Keep the "clean cut" appearance to your finished parts by keeping matched metal tools sharp (zero clearance). The Pneumatrol hammer can provide "inside", vertical or horizontal peening while the tool is still mounted in the press. As you can see by the photos shown here some limitations may apply, however anywhere a clenched fist will reach can be peened with this tool. Bench peening can also be done using the included handle. Normally the punch and die sets will have the die side soft, 40-45 RC, and the punch side hard, 60-65 RC. The soft side is peened and then sheared, as shown in the diagram below. It is not recommended to peen material above 52 RC as piston damage will occur. The piston makes about 6000 strokes a minute and will seize without sufficient lubrication. Apply a few drops of light oil inside the valve port prior to connecting the air hose. Only lubricated air should be used to operate the hammer. The unique tracer design allows the hammer to follow a corner radius as small as 1/2". The weight of the entire tool is just right to counterbalance the mass inertia of the oscillating piston which results in a smooth even peened surface. The tool comes with a handy carrying case and wrenches to accomplish any setup. This tool is truly "Heavy Duty", however nothing lasts forever so we also supply a complete line of spare parts.
Peen Matched Metal Tools Right Inside The Press
Shown peening "soft" punch in trim press.
"IMPORANT" Lock Out machine before starting.
Shown peening "soft" die in trim press.
Operating Procedures
1. Tracer guide to be in contact with die land at all times. Peening hammer head must be held firmly against top die surface. 2. Line pressure 80 to 100 P.S.I. 3. Peen as necessary until metal appears from die, when punch is entered into die while in trim press. (see diagram at left) 4. Do this on one punch and die at a time.
