Airtac MKJ Adjustable Cylinder MKJ25X40-30

The MKJ25X40-30 is a compact AirTAC multi-mount cylinder that fixes from six directions - front, back, left, right, top and bottom - so units can be mounted side by side to save space on dense machine panels. Magnetic-switch slots surround the body, guide precision is high without added lubrication, and the cushion is a bumper for end-of-stroke damping. In double-acting service the 25 mm bore gives a theoretical push force of 245.4 N at 0.5 MPa, with the 30 mm adjustable range added on top of the 40 mm base stroke.

This is a genuine AirTAC part in the MK family, where a no-rotating plate, brass bushing and fixed rod stop the piston rod from turning, unlike the standard MD family. The code carries no S suffix, so this SKU is supplied without a magnet; magnet versions are available if you need position sensing. Medium is air filtered to 40 um, proof pressure is 1.5 MPa (215 psi), and the temperature range is -20 to 70 C, extendable to 0-150 C only with the optional high-temperature seal material. Confirm exact dimensions and bore-specific material details from the datasheet on request.

Select the 25 mm bore when your task needs the bore's 245.4 N theoretical push at 0.5 MPa on the push side. This MKJ model prevents rod rotation with a no-rotating plate; choose MD instead if your application tolerates rotation. Double-acting operation gives 30-500 mm/s at 0.15-1.0 MPa, and the J format adds a 10/20/30 mm adjustable range - here 30 mm on top of 40 mm. Strokes for this bore in double-acting service run up to 60 mm, and the short covers caution against over-long strokes; route any side-load question to us for a datasheet answer. This SKU has no magnet; add an S suffix for sensing, and choose G thread if you prefer it to the PT default.