Surface Grinder Machines

Surface grinders are used for various grinding processes including truing flat metal stock, squaring material within tenths (.0002 inch), sharpening cutting tools and for sharpening punch and die sets. A surface grinder normally consists of a magnetic chuck, which resembles a table, the grinding wheel that is attached to a rotating spindle, and a few handwheels (if manually operated). The workpiece is placed on the magnetic chuck and the chuck is then activated either by a switch or lever. When the chuck is activated the part is then held firmly to the magnetic chuck. The grinding wheel is then moved down to the top of the workpiece using a handwheel, until the grinding wheel touches the part (carefully), then you can begin moving the table side to side and front to back until the entire surface of the part is ground. If more of the surface needs to be ground, move the table so the grinding wheel is off the workpiece and lower the grinding wheel about 0.0002" to 0.0004" using the tick marks on the handwheel and begin moving the table again, this process can be repeated until the desired dimension is accomplished. Our automatic machines move back and forth under hydraulic power via settings on the control panel. A digital readout is a recommended option for precision surface grinders. If you need high accuracy, consider one of our machines that are manufactured in Taiwan, not China. Remember to follow all safety rules for surface grinders as these machines can be dangerous if used improperly. Eye protection is a must.
How to use a surface grinder machine

Acra Precision Manual Surface Grinder • Made in Taiwan (not China) • ISO 9001 factory • Precision roller ball ways • Heavy duty "Meehanite" casting • Roller tracks are Turcite-B coated for long life • Turcite B Coating on slide ways • Double Vee cross slide • Complete coolant system included • Full length splash guards • Table load capacity 300 Lbs.• Hardened & precision ground & hand scraped ways • Dynamically balanced spindle run-out within 0.0002" • Safety 24V low voltage electric controls & overload protection • Automatic continuous lubrication for all ways & lead screws • Adjustable longitudinal table stops and cross feed lock • (4) preloaded class 7 high precision angular contact spindle bearings for precision grinding • Main Motor: 2 HP, 208V/220V/230 Volts, 3phase (optional: 440V/460V, 3phase) • One year warranty for parts • Halogen work light installed • Grinding wheel with flange, 8" dia. x 3/4" thick x 1-1/4" bore • Grinding wheel extractor • Diamond wheel dresser with base • Balance stand, wheel wrench & balance arbor. Specifications SG-618M Click to Request this Quote SG-818M Click to Request this Quote Table (chuck) size 6 x 18" 8 x 18" Table load capacity 300 Lbs 300 Lbs Max griding size, W x L 6.25 x 18.75" 7.87 x 18.75" Max longitudinal travel 18.87" 19" Max cross travel 6.31" 9" Cross handwheel graduation 0.001" 0.001" Cross/handwheel revolution 0.05" 0.05" Vertical downfeed handwheel graduation 0.0002" 0.0002" Vertical downfeed per handwheel revolution 0.05" 0.05" Max distance - spindle centerline to table 16.5" 16.5" Spindle speed 3600 RPM 3600 RPM Grinding wheel size 8"dia x 3/4 x 1.25 8"dia x 3/4 x 1.25 Spindle motor 2 HP 2 HP Coolant pump 1/8 HP 1/8 HP Coolant tank size 8 gallons 8 gallons Overall machine size 55" x 41" x 79" 63" x 49" x 79" Machine weight (pounds) 1720 Lbs 1980 Lbs

OPTIONS: • 6 x 18" magnetic chuck • Dust collector • Newall C80 Digital Readout • Parallel Dresser • Rotary Phase Converter

BIRMINGHAM Surface Grinder Made in China Specifications Model WSG-618 Click to Request this Quote Model WSG-818 Click to Request this Quote Table (chuck) size 6 x 18" 8 x 18" Max griding length 18.50" 19.75" Max grinding width 6.50" 8.25" Spindle center to table - Maximum 15.75" 19.75" Max longitudinal travel 19" 21.62" Max cross travel 7" 9" Longitudinal travel per revolution 4.125" 3.937" Cross travel per revolution. .2" .2" Cross travel per graduation .0008" .0008" Vertical travel per revolution .05" .05" Vertical travel per graduation .00025" .00025" Peripheral speed of wheel 110 feet/sec 110 feet/sec Spindle speed 3600 RPM 3600 RPM Grinding wheel size 8" dia x 1/2" x 1.25" 8" dia x 1/2" x 1.25" Spindle motor 2 HP 2 HP Coolant pump .05 HP .05 HP Lubricating pump .02 HP .02 HP Overall Dimension 55" x 39" x 71" 59" x 47" x 72" Net weight (pounds) 1600 2350

Standard Features: • Fine Graduation on Travels • Cartridge Wheel Spindle • Smooth Roller Way Table • Auto Lubrication on Leadscrews & Ways • Fine grain high tensile casting • Includes Grinding Wheel and Flange • Wheel Balance Arbor • Diamond Wheel Dresser • Work Light • Coolant System • Standard Permanent Magnetic Holder • Tool Box • Hoisting Set • Leveling Pads

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American Machine Tools Co.
5862 Northwest Hwy
Chicago IL 60631 USA
Phone: 773-334-5000
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