UNIVERSAL CYLINDRICAL GRINDING MACHINE M1420X800

Add to Wishlist
Add to Wishlist

1.Table can be tilted for conical grinding operations and scale allows adjustment to desired position

2.Spindle stock can be swivelled 180° for inside grinding operations

3.Main spindle is mounted hydro-dynamically – oil film prevents contact between spindle and bearing

4.Longitudinal table guide and grinding spindle stock cross guide feature V- and flat guiding each

5.Strong reinforcements and generously designed walls make the machine base resistant to temperature fluctuations and deformations

6.Oil film between spindle and bearing reduces the vibrations to a minimum to achieve top results and high accuracy

7.Stepless feed adjustment with selective programmable stop at end of each table movement

8.Precisely adjusted spindle head and solid grinding spindle stock to achieve top processing results at various grinding operations

9.Precisely polished and manually finished guideways in x- and y-axis

10.Hydraulic or manual resetting of grinding spindle stock

11.Longitudinal movement of table is either manually by handwheel or automatically by hydraulic feed

12.Grinding spindle features bearings on both sides and adjustable sliding flat grids

Description

Machine model – original M1420x500 M1420x 800
Grinding diameter without steady rest -> 8-200 8-200
Grinding length -> 500 800
Machine model – Knuth RSM 500 A RSM 800
Machine construction
Hydraulic tailstock standard standard
Internal grinding unit’s position  behind the grinding unit  behind the grinding unit
Work feed on traverse axis (grinding unit back and forth) manual manual
TECHNICAL SPECIFICATION (TS)
Working area
Center height mm 135 135
Travel of worktable(max) mm 640 950
Grinding length mm 500 800
Grinding diameter without steady rest mm 8-200 8-200
Grinding diameter with steady rest mm 8-60 8-60
Inside grinding diameter without rest mm 25-100 25-100
Inside grinding diameter with steady rest mm 35-100 35-100
Inside grinding depth mm 125 125
Workpiece weight between centers (max.) kg 50 50
Table swivel range (max.) ° R / L 3/9 3/7
Feeds
Table feed, infinitely variable – longitudinal axis m/min 0,1-4 0,1-4
Traverse per. rev. of headwheel (mm) mm 1 1
Traverse per. div. of headwheel (mm) mm 0.005 0.005
Headstock
Work spindle speeds 1/min 25 – 380 25 – 380
Working headstock swivel range 0 – 45° 0 – 45°
Spindle taper MT4 MT4
Grinding headstock
Inside grinding spindle speed 1/min 16,000 16,000
Grinding headstock swivel range (r+l) ± ° 30 30
Grinding head travel mm 200 200
Grinding wheel peripheral speed m/s 35 35
Grinding wheel speed 1/min 1670 1670
Tailstock
Tailstock taper MT4 MT4
Quill travel mm 25 25
Drive capacity
Motor rating main drive kW 4 4
Motor rating of internal grinding unit kW share wtih main motor share wtih main motor
Motor rating of hydraulic pump kW 0.75 0.75
Motor rating of working spindle kW 0.75 0.75
Motor rating of coolant pump kW 0.13 0.13
Accuracies
Run-out deviation mm 0.003 0.003
Cylindrical deviation(O.D/I.D) mm 0.008/0.01 0.008/0.01
Roughness(O.D/I.D) µm Ra 0.32/0.63 0.32/0.63
Roundness(O.D/I.D) µm 1.5/2.5 1.5/2.5
Measures and weights
Grinding wheels dimensions mm 400 x 50 x 203 400 x 50 x 203
Grindstone dimensions, inside grinding (max.)  mm 50 x40 x 16 50 x40 x 16
Grindstone dimensions, inside grinding (min.) mm 45 x35 x 10 45 x35 x 10
Overall dimensions (length x width x height) m 2,25 x 1,6 x 1,5 2,25 x 1,6 x 1,5
Weight kg 2,200 2,700