12" X 39" Knuth Universal Cylindrical Grinder knuth-usa.com/rsm-1000-c.html
Grinding Diameter 0.3 TO 12.6" With Steady Rest 2" Grinder Length 39" Chuck Diameter 8" Table Feed, Infinitely Variable 3.9-156 In/Min. Table Swivel Range (Max) -3 Degree /+7 Degree Center Height 7" Grinding Head Travel 10" Grinding Headstock Swivel Range 30 Degree Grinding Spindle Speed 0-1,670 Rpm's Grinding Wheels Dimensions 16" X 2" X 8" Grindstone Dimensions, Inside Grinding (Min) 0.7 X 0.8 X 0.2" Grindstone Dimensions, Inside Grinding (Max) 2 X 1 X 0.5 In. Working Spindle Taper MK4 Working Headstock Swivel Range 0-45 Degree Cylindrical Deviation 0.00039 In. Run-Out Deviation 0 In. Inside Grinding Diameter With Rest 1.4 To 3.9" Inside Grinding Diameter Without Rest 1.2 To 3.9" Inside Grinding Depth 4.9" Work Piece Weight Between Centers (Max.) 330 Lbs. Grinding Wheel Feed (Min) 0.0001 " Wheel Speeds 1,365 In/s Work Spindle Speeds 50 Hz. 25-220 Rpm's Feed Per Hand-Wheel Rotation X Axis 0.0394 In. Feed Per Scale Division X -Axis 0.000098 In. Tailstock Quill Stroke 1 In. Tailstock Taper MK-4 Motor Rating Coolant 0.2 Hp. Motor Rating Working Spindle 2 Hp. Motor Rating Hydraulic Pump 1 Hp. Motor Rating Inside Grinding 1.5 Hp. Motor Rating Grinding 7.4 Hp. Motor Rating Main Drive 11.9 Hp. Length X Width 143" X 72" Height 60" Weight 8,140 Lbs.
Large machine bed in a heavy design accommodates workpieces with lengths up to 39 inch and diameters up to 12 inch wide, precision-ground guideways ensure maximum accuracy across the entire workpiece length and accommodate high workpiece weights. The table features large dimensions and swivels in two directions - table movement via hand-wheel or automatically via linear hydraulic feed The robust feed valve allows very precise micro-feed control on the X axis, including a user-adjustable dwell time at the end of the longitudinal table travel Hydraulic ratchet feed simplifies exact X axis positioning, limited by an adjustable zero stop, and repeated feeds by the push of a button The adjustable grinding spindle features superior bearings and provides for maximum precision and surface quality, plus extraordinary tool life and rigidity The grinding spindle motor provides up to 7 HP power and is designed for continuous operation The heavy-duty spindle head swivels 30° to the left and to the right; the work spindle head swivels 45° Standard inside grinder for grinding parts with diameters up to 4 inch Integrated rapid feed on Z axis with manual return. Standard Equipment: 2-axis position indicator, internal grinding equipment, open rest, closed rest, 3-jaw chuck, Ø 7.87", coolant system, grinding wheel dresser, balancing station, balancing mandrel, grinding wheel flange, grinding wheel, center point, front and rear splatter guard, drivers, operating tools, operator manual, test certificate