Eliminates Hand Finishing
Harperizers remove the need for hand finishing, increase your productivity, and produce a more uniform, consistent finish. Our technical department can help you determine the proper cycle times, G-force, and media selection.
Low Maintenance & Gentle Action
All Harperizers are engineered to meet the demands of industrial environments. Ease of maintenance and serviceability translate to years of dependable operation. Parts are continually encased in media during Harperizing, producing an aggressive, yet gentle action.
Very High Speed & Precision Finishing
Typical processing times of 5 to 30 minutes reduce per part cost as well as inventory, lead times, and required floor space. Maintain tolerances as low as 0.0001 inches.
Choose a Harperizer to meet any of the following needs:
- Stress Relieving
- Part Deflashing
- Smoothing of Surfaces
- Generating Edge & Corner Radius
- Generating Compressive Stresses
- Material Removal
- Surface Cleaning
- Surface Refinement
- Achieving High Micro Finish
- Pre-Plate & Pre-Paint Finish
Send Us Your Parts or Prints
With over 3,000 Harperizers in service, our engineers can pick the right machine and the right process to meet your requirements. Send us your parts or prints, and we will improve your uptime.
Summary of the Harperizing Process
In the Harperizing process, a flywheel turret rotates at high speed while the individual drums are counterrotated. This places the mass under compression and generates friction against the drum wall. An abrasive action gently rubs the media against the parts while under the high G-force compression.
The sliding action is gentle as well as uniform and eliminates tumbling, cascading, or the pile up of media parts. The result of this action is a significantly accelerated process. Harperizing can be 90 times faster than conventional barrel tumbling and 30 times faster than vibratory finishing. Even the most delicate parts may be Harperized without damage or distortion.
Harperizers are available in various sizes and configurations including vertical or horizontal axes, and with fixed or removable drums. Capacities range from less than 1 cubic foot to over 30 cubic feet. Harperizers can be equipped with automated material handling systems to convey, separate, and load parts and media. They can accommodate parts as tiny as 0.003" diameter or massive forgings weighing over 250 pounds.