12" X 39" Knuth Universal Cylindrical Grinder
Have one to sell?
ConditionNew
1 available
New
12" X 39" Knuth Universal Cylindrical Grinder
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.
Machine Floor Space................................... 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
We use cookies to improve your experience. Privacy Policy.