SMC type CY3R series magnetic coupling rodless cylinder has pistons, but without piston rod, the piston device is in the guide rail, the external load is connected to the piston, and the piston is driven by the air inlet.
The motion of the magnetic coupling type is realized by using a permanent magnet in the hollow piston rod to drive another magnet outside the piston rod. Because of its fast speed and high load, the inner and outer magnetic rings are easy to be disengaged, so it is less used now. The load quality needs to find the characteristic curve of its mass and speed. Now the mechanical use of more.
Classification of SMC rodless cylinder
SMC rodless cylinder is divided into magnetic pole free cylinder and mechanical contact rodless cylinder. A rodless cylinder is a cylinder that uses a piston directly or in a way to connect the external machinery and make it follow the piston to achieve reciprocating motion. The greatest advantage of this cylinder is to save installation space.
(1) CY3R50-510200300500CY3R series cylinder magnetic coupling rodless cylinder:
The piston drives the moving body outside the cylinder by magnetic force to do synchronous movement. The working principle is that a set of permanent magnetic rings with high strength and magnetism are installed on the piston, and the magnetic field line is acted by another set of magnetic rings on the outer side of the cylinder through the thin wall cylinder, because the two sets of magnetic rings are opposite in magnetism and have strong suction force. When the piston is pushed by the air pressure in the cylinder, the magnetic ring sleeve outside the cylinder is moved together under the action of the magnetic force. The thrust of the cylinder piston must be adapted to the suction of the magnetic ring.
Characteristics of CY3R series magnetic coupling rodless cylinder
1. Compared with the ordinary cylinder, the 1/2 installation can be reduced under the same stroke;
2, no need to set up anti rotating machinery;
3, applicable to the bore of 10-80mm and a maximum stroke can reach 41.5m;
4, speed 10m/s
Disadvantages of SMC type CY3R series magnetic coupling rodless cylinder
1, poor sealing performance, easy to produce external leakage. When using three position valve, the medium pressure type must be selected;
2, the load force is small, in order to increase the load capacity, we must increase the guidance machinery. Examples of rodless cylinder rodless cylinder rodless cylinder: the brand now in circulation is mainly ORIGA rodless cylinder, nuoguan rodless cylinder, FESTO rodless cylinder, SMC rodless cylinder, Koganei, the brand is good. Among them, ORIGA product line is relatively small, is specialized in rodless cylinder, is also the inventor of rodless cylinder, has the patent technology of metal sealing, but the overall visibility is sometimes less than the other several.