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UNITED GRINDING Group Products
United Grinding Group Management AG
Centreless grinding machines

MIKROSA KRONOS M 400

MIKROSA KRONOS M 400 Centerless external cylindrical grinding machines - Flexible and individual.

Can be perfectly adapted to any grinding task, thanks to its modular design with 6 (optionally 7) CNC axes. The machine can be equipped with an overhung grinding spindle (M 250) or a portal-mounted grinding spindle (M 400). The high-precision grinding spindles mounted on roller bearings or hydrodynamic bearings achieve grinding wheel peripheral speeds of 63 m/s as standard, with optional CBN technology of 120 m/s. In combination with the CBN high-speed technology the cycle time of the machine is thus significantly reduced and the cost effectiveness considerably increased.

• 3-slide system
• Patented arrangement of swivel-type and upper slide on one guide system for high system rigidity
• NC functionality for simple and reducible generation of the hyperbolic profile of the regulating wheel
• Modular dressing system for stationary and rotating dressing tools
• MIKROSA software with special operator interface for centerless grinding. Optional additional software modules such as HEUREEKA for optimising the grinding zone geometry
• Special solution: Special machine for grinding tapered rollers
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MIKROSA KRONOS dual
MIKROSA KRONOS dual
Centreless grinding machine
United Grinding Group Management AG
Centreless grinding machines
MIKROSA KRONOS dual
MIKROSA KRONOS dual spitzenlose Außenrundschleifmaschinen - Between centers and centerless.

Offers a combination of centerless grinding and grinding between centers. In this way the workpiece center is preserved and workpieces which must retain a reference to the centring after centerless grinding can also be machined. The machine concept of the KRONOS dual is based on the proven KRONOS L 660 with all of its advantages and characteristics. Thanks to the innovative extension of grinding between centers a perfect, cost-effective solution has been found.
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MIKROSA KRONOS L 550
MIKROSA KRONOS L 550
Centreless grinding machine
United Grinding Group Management AG
Centreless grinding machines
MIKROSA KRONOS L 550
MIKROSA KRONOS L 550 Centerless external cylindrical grinding machines - Strong for medium-sized workpieces.

Strong, dynamic and flexible are typical attributes of this machine, which was developed especially for machining large workpieces. It features a host of technical improvements such as optimised coolant return, an inner lining inside the full housing to encapsulate the work area and optional hydrodynamic grinding and regulating spindles (L 660). The infeed of both slides is enabled by servo drive, via a pretensioned and backlash-free recirculating ball screw. Exact positioning of the infeed axes is ensured by linear measuring systems installed as standard.

• Granitan®S103 mineral casting machine base
• 2-slide system
• Grinding and regulating wheel width up to 660 mm
• Modular dressing system for stationary and rotating dressing tools, optionally also with acoustic touch sensor
• Standardised interfaces for loader and peripheral devices
Product details Homepage Product request
MIKROSA KRONOS L 660
MIKROSA KRONOS L 660
Centreless grinding machine
United Grinding Group Management AG
Centreless grinding machines
MIKROSA KRONOS L 660
MIKROSA KRONOS L 660 Centerless external cylindrical grinding machines - Strong and dynamic
Strong, dynamic and flexible are typical attributes of this machine, which was developed especially for machining large workpieces. It features a host of technical improvements such as optimised coolant return, an inner lining inside the full housing to encapsulate the work area and optional hydrodynamic grinding and regulating spindles (L 660). The infeed of both slides is enabled by servo drive, via a pretensioned and backlash-free recirculating ball screw. Exact positioning of the infeed axes is ensured by linear measuring systems installed as standard.

• Granitan®S103 mineral casting machine base
• 2-slide system
• Grinding and regulating wheel width up to 660 mm
• Modular dressing system for stationary and rotating dressing tools, optionally also with acoustic touch sensor
• Standardised interfaces for loader and peripheral devices
Product details Homepage Product request
MIKROSA KRONOS M 250
MIKROSA KRONOS M 250
Centreless grinding machine
United Grinding Group Management AG
Centreless grinding machines
MIKROSA KRONOS M 250
MIKROSA KRONOS M 250 spitzenlose Außenrundschleifmaschinen - Modular and flexible.

Can be perfectly adapted to any grinding task, thanks to its modular design with 6 (optionally 7) CNC axes. The machine can be equipped with an overhung grinding spindle (M 250) or a portal-mounted grinding spindle (M 400). The high-precision grinding spindles mounted on roller bearings or hydrodynamic bearings achieve grinding wheel peripheral speeds of 63 m/s as standard, with optional CBN technology of 120 m/s. In combination with the CBN high-speed technology the cycle time of the machine is thus significantly reduced and the cost effectiveness considerably increased.

• 3-slide system
• Patented arrangement of swivel-type and upper slide on one guide system for high system rigidity
• NC functionality for simple and reducible generation of the hyperbolic profile of the regulating wheel
• Modular dressing system for stationary and rotating dressing tools
• MIKROSA software with special operator interface for centerless grinding. Optional additional software modules such as HEUREEKA for optimising the grinding zone geometry
• Special solution: Special machine for grinding tapered rollers
Product details Homepage Product request
MIKROSA KRONOS S 125
MIKROSA KRONOS S 125
Centreless grinding machine
United Grinding Group Management AG
Centreless grinding machines
MIKROSA KRONOS S 125
MIKROSA KRONOS S 125 centerless external cylindrical grinding machines - High-precision and cost-effective.

Offers maximum precision for small workpieces. Special features include mass production, synchronization of workpieces or grinding wheel offset. The cross-slide systems for the grinding and regulating wheel side enable huge flexibility during grinding. The KRONOS S is specifically designed for the use of corundum and CBN grinding technology.

• Compact design with integrated control cabinet
• Granitan® S103 mineral casting machine base
• Cross slide system on grinding and regulating wheel side
• Infeed and throughfeed grinding
• 15°/ 6° angled infeed grinding
• Infeed grinding in mass production
• Oscillation grinding
• Grinding of several operations in one cycle by offsetting the workpiece or grinding spindle
Product details Homepage Product request
MIKROSA KRONOS S 250
MIKROSA KRONOS S 250
Centreless grinding machine
United Grinding Group Management AG
Centreless grinding machines
MIKROSA KRONOS S 250
MIKROSA KRONOS S 250 centerless external cylindrical grinding machines - High-precision and cost-effective.

Offers maximum precision for small workpieces. Special features include mass production, synchronization of workpieces or grinding wheel offset. The cross-slide systems for the grinding and regulating wheel side enable huge flexibility during grinding. The KRONOS S is specifically designed for the use of corundum and CBN grinding technology.

• Compact design with integrated control cabinet
• Granitan® S103 mineral casting machine base
• Cross slide system on grinding and regulating wheel side
• Infeed and throughfeed grinding
• 15°/ 6° angled infeed grinding
• Infeed grinding in mass production
• Oscillation grinding
• Grinding of several operations in one cycle by offsetting the workpiece or grinding spindle
Product details Homepage Product request