GRS® GraverMax® G8 Air System
Alternate Text Alternate Text GRS® GraverMax® G8 Air System

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WARNING: This product can expose you to chemicals including lead, nickel, which are known to the State of California to cause cancer, birth defects or other reproductive harm (


Offering versatility and precise control, the GRS® GraverMax® is a high-quality pneumatic air system for stone-setters and engravers. It provides precise control and consistent impact with an excellent range of power and allows you to easily change from hand- to foot-control in seconds. The unit offers a variable stroke speed and quick-connect fittings that allow the unit to work with most GRS handpieces (available separately). Three ports allow you to connect two handpieces and a rotary tool so you can quicky switch between them.
• Easily adjust and use the front-mounted precision regulator.
• The combination filter and water trap mounts either right on the machine or remotely.
• Porting technology ensures crisp, precise impact at any speed.
• Power and air hook-ups at the back of the machine are placed high enough to clear your workbench rail, minimizing the machine's footprint.
• Dual voltage capability for compatibility with almost any single-phase AC power source in the world, simply change the cord and flip a switch to toggle from 110-volt to 220-volt.
• Includes a foot control.

  • Brand : GRS
  • Model or style no. : 004-995
  • Dimensions : 5-1/4"W x 12"D x 8-1/4"H
  • Amperage : .75 amps
  • Frequency : 50/60Hz
  • Voltage : 110/220 volts (dual)
  • Country of origin : United States
Additional Specifications:
  • Stroke speed: 400–8,000spm
    Min. air compressor requirements: 45psi (3 bar), 1.4cfm (40 liters per minute) flow.
    Max. input: 120psi

Please Note: • This air system requires clean, dry, oil-free air; we recommend an oil-free compressor for use with this system. For any oil-type compressors, an oil-removal filter (coalescing type) in the air supply line to this engraving system must be installed and in use. Oil or water contamination is not covered by warranty.
IMPORTANT: This item is wired for dual 110- and 220-volt capability and is sold with a U.S. plug. Because amperage, outlets and plugs vary widely by location, you may need a different plug. If so, you are responsible for having the appropriate plug or adapter installed by a qualified professional. Rio Grande assumes no liability for improper or inadequate re-wiring or adapters procured by customer.
• Customers within the European Union: Please be aware that, because this product no longer meets the CE compliance requirements of Machinery Directive (2006/2009/42/EC) of the European Commission, it cannot be exported to EU member countries (including EFTA countries—Iceland, Norway, Liechtenstein and Switzerland—by virtue of their mutual recognition agreement with the EU, and Turkey by virtue of the EU-Turkey Customs Union). Customers outside the European Union, please call us directly to order this equipment.

Catalog page: 2020-2021 Tools and Equipment Catalog p. 334