Mikrosa Kronos L660 CNC Centerless Grinder Maximum Performance for large workpieces – Year 2016
Workpiece Diameter: 9.84″
Workpiece Length: 25.78″
Grinding Wheel
Max Diameter: 25.98″
Max Width: 25.98″
Bore: 12″
Peripheral Speed: 206’/sec
Drive Power: 80 / 127 HP
Regulating Wheel
Max Diameter: 15.75″
Max Width: 25.98″
Bore: 8″
RPM Range: 5 – 300 RPM
Dressing Speed: 700 RPM
Drive Power: 16 HP
Machine Weight: 41,000 LBS
Equipped With:
Siemens Sinumerik CNC Control
Modular Dressing System
Available Manuals
Mikrosa KRONOS L
Machining of large, heavy workpieces · Highest efficiency · Flexible applications · Cost-effective automation ·
Special software for centerless grinding
Dimension
• Workpiece diameter 5…250 mm
• Max. workpiece diameter for infeed grinding 655 mm
• Grinding wheel Ø 660 x 660 x 304,8 mm /
regulating wheel Ø 400 x 660 x 203,2 mm
Hardware
• Granitan® machine base
• 2-slide system
• Grinding and regulating wheel width up to 660 mm
• Drive power up to 95 kW
• Motorized opening of the grinding wheel guard
• Modular dressing system for stationary and rotating dressing tools,
optionally also with acoustic gap control
Software
• Service-friendly SIEMENS SINUMERIK 840D sl control system
• MIKROSA software with special operator interface for
centerless grinding
• Optional additional software modules such as HEUREEKA for
optimizing the grinding zone geometry
• Standardized interfaces for loader and peripheral devices
The KRONOS L centerless external cylindrical grinding machine is designed
for infeed and throughfeed grinding in the diameter range of 5 to 250 mm
and with a maximum infeed width up to 655 mm. The basis of the machine
is a Granitan® bed, which guarantees the KRONOS L optimum damping
characteristics and excellent thermal stability.
The machine‘s coolant discharge has also been considerably improved, in
order to guarantee optimum chip removal. Depending on the grinding task
the machine can be designed with bearing systems for conventional grinding and CBN high-speed grinding or optionally with hydrodynamic bearings for grinding and regulating wheel side.
The KRONOS L has a fixed grinding zone. This enables easy automation of
the machine – a clear advantage particularly when handling long and heavy
parts.
The machine has a modular dressing system for stationary and rotating
dressing tools. The machine can also be optionally equipped with acoustic
gap control for optimized dressing. An in-house MIKROSA software program for centerless grinding processes is used for dressing the regulating
wheel geometry during infeed and particularly during throughfeed grinding.
This significantly reduces machine setting times and guarantees an exactly
reproducible regulating wheel geometry.
The KRONOS L has a Granitan® machine bed. This material possesses
excellent damping characteristics and high thermal stability. This is a big
advantage when machining workpieces with high quality requirements.
Temporary temperature fluctuations are extensively compensated and a
high tolerance holding capacity can be guaranteed throughout the day.
Also, the machine‘s coolant discharge has been considerably improved, in
order to guarantee optimum chip removal.