
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X125-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 125mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
A compact 25 mm bore round-body mini cylinder built for jobs that need a short, precise extend stroke. MAJ25X125-10S is double-acting with an external stop screw that trims the extend stroke anywhere within a 10 mm window on site, so one cylinder can be dialled to the exact dwell position without shims. At 0.5 MPa it pushes 245.3 N and pulls 206.1 N, with 50 kgf of theoretical force at the top of its 0.15-1.0 MPa (22-145 psi) range.
Because the magnet is fitted as standard, CMSG / DMSG / EMSG reed switches clip straight onto the stainless barrel for end-of-stroke signals. The riveted body pairs a stainless tube with a hard-chrome plated 10 mm rod, shrugging off splash and humidity better than painted minis, and the fixed anti-impact bumper pads soften each stroke end - they decelerate, they are not an adjustable air cushion. In practice, plan for roughly 147 N of real work at 0.5 MPa, or vertical lifts of about 12 kg with a 2:1 margin.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X125-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 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. |
| ×125 | Stroke length in mm. |
| -10 | 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.
Pins empty PET bottles ahead of the filler at a set 125 mm reach, trimmed within 10 mm to match varying bottle necks.
Sets the press anvil height on a small connector crimping fixture where the dwell point must move batch to batch.
Tucks the leading flap of a 300 mm wide carton on a sleeve-wrap infeed, with the magnet confirming the tuck is home.
Compare force first: the MAJ20 delivers 157.0 N push at 0.5 MPa and the MAJ32 reaches 402.2 N, so the 25 mm bore sits comfortably in the middle for clamps and slide feeds around 100-150 N. Remember the stop screw is a mechanical end position for extend only - if air is lost the piston can still coast back, so add a separate lock for true holding. Mount with FA flange or LB foot, add an I or Y knuckle on the rod, and order sensors alongside since the magnet is already inside. At 125 mm stroke keep side loads small to protect the 10 mm rod.
Quick checklist
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa the figures rise to 343.4 N push and 288.5 N pull, with a theoretical maximum of 50 kgf at 1.0 MPa. The external stop screw shortens the extend stroke anywhere within the ordered 10 mm window, and rod speed runs 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) of clean, 40 um filtered air.
No. Every MAJ ships with the piston magnet built in as standard, so CMSG, DMSG or EMSG switches mount on the stainless barrel without a special-order piston - useful for confirming the trimmed end position on short-stroke indexing.
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