Fluidic cylinder

A fluid pressure cylinder comprising:

• a cylindrical cylinder tube including an internal cylinder chamber;
• a pair of cover members attached to both ends of the cylinder tube;
• a piston provided in a displaceable manner along the cylinder chamber;
• and
• a piston rod coupled to the piston,
• wherein each of the piston and the cylinder tube is formed to have a rectangular shape in cross section;
• the piston includes a wear ring configured to slide on an inner wall surface of the cylinder tube in an axial direction of the cylinder tube;
• a magnet hole in the wear ring, the magnet hole extending to an end surface of the wear ring in the axial direction of the cylinder tube;
• and
• a magnet provided in the magnet hole of the wear ring, wherein with respect to the rectangular circumference of the wear ring, the magnet is provided only in one corner of the rectangular circumference.