The compact structure of ADVU series cylinder can save the mounting space effectively; Bore size ranges from φ12mm to φ100mm; The internal part of the cylinder barrel would be treated with hard anodizing after finish machining, which forms an excellent abrasion resistance and better durability; The magnet switch could be installed directly inside of the slots around the cylinder barrel, with no need of other mounting accessories, which can also protect the magnet switch from damage.