Classic AirGraver®
Handpiece
![](images/Burl-and-ivory-handle-AirGr_small.jpg) |
The
Classic AirGraver® is available with two pistons: Standard stainless
piston and an optional Tungsten Dead Blow™
piston. The chart bellow illustrates the speed ranges of the tool for when it is
set at a short stroke, and for when it is set at the longest stroke.
|
Stainless Piston |
Tungsten Dead Blow™
Piston |
Short Stroke |
Medium Stroke |
Long Stroke |
Short Stroke |
Medium Stroke |
Long Stroke |
Idle |
2,400 |
2,400 |
2,400 |
1,500 |
1,500 |
1,500 |
2 psi |
5,400 |
3,000 |
3,000 |
3,900 |
2,100 |
1,500 |
5 psi |
6,600 |
3,600 |
2,400 |
4,500 |
2,400 |
1,800 |
10 psi |
7,800 |
4,500 |
3,000 |
6,000 |
3,300 |
2,100 |
20 psi |
9,600 |
6,300 |
4,200 |
7,800 |
4,500 |
3,000 |
30 psi |
11,100 |
7,800 |
5,100 |
8,400 |
5,400 |
3,600 |
40 psi |
12,300 |
8,700 |
6,300 |
9,300 |
5,700 |
3,900 |
50 psi |
13,200 |
9,900 |
6,400 |
10,200 |
6,600 |
4,200 |
60 psi |
13,800 |
11,400 |
6,600 |
10,500 |
6,700 |
4,500 |
70 psi |
14,600 |
11,900 |
6,700 |
10,900 |
7,000 |
4,800 |
The AirGraver's length of stroke
adjustment provides a virtual
multitude of handpieces in one tool. At any given stroke length setting
(determined by the adjustment ring on the barrel of the tool), the power
is varied with air pressure from the foot control or PalmControl (.05psi
to 80psi). The absence of an internal spring means uniform performance
throughout the range, with no “sweet spots” or “dead spots”. The full
range of power and speed is "sweet" throughout, due to the internal
automatic balancing of air pressure on both the impact and return
strokes.![watch03 copyb copyb1x1.jpg (27421 bytes)](watch03%20copyb%20copyb1x1.jpg)
The AirGraver's delicate impacts gives the user ideal control. The
AirGraver® system requires air consumption of 0.1 to 0.3 CFM at full
throttle, allowing the use of smaller air compressors.
Left: Close-up of an engraved pocket watch case
engraved using the 5/16" bore AirGraver® handpiece
![rapidchange1.jpg](images/rapidchange1.jpg) |
Rapid Graver Change
The Rapid Change does not utilize inserts or attachments, simply slip a
3/32" graver into an AirGraver® handpiece and it is ready to go. |
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