Rotary-table surface grinding machine KEHREN RS 15 CNC, Year of manifacturing 1992

rotary table diameter: 1500 mm
grinding height: 500 mm
grinding head - power requirement: 110 kW
Control: SIEMENS Sinumerik 3 G
total power requirement: 140 kW
weight of the machine ca: 17000 kg
dimensions of the machine ca: m

K E H R E N (Germany)
CNC Controlled Vertical Rotary Table Surface Grinder
Model RS 15 – CNC Year 1992 Serial No. 4274
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Built-on Magnetic rotary table Ø 1.500 mm (!)

Working height under grinding wheel, max. 500 mm
Segmental Grinding Head Ø 900 mm
Grinding Head adjustment vertical 500 mm
Grinding spindle speed 750 rpm
Grinding spindle drive 110 kW !

Table Travel, horizontal stroke 900 mm
Table speed by hydraulic motor, infinitely variable 5 - 22 rpm
Max. load on table 2.000/5.000 kg

Vertical infeed of grinding head, infinitely variable 0.05 – 0.5 mm/min
Vertical quick feed approx. 280 mm/min

Total electrical load, approx. 140 kW - 380 V - 50 Hz
Weight, approx. 17.000 kg

Accessories / Special Features
SIEMENS CNC Control, Model SINUMERIK 3 G for infeed of grinding head (Z),
table adjustment (X), dressing amount and speed (W, V) with all the
necessary cycles and programming possibilities. Manual Control unit for
correction of cutting parameters
CNC controlled automatic grinding process with input of feed amounts for
pre-grinding, fine grinding,finish grinding, spark-out and lift-off from
workpiece.
CNC controlled swivelling grinding wheel dressing device, built on below
the segmental head with automatic compensation. Dressing can be done
during the grinding process, i.e. the grinding head and rotary table stay
in place.
Automatic Swivelling of grinding head from cross grinding to radial
grinding,
Radial grinding = higher material removal. Cross grinding = more accurate
and flatness
Rotary magnetic chuck with ring pole division and stepless adjustment of
magnetic power.
Adjustable gap control (to avoid air grinding),
Separate switch and control cabinet with Amperemeter for Grinding Power
Large Coolant device with 2 Magnetic Separators and large intermediate
tank for approx.
3000 Ltrs. Coolant Liquid, Coolant Supply thru grinding spindle center,
Oil mist exhaust,

Condition : Good to very good. Machine can not be demonstrated under power
because of high Power rate.
Delivery : Ex stock, as inspected.
Payment : Net, after conclusion of contract.