Why AirGraver?

The AirGraver is a self-running, miniature air engine tool using no springs or electricity. Just blowing in the handpiece will cause it to run. As this is impractical, the handpiece utilizes one of two types of controllers. One controller is a set of regulators that attaches to an air compressor and a foot pedal. The second option is a PalmControl handle that automatically uses the natural palm pressure of the user on the entire handle to control and vary the power of the tool. Even if a person is accustomed to foot pedal engraving, a few minutes with the PalmControl is all it takes to realize the improved responsiveness. The hand is more sensitive than the foot and capable of subtle corrections. Because the tool is self-contained, there is no constant background noise or vibration from a separate power unit.

Features & Benefits of the AirGraver

Feature Benefit
SPM (Strokes per Minute) speed range
Stainless piston: 2,400-15,000 SPM
Tungsten piston: 1,500-11,000 SPM 		Smooth cutting and less point breakage. When desired the point can move though the metal faster. Complete engraving projects faster with improved control
No motorized control box needed No constant background noise or vibration from a motorized control box, less space required
Patented Variable/adjustable piston stroke length Extremely broad cutting range, increased versatility, only one handpiece needed
No piston spring Power range not limited by spring strength
PalmControl available
(patented, patents pending) 		Eliminates foot pedal; easier to learn; no need to coordinate foot and hand movements; intuitive to "hand" engraving
Controls on handpiece Make adjustments "on the fly"
Wall-mount regulator More space on bench
Rubber handle Non-slip for solid control
Supports pocket sized CO2 operation Can be used with no electrical connection; completely portable
Air consumption.
0.05 to 0.2CFM
(CFM= Cubic Feet per Minute) 		Small air compressor or CO2 bottle operation,
Compressor will last longer
No collets needed
(Classic AirGraver Only) 		Faster, easier tool changes
No tuning required PSI and impacts speed are always in sync; no need to manually tune one with the other
Patented idle Prevents possible jump at start of cut
Removable Teflon lined bore
(patent pending) 		Self-lubricated and easily replaced
Hardened piston, anvil and nose; 303 stainless body Durable
Optional Tungsten Dead Blow piston (patent pending) Additional power if needed

Patented and Patent Pending Features of the AirGraver

Length of stroke adjustment

The Classic AirGraver includes a ring or barrel around the outside of the tool that works in a manner similar to the focusing ring on a camera lens. The ring is used to simultaneously adjust the impact speed and power of the tool. Either the PalmControl or a foot control pedal is used to vary the air pressure power within each setting range. This mechanism makes one AirGraver handpiece as versatile as a variety of different-sized impacting gravers.
Idle Adjustment

The patented idle of the AirGraver design prevents jumps that sometimes occur with spring-pulse designs.
Replaceable Bore and Tungsten Piston

The AirGraver bore is removable. The bore's outside diameter also provides an extra chamber that allows the piston to give more of a dead-blow impact effect. Additional power is attained, if needed, with a tungsten piston. The weight of tungsten metal is approximately 2.5 times that of steel which means more power in the same sized package. A patent has been applied for, for this development. To change pistons, the handle is snapped off of the hand piece, the stainless piston dropped out and replaced with the tungsten piston. This feature as well as the previously patented adjustable stroke length gives a vast amount of versatility.
Snap on handle

The PalmControl handles snap off with only 1/4 of a turn. It is an easy and quick method to interchange a tungsten and stainless piston.

Learn More About AirGraver Models

Artisan AirGraver
Classic AirGraver
PalmControl for AirGravers

EngravingForum.com threads comparing the AirGraver to other tools

Lindsay or GRS System
The Lindsay or the GRS
Compressor Queries
Lindsay PalmControl and the GRS Airtact
PalmControl or Airtact?