1979 BLANCHARD 11D-20 VERTICAL ROTARY SURFACE GRINDER, 20IN CHUCK, 15 HP, 1200 RPM, 7200 LBS

THE BLANCHARD 11D-20 IS A VERTICAL ROTARY SURFACE GRINDER DESIGNED FOR PRECISION INDUSTRIAL APPLICATIONS. THIS 1979 MODEL FEATURES A 20-INCH DIAMETER ONE-PIECE STEEL MAGNETIC CHUCK AND IS POWERED BY A 15 HP SPINDLE MOTOR. THE MACHINE PROVIDES A VERTICAL RANGE OF 9 TO 12 INCHES OVER THE CHUCK AND A MAXIMUM SWING CAPACITY INSIDE THE WATERGUARDS OF APPROXIMATELY 21 INCHES. IT UTILIZES AN 11-INCH DIAMETER CYLINDER OR SEGMENTED GRINDING WHEEL, TYPICALLY OPERATING AT A SPEED OF 1200 RPM. THE WORK TABLE OFFERS FOUR GEARED CHUCK SPEEDS OF 15, 24, 41, AND 64 RPM, DRIVEN BY A 1 TO 2 HP MOTOR. THE VERTICAL DOWNFEED SYSTEM IS ADJUSTABLE WITH POWER FEED RATES RANGING FROM .003 TO .070 INCHES PER MINUTE, COMPLEMENTED BY A RAPID TRAVERSE MOTOR FOR THE WHEEL HEAD.