Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-30S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-30S 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.
- BoreØ25 mm
- Stroke150 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM10×1.25
- CushionFixed anti-impact bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-30S
Fixture builders who retune stations between product runs get a 30 mm tuning range on this 25 mm MAJ: the external stop screw pulls the extend stroke anywhere from 120 up to the full 150 mm. Push force is 245.3 N at 0.5 MPa and 343.4 N at 0.7 MPa, ample for light clamping and eject duties.
Unlike painted-steel minis, the rolled stainless barrel and hard-chrome plated rod shrug off coolant mist and occasional washdown, which suits machining cells and food-adjacent conveyors. Every unit carries a built-in magnet for CMSG, DMSG or EMSG switches. As a working figure, size the task to roughly 147 N at 0.5 MPa - about 60 percent of the rated push - for long seal life.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-30S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-30S |
|---|---|
| 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.
Theoretical Output Force (Ø25mm)
| 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.
Model Code: Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-30S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -30 | 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.
Where the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-30S Is Used
Fixture clamp on a CNC drilling jig
Clamps aluminum housings against a drill jig; 343.4 N at 0.7 MPa holds parts steady, and the stainless barrel tolerates cutting-fluid splash.
Infeed lane divider on a snack line
Stops and releases product lanes on a conveyor infeed, with the 30 mm window matching different pack heights without changing hardware.
Eject pin drive on a small injection mold
Pushes finished connector bodies out of a shallow mold cavity, with the CMSG switch on the standard magnet signaling the eject position.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-30S the Right Cylinder?
For lighter duties the 20 mm bore (157 N at 0.5 MPa) may suffice; if the fixture needs firmer clamping, the 32 mm MAJ at 402.2 N is the step up. Keep in mind the stop screw sets an extend end position only - it is not a mid-stroke lock, so an unsupported load can settle when air is removed.
Mount via FA flange or LB foot; the I and Y rod knuckles cover pivoting links, and adjustable models carry no SDB option. Speed span is 30-800 mm/s. With 150 mm of travel on a 10 mm rod, brace any side thrust externally so the rod bearings stay loaded axially.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X150-30S FAQ
Expect 245.3 N forward and 206.1 N backward at 0.5 MPa; at 0.7 MPa the figures become 343.4 N and 288.5 N, and the theoretical ceiling is 50 kgf at 1.0 MPa. Ports are 1/8 in regardless of mount, the rod thread is M10x1.25, and the extend stroke trims within a 30 mm window.
The barrel is high-precision stainless steel rolled onto aluminium-alloy covers, and the 10 mm piston rod carries a 20 um hard-chrome plating. Together they resist the rust and paint flaking that plague painted mini cylinders near coolants or outdoors. Operating range is -20 to +70 C with air filtered to 40 um at 0.15-1.0 MPa (22-145 psi).
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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