grinder 0.7 Hp 20000 Rpm

Product Description

The DYNABRADE 52278 is a straight air die grinder designed for precision grinding, deburring, and surface finishing in industrial and trade environments. It operates at up to 20,000 RPM with a rated 0.7 horsepower output, powered by compressed air at 90 psig. The lever-style throttle provides controlled variable operation, and the rear exhaust routes spent air away from the workpiece and operator. It ships with a 1/4 inch collet insert and accepts optional collet inserts for expanded tooling compatibility. Metalworkers, fabricators, and maintenance technicians are the primary users of this tool.

The 52278 is suited for die grinding, port work, weld cleanup, and precision material removal on metal, composite, and hard plastic surfaces. It fits well in manufacturing, fabrication shops, aerospace maintenance, and general industrial service environments where consistent high-speed rotary grinding is required. The compact straight-body format allows access to confined work areas where angle grinders cannot reach.

Key Features

• 20,000 RPM operating speed for efficient material removal
• 0.7 HP air motor rated at 90 psig supply pressure
• Lever throttle for variable speed control during operation
• Rear exhaust design directs airflow away from the workpiece
• Includes 1/4 inch collet insert; accepts optional 1/8 inch, 3/8 inch, 6 mm, and 8 mm collet inserts
• CE Certified and EAC Certified

Compatibility

Includes 1/4 inch collet insert (50013). Fits optional collet inserts: 1/8 inch (50065), 3/8 inch (50014), 6 mm (50016), and 8 mm (50039).

Installation Notes

This tool is installed and serviced by trained metalworkers, maintenance technicians, or pneumatic tool technicians. Before connecting to an air supply, verify the line pressure does not exceed 90 psig and that an inline air filter and lubricator are present per tool manufacturer guidelines. Disconnect the air supply before changing collets or accessories. Follow applicable OSHA and ANSI abrasive wheel safety standards when mounting grinding accessories.