RAY FOSTER - AG03-MDC Alloy Grinder with Automatic Spindle, 110V 50/60Hz

RAY FOSTER Model AG03-MDC High-Speed Alloy Grinder — 110V

Dual-speed (10K/24K RPM) precision Alloy Grinder with automatic spindle and 2.5″ external dust port

For over 85 years, RAY FOSTER Dental Equipment has manufactured precision Alloy Grinders in Huntington Beach, California for dental laboratories worldwide. The FOSTER Alloy Grinder is the proven workhorse for sprue separation and the finishing and polishing of chrome-cobalt Alloy framework — rugged, comfortable, and built to last.

The AG03-MDC delivers dual belt-controlled speeds of 10,000 and 24,000 RPM with the legendary FOSTER automatic spindle — the reference standard in dental-laboratory Alloy grinding. The MDC suffix denotes the dust-collector-ready configuration with a 2.5″ external suction port.

What Makes This Unique

The FOSTER automatic spindle is the original. Every other lab Grinder on the market either licenses, copies, or imitates it. The MDC variant adds a dust-collector port so labs can run their existing extraction system without rewiring.

💡 Selling Tips for Sales Team

• Lead with workflow. If the lab is running a generic bench Grinder, walk them through how the FOSTER automatic spindle changes tools without shutting down the motor.
• Sell the spindle. The high-speed automatic spindle is the single most copied feature in this category. FOSTER invented it. Replacements are user-serviceable in the field.
• Talk safety to the lab owner. UL/CSA-rated motor, totally enclosed housing, integrated safety shield with light.
• Bundle the dust collector. Step the customer up to the AG03-MDCC (this Grinder + CDC1 Cyclone) for one PO, one warranty, one bench.
• Voltage for export. 220V variant ships for Latin America, the Caribbean, and Europe out of our Miami consolidation.
• AG03 vs. AG04 vs. AG05: AG03 = belt-speed Grinder, no built-in dust; AG04 = same Grinder + self-contained dust collector; AG05 = variable speed to 26,000 RPM.

Works with: RAY FOSTER CDC1 Cyclone Dust Collector and other 2.5″-port shop dust extraction systems; FOSTER F031 high-speed spindle (current production); standard 6-flute carbide Alloy-Grinder cutters and abrasive bands.

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