
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X75-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 75mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
Fine-trim duty is the brief here: a 10 mm window on 75 mm of travel gives the MAJ25X75-10S tight control over where the rod parks on extend, set with an external stop screw once the machine is timed. Double-acting construction keeps the return powered too. It runs on 40 um filtered air between 0.15-1.0 MPa (22-145 psi) and 30-800 mm/s. Expect 245.3 N forward and 206.1 N back at 0.5 MPa supply.
The barrel is drawn stainless tube rolled tight against aluminium end covers, a riveted round body that stays slim in cramped fixtures, while the 10 mm rod is hard-chrome plated for wear resistance. For sizing, budget near 147 N of dependable force at 0.5 MPa, which balances a part of about 12 kg in a vertical lift with margin to spare. Bumper pads are fitted at both stroke ends, and the built-in magnet pairs with CMSG, DMSG or EMSG switches out of the box.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X75-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 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. |
| ×75 | 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.
Fill-nozzle height adjustment on a small bottling carousel, pinned to the last 65-75 mm of descent for consistent fill levels.
Adhesive bench station that seats a part against a glue bead on an assembly jig, trimmed once per changeover.
A chute flap on a small-parts sorting rack that swings parcels between two bins, with a DMSG switch reading each end position.
One bore down, the 20 mm MAJ pushes 157 N; one up, the 32 mm reaches 402.2 N, so 245.3 N at 0.5 MPa lands this model mid-pack for clamps and kickers. The -10 trim is a mechanical stop that sets the extend limit only - it will not carry a suspended load if air pressure drops. Choose FA or LB mounting, add an I or Y knuckle for linkages, and keep side loads off the rod at this 75 mm reach.
Quick checklist
Here are the key outputs: 245.3 N push and 206.1 N pull at 0.5 MPa, climbing to 343.4 N and 288.5 N respectively at 0.7 MPa, with 50 kgf as the 1.0 MPa theoretical limit. The rod measures 10 mm with an M10x1.25 thread, the port size is 1/8", and pressure runs 0.15-1.0 MPa (22-145 psi).
The stainless barrel, hard-chrome rod and aluminium covers resist mild corrosion and damp far better than painted steel minis, though it is not a certified food-grade or IP-rated unit - confirm sealing needs from the datasheet before chemical spray or submersion.
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