AirTAC MAJ Series Adjustable Mini Cylinders

The MAJ is AirTAC's standard round-body mini cylinder with one extra trick: the extend stroke is adjustable. An external stop screw shortens the extend stroke on site within the ordered window, so one cylinder can be tuned to the exact reach your fixture needs without changing the ordered stroke length. It is a double-acting cylinder with a fixed bumper pad at each end; the stop trims the stroke but never lengthens it past the ordered value.

The barrel is high-precision stainless steel with an aluminium-alloy front and back cover riveted and rolled onto it, forming a sealed rolling-packed body. The carbon-steel piston rod carries a 20 um hard-chrome plating, and the piston's two-way seal also stores grease, so lubrication is not required. Bores run from 16 mm to 40 mm (16, 20, 25, 32, 40 mm) on 6-16 mm rods, with push force from roughly 100 N up to 628 N at 0.5 MPa (up to about 128 kgf at 1.0 MPa on the 40 mm bore). Ports are M5x0.8 on the 16 mm bore and 1/8 inch on 20-40 mm. Every MAJ ships with a magnet built in as standard, so CMSG, DMSG or EMSG switches can be added for end-of-stroke sensing. This is a round-body series - it is not a tie-rod or extruded-profile cylinder and the catalogue assigns it no ISO 6432 or JIS designation, so specify it by AirTAC code.

Ordering code MAJ{bore}X{stroke}-{adjust}[S][mount][thread]: -adjust is the adjustable extend-stroke window, S is the standard built-in magnet, and the port thread can be PT, G or NPT. If you do not need on-site stroke adjustment, the MA series is the same bumper cushion with a fixed stroke; the MACJ adds an adjustable cushion to the adjustable stroke, and the MAD gives you a double rod.