Search: Orbital Fastening Forming Heads Precision Line Medium Duty Line Heavy Duty Line Special Applications Selection Guide Screwdriving Screwdrivers Screwdriving Robots Motors & Drivers Feeders Special Machines Fasteners

Orbital Fastening Spinnomatic orbital fastening can be the most cost-effective assembly process for forming and fastening a wide variety of metallic, non-metallic and plastic materials. Noiseless and safe, the Spinnomatic method often replaces conventional riveting, staking, spinning, hammering, upsetting and welding. How Spinnomatic Works: Spinnomatic orbital forming and fastening combines both pressure and orbital motion to accurately form or fasten parts. The tool, held at a slight angle varying between 3° and 6°, is brought to bear on the part. As the tool moves in an orbital path, a minute quantity of material (metal or plastic) is displaced with each rotation of the forming head until forming is complete. The actual forming tool (peen) does not spin, so problems with heat associated with friction are never a problem. Click on the icon to the right to see a demonstration of the orbital forming process. Benefits of Orbital Forming: Accurately and consistently form all types of malleable material No damage to fragile or delicate components Finished headforms unmatched in appearance and uniformity Standard accessories include interchangeable forming heads, multi-spindle and multi-point tooling, pressure pads and index tables Standard Spinnomatic modules are easily integrated into automatic systems Minimal operator skill required Easy operation, quiet and dependable performance Less force required than other conventional methods Minimal maintenance requirements Precise control of rivet shanks for swivel joints Increased machine up-time and production Improved quality and cost savings compared to conventional methods By changing the design of the forming tool (the peen), it is possible to change the shape of the finished head of the rivet. The table on the left shows some of the typical headforms, but our experienced staff in our development lab can design custom peens for any type of application. Our Spinnomatic line of orbital fasteners are completely modular and can be used stand-alone, or fitted on an automatic machine. Figure A show the table mounted version for stand-alone operation. Some of our larger Spinnomatic fasteners are available in a pedestal mounted version (Figure B) to deal with the higher forces used in the process. And Figure C shows the modular Spinnomatic head. The modular head can be mounted to a column in an automated machine or assembly line. Figure A Figure B Figure C