This 2015 Okamoto Linear 612B Surface Grinder is a precision hand-feed toolroom grinder with a 6" x 18" nominal grinding capacity, a 6" x 12" O.S. Walker "Fine-Division" LBP electro-magnetic chuck, 14.27" of longitudinal table travel, and 8.27" of cross travel. A 2 HP direct-drive spindle turns an 8" x 1/2" x 1-1/4" wheel at 3,450 RPM, and 0.0001" handwheel graduation paired with Meehanite cast iron construction, linear ball-bearing table ways, belt-driven table motion, and an automatic recirculating lubrication system lets a toolmaker hold tight tenths on dies, fixtures, gauges, and small production work without giving up the rigidity of a 1,850-lb floor-standing machine. A Magnescale 2-axis digital readout and O.S. Walker variable-hold neutrofier chuck control are already on the machine, and it is set up for dry grinding with an inlet on the side of the wheel cover. Compared to older Okamoto 6-inch hand-feed surface grinders that rode on plain-V slideways with coarser vertical handwheel graduations, the Linear B Series moves the table on linear ball bearings driven by a belt drive and holds 0.0001" graduation right at the handwheel - changes that pull the stick-slip and backlash out of fine downfeed, where earlier machines turned the last half-thousandth into a guessing game. The Meehanite cast iron base and automatic recirculating lubrication keep that accuracy stable across a full shift, and the Magnescale 2-axis readout removes the dial-counting that an older plain-way 612 demanded on every pass. MakeOkamoto ModelLinear-612B Year2015 Product #16947 Price Please login to see price. Make an Offer Get a Quote Share Ask a Question About This Machine Stop hunting for a hand-feed surface grinder that actually holds tenths - this Okamoto Linear 612B brings 0.0001" handwheel graduation, linear ball-bearing table ways, and a 2 HP direct-drive spindle running an 8" wheel at 3,450 RPM into a single 1,850-lb toolroom-grade package. Plug it in and your shop can grind dies, gauges, and small production parts to repeatable, predictable accuracy the same day, on Meehanite cast iron construction built to outlast cheaper imports under daily toolroom use. **All descriptions and specifications are preliminary and must be confirmed by buyer prior to purchase.** Live Tooling / Milling Specifications Vertical Table / Pallet Size: 14.17" x 5.9"" X-Travel: 14.27" Y-Travel: 8.27" Spindle Spindle Motor: 2 HP Second Spindle Tool Changer Turret Control Tailstock / Steadyrest Options Product Description: Manual Hand-Feed Surface Grinder Nominal Grinding Capacity: 6" x 18" Table to Underside of 8" Grinding Wheel: 14.27" Grinding Wheel Speed: 3,450 RPM Wheel Size: 8" x 1/2" x 1-1/4" Movement Per Handwheel Revolution: Table 5.12", Saddle 0.1", Vertical 0.05" Handwheel Graduation: 0.0001" Meehanite Cast Iron, Heavy Duty Construction Smooth Table Movement Through Reliable Belt Drive Table Glides on Linear Ball Bearings Automatic Recirculating Lubrication System 2 HP Direct Drive Spindle Magnescale 2-Axis Digital Readout Display 6" x 12" O.S. Walker "Fine-Division" LBP Electro-Magnetic Chuck O.S. Walker Variable Hold Neutrofier / Chuck Control Set Up for Dry Grinding, with Inlet on Side of Wheel Cover Wired for 460 Volts, 3 KVA Power Rating Electrical: 230-460V, 3PH, 60Hz