MERAK CL250

MERAK CL250

Modular, flexible and precise for small workpieces 

This centerless external cylindrical grinding machine is an all-rounder in technological applications and ensures maximum precision. Perfectly prepared for an integrated handling system, it offers a highly productive complete unit for a wide range of manufacturing solutions. Whether it is centerless grinding of the front face or lateral surface, infeed grinding or throughfeed grinding, the MERAK CL250 is designed for a wide range of applications.

Highlights

  • High precision & excellent stiffness
  • Machine bed made of mineral casting
  • Fixed grinding gap 
  • Oscillating infeed grinding
  • Four-sided cooling system for dressing tools
  • Hohe High peripheral speed (up to 150 m/s)
  • Serviceability
  • Intuitive operation 

Machine equipment

Wide range of options for customised machine design

Enclosure

Innovative Modulbauweise für maximale Wartungsfreundlichkeit

Large segments of the fixed deck can be easily moved for servicing

No dismantling of the installation required

Cross-slide system


Modular design that can be easily adapted to customer-specific requirements

4 CNC axes equipped with length measuring system for precise positioning and movement

Machine variant with B1 axis to improve suitability for throughfeed grinding and for correction of taper error

The cross-slide design enables a wide range of technologies as well as dressing with several dressing tools in one operation

Grinding and regulating spindle

For maximum precision and reliability

High rigidity of the grinding spindle due to the spindle bearing (hybrid rolling bearing) and the backlash-free mounting of the grinding wheel adapter 

High rigidity of regulating spindle due to extra-large spindle bearings without belt drive 

Dressing Unit

Dressing process individually designable

Excellent cooling of the dressing tools through an innovative four-side cooling system 

Different types of stationary & rotating dressing tools 

Quick and precise swiveling of the dressing unit in the angles possible (-3°) / 0°/ (+3°) 

Identical dressing spindle for grinding and regula-ting wheel 

Control panel


KEBA operating panel with Siemens Sinumerik ONE 

A 24’’ touch colour display for convenient operating with plenty of space to display settings

Equipped with force sensors that react via acoustic and haptic signals

SmartWheel – you can easily move axes, control the feed rate, and select many other settings with one turn

Operation via the NeXiS user interface developed by WMT Leipzig

Technical data

Workpiece Ø min. 1,5 | max. 35 mm
Grindable workpiece length (infeed grinding)max. 245 mm
Grinding wheel Ø x width x bore450 mm x 250 mm x 203.2 mm
Regulating wheel Ø x width x bore270 mm x 250 mm x 127 mm
Grinding wheel speed (Corundum | CBN)max. 80 m/s | max. 150 m/s
Workpiece Ø
min. 1,5 | max. 35 mm
Schleifbare Werkstücklänge
(Einstechschleifen)
max. 245 mm
Schleifscheibe
Ø × Breite × Bohrung
450 mm x 250 mm x 203.2 mm
Regelscheibe
Ø × Breite × Bohrung
270 mm x 250 mm x 127 mm
Schleifscheibenumfangsgeschwindigkeit (Korund | CBN)
max. 80 m/s | max. 150 m/s

Applications:

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