SMC MGP Z Series. Compact Guide Cylinder, With Air cushion, MGPL32 150AZ Vacuum Cup Holder Specification item model symbol Specification Specification item model symbol Specification information built in magnet D built in magnet installation support B Basic type tube inner diameter 12 tube inner diameter 12mm cylinder stroke 40 cylinder stroke 40mm dual stroke mark No dual stroke mark cylinder stroke 2 Cylinder stroke 2 None option CM With rubber cushion no bellows rocking support bracket no metal fittings rod end bracket no metal fittings auto switch Without auto switch Auto switch additional symbol 2 with or without Custom made specifications standard