Centerless grinding machine model R125 for the processing of bars with through-feed working method
The Cinetic Giustina grinder model R125 is a centerless grinder with fixed center equipped with:
Grinding wheel D = 610 mm, with dynamic balancing device
Control wheel D = 355 mm, tilt angle up to 8°
NC of all main functions
Laser automatic post-process gauge for the 100% measuring of ground parts, with machine feedback for automatic compensation of wheel wear.
The Cinetic Giustina grinder model R125 is the ideal machine for the through-feed grinding of bars with various diameters from 2 to 300 mm. The process with fixed center and its rigidity, together with the automatic post-process gauge allow a very high precision and an incomparable productivity. Its guarding, completely sealed, can guarantee a better and easier fumes suction, no leakage and higher safety during the process, together with a lower noise level.
Process description
Loading/Unloading
Loading and unloading of bars on this machine is made by a through-feed mode through a motorized rolls guiding system.
Laser post-process gauge, complete with blow station, allows 100% of parts measuring, thus compensating wheel wear simultaneously.
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Process
In centerless grinders the workpiece is processed by a grinding wheel, kept in the proper position while rotating by a control wheel and supported by a workrest blade.
The working method with fixed centre allows to maintain workpiece axis constant throughout grinding wheel life. This feature makes the part loading and unloading easier, thus allowing also the connection of more machines in one line. |
Machine Composition
Machine features:
High resistance cast iron
Grinding and control wheelheads, supported by sliding carriages driven by brushless motors – preloaded ballscrews
Automatic clamping of control wheel slide through hydraulic cylinders.
Grinding and control wheel spindles with double support. The spindles can be completely pulled out for a quicker grinding/control wheel change.
Automatic wheels dresser, sliding on prismatic guides and driven by brushless motors – preloaded ballscrews.
Grinding wheel motor with maximum power of 90 kW
Both wheels have a constant speed, independently from their wear.
Grinding wheel dynamic balancing device, with automatic stock search and wheels radius acquisition.
Siemens 840D Numerical Control (FANUC as alternative), for machine functions control.
For further information please view the commercial sheet.