
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 150mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
For lines where the stop point gets tuned after commissioning, the MAJ25X150-75S pairs a 25 mm bore with a generous 75 mm trimming window on its extend stroke - set it once with the external screw and the 150 mm nominal travel matches your fixture. Push force at 0.5 MPa is 245.3 N; budget roughly 147 N for the real job. The adjuster is an end stop, not a mid-stroke lock, so a gravity load still creeps if pressure is lost. Air supply spans 0.15-1.0 MPa (22-145 psi) and speeds run 30-800 mm/s.
The riveted round body keeps the envelope compact, while the stainless tube and hard-chrome plated carbon-steel rod shrug off the washdown and damp that shorten the life of painted minis. Magnets are standard equipment, so CMSG, DMSG or EMSG switches mount without special ordering.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed anti-impact bumper pads |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -75 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Trim the extend stroke to clamp MDF or thin stock on a router jig without crushing, backed by about 147 N of steady working force.
A push whose stop is set to the lane offset steers plastic totes between pick lanes on a warehouse conveyor.
Applies a settable preload to specimens on a small leak or fatigue test rig, with the stop re-set per batch.
Downsize to the MAJ20 (157 N at 0.5 MPa) when the load is light; step up to the MAJ32 (402.2 N) when clamping forces climb past 250 N. At 245.3 N this 25 mm bore covers the middle ground with margin to spare. Treat the adjuster as an extend-stroke end stop and nothing more - it holds no position mid-stroke.
The 75 mm window suits product families that change size between batches: set 120 mm for one part, 80 mm for the next, without swapping cylinders. FA flange and LB foot mountings plus I and Y rod knuckles cover most fixturing. Long 150 mm travel and side loads do not mix, so keep the tooling guided so the 10 mm rod sees only axial force.
Quick checklist
Push is 245.3 N at 0.5 MPa and 343.4 N at 0.7 MPa; pull is 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa, topping out at a theoretical 50 kgf at 1.0 MPa. The 25 mm bore carries a 10 mm rod, 1/8" ports and an M10x1.25 male rod thread.
The barrel is stainless steel and the carbon-steel rod carries a 20 um hard-chrome plate, so mild corrosion, splash and outdoor exposure are handled far better than by painted-steel minis. The aluminium alloy covers are riveted to the tube, sealing the round body.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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