Kellenberger Kel-Varia UR225-1500 1-2-6-7 cylindrical grinding machine
Kirchheim
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- Transfer of prepayment to the card
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Seller's contacts
+49 7021 ...
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+49 7021 71799
+49 7021 9...
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+49 7021 978711
Germany 
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
Germany, Kirchheim
- T1: grinding wheel diameter 500 mm
- T2: grinding wheel diameter 400 mm
- T6: HF Fischer spindle MFV or MFZ 1224/1242/1260
- T7: HF Fischer spindle MFV or MFZ 1224/1242/1260
- Marposs tool measurement
- active longitudinal positioning
- Elaso GAP-control on T1 and T2
contactless integrated in the control surface
- Elaso GAP internal grinding with fluid sensor for T6 and T7
- semi-automatic balancing by Elaso
integrated in the control surface for T1/T2
- tailstock hydraulic with fine adjustment +/- 150 microns
- dresser on workpiece spindle side table mounted
- dresser on tailstock side table mounted
- dresser on upper table
- new service- and userfriendly housing
SPECIAL EQUPEMENT:
Workhead with direct drive
- strongly recommended for
non-circular grinding
- workpiece weight flying max. 75kg
- workpiece weight between centres 150kg
- water-cooled
B-axis with direct drive
- center height 225 mm
- extremely torsionally stiff
- highly accurate positioning
- resolution 0.000001341°
- water-cooled
Hydrostatic ball screw - x-axis
- wear-free, as there is no contact during operation
- no loss of precision, even during long-term use at full load and
maximum speed
- no friction at low speeds
- no friction force backlash when the direction of rotation changes
- translates even the smallest rotational movements
- no stick-slip effect even at low speeds
- no fluctuations in frictional torque due to ball circulation
- higher axial stiffness compared to ball screws
- significant improvement in damping, resulting in better workpiece surface
finish and tool life
- no oscillations due to ball circulation
- also suitable for high speeds and accelerations
- cost-effective alternative to the linear motor with greater precision and
significantly lower heat generation
- significantly less power dissipation and, as a result, no problems with swarf
on permanent magnets
New hydraulic unit
- optimized temperature control (chiller)
- Energy-saving
Only one pump controlled by VFD
- Pressure monitoring
- monitoring of the hydrostatic oil for
water content.
(Damage to the bellows is recognised and detected prematurely)
-fine adjustment +/- 150 microns
Paper belt filter
375l alternative 480l
Grinding mist extraction system emulsion
MECHANICAL OVERHAUL
-complete machine according to Kellenberger protocoll
-new painting
ELECTRICAL OVERHAUL
- new modern Fagor CNC with BEMA HMI
- new electric cabinet
- new digital drive technology
- replacement of all electrical cables, switches etc.
- new absolute external scales in x- and z-axis
- new absolute encoder (B-axis)
Grinding software BEMA-Standard:
- workpiece zeroing
- grinding wheel zeroing
- dressing diamond measuring
- corrections
- external and internal surface grinding
- external and internal angle grinding
(turning of the b-axis, dressing with straight wheel)
- external and internal radius grinding (radius dressed on wheel)
- semi-automatic traverse grinding
- workpiece zeroing
- 2 dressing diamonds
- 1 dressing blade
- dressing roll
- 3 flat dresser
- corrections
- Z-position measurement
- GAP control
Optional grinding cycles at no extra charge:
Profile plunge grinding:
- external and internal profile plunge grinding with profile wheel
Profile grinding:
- external and internal profile grinding with straight wheel
Software thread grinding:
- single- and multiple-start external and internal thread.
Grinding with thread dressed on the wheel
Dressing of single and multi-groove disc
Flank angle freely selectable.
Trapezoidal thread grinding:
- Additional dressing of trapezoidal threads possible.
Non-round grinding:
- external and internal non-circular plunge-cut grinding
- external and internal non-circular oscillating grinding
Type of control: CNC
Control: FAGOR
Storage location: 73230 Kirchheim
Country of origin: Switzerland
Delivery time: upon request
Freight basis: EXW
grinding diameter: 450 mm
grinding length: 1500 mm
centre height: 225 mm