Classic AirGraver
The versatile Classic is the same handpiece as its predecessor, but the new bore is easily replaceable with a removable sleeve. The Classic comes standard with a stainless piston. A second piston (tungsten dead blow) can be purchased for additional power. Three handpiece tubing attachment locations for customability and comfort. Non-slip rubber handle. Full stroke adjustment. Rapid 3/32" square graver change without collets. Lindsay gravers are made form surgical stainless steel. No aluminum is used in the construction of the tool.
Gallery of work created with the Classic AirGraver
Classic handpiece with supple black rubber handle (without controller)Can be controlled with a foot controller, a PalmControl handle, or both. |
$995 |
|
Classic handpiece with foot control, idle adjust and dual regulators |
$1244 |
|
Classic handpiece with PalmControl |
$2690 |
|
Tungsten Dead Blow Piston |
$125 |
|
The tool's patent pending removable bore provides for an extra air pocket in the handpiece. This pocket is ported to the rear chamber, providing the following improvements:
- The piston changes directions in the rear chamber gradually, resulting in less vibration, smoother cutting and less noise.
- The piston hesitates for a few microseconds in the front chamber following an impact stroke, giving the effect of what is known as a "dead blow". This is what occurs when a hammer hits an anvil and there is no recoil. The impact inertia is transferred through the anvil to the graver with no bounce. The result is less vibration, and more energy transferred to the graver.
- The patented idle is improved. The idling handpiece can be turned down finer than prior handpieces, and, with the stainless piston, can be turned down so low that it is not felt. The tool will idle with less air (or CO2), as well as more easily maintain an idling state. Small amounts of oil from an older unfiltered air compressor do not affect the idle as much as on prior configurations.
The Classic 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.
An advantage to the AirGraver design is the speed at which it can move a graver physically through the metal when desired. The throttle range is possible because the tool's speed and power work together. If the tool would only increase in power but not with speed, the result will be more broken points and staggered stair cut marks in the cuts. Increasing impact speed and power together will deliver an improved, wide range of throttle speeds. An experienced engraver can increase their productivity significantly.
The Classic handpiece includes length/speed stroke collar, rapid graver change, a Teflon bore in a 303 stainless body, and a hardened 440C stainless piston, anvil, and nose. No collects required for rapid graver change. Also included are three high speed steel 3/32" square graver blanks, a leather handpiece pouch, extra screws, wrench and owner's manual. Requires 60psi regulated compressed air from an air compressor.
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 stroke adjustment of the Classic AirGraver makes the tool perform like numerous handpieces in one.
|
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.
Right: Close-up of an engraved pocket watch case engraved with the AirGraver |
|
| The Rapid Change of the Classic does not utilize inserts or attachments, simply slip a 3/32" graver into an handpiece and it is ready to go. The graver can also be locked down with using a setscrew or thumb screw if desired. |
|
| The inset in the butt of the custom burl wood and ivory handles is a banknote style engraving, designed for the tool and reproduced with a restored 1915 150 ton coining press. The design was engraved in tool steel, hardened, and used to reproduced itself in the press. |
|
|
The Classic handpiece comes with a stainless piston. A tungsten dead blow piston can be purchased separately. Tungsten weights 2.5 to 3 times more than stainless and provides heavier impact power for deeper engraving, carving or hammering.
Right: Classic handpiece with a PalmControl handle set up to run from a pocket sized CO2 cartridge. |
|
|
"As far as I'm concerned, the Lindsay PalmControl is worth every penny."
-Phil Coggan |