Airtac MKJ Adjustable Cylinder MKJ32X50-20S

The MKJ32X50-20S is an adjustable-stroke, no-rotating multi-mount cylinder with a 32 mm bore and 50 mm base stroke, supplied with a magnet as shown by the S suffix. The compact square body fixes from six directions (front, back, left, right, top and bottom) and mounts side by side to save space, with magnetic-switch slots around the body and high guide precision. As a double-acting cylinder it delivers a theoretical push force of 402.1 N at 0.5 MPa (345.6 N on the pull side), runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), and cushions with a bumper. The 20 mm adjustable range on top of the 50 mm stroke lets you trim the end position in service.

This is a genuine AirTAC part from the MK family, where a fixed rod, plate and brass bushing stop the piston rod from turning - unlike the standard MD family, where rod rotation is allowed. The magnet in this SKU supports position detection in the body's switch slots. Typical materials include an aluminium-alloy body, piston and covers with a stainless or S45C rod and NBR seals, but bore-specific detail should be confirmed from the datasheet. We confirm dimensions and sizing from the datasheet on request.

The 32 mm bore gives the highest thrust in this series - 402.1 N push at 0.5 MPa double acting - so select it where firm clamping or pressing force is needed. Choose MKJ over MD when the rod must not rotate; choose MD when rotation is acceptable. This is a double-acting unit with the magnet (S) fitted, so reed or solid-state switches can be slid into the body's slots for end-position signalling. The 50 mm base stroke sits within the bore 32 table (up to 60 mm), and the adjustable-stroke design adds a 20 mm range on top of it. Keep strokes modest: the covers are compact, so avoid specifying an over-long stroke, and confirm side-load capacity with us. The listed thread is PT; a G thread version is available.