SMC ZK2A Vacuum Unit, Single Unit Type Vacuum Generator, ZK2A12K5PLA 08 Stroke_1311^80mm Specification item model symbol Specification Specification item model symbol Specification information With auto switch D Without auto switch Built in magnet cylinder installation support B Basic type tube inner diameter 80 Tube inner diameter 80mm cylinder stroke 160 Cylinder stroke 160mm with bellows no bellows dual stroke mark No dual stroke mark cylinder stroke 2 Cylinder stroke 2 None With bellows 2 no bellows auto switch Without auto switch Auto switch additional symbol 2 with or without Custom made specifications XC35 With coil scraper Series only blade angle 22 °