Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X90-30S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X90-30S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 90mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke90 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 MAJ25X90-30S
Double-acting on both strokes, the MAJ25X90-30S carries a 30 mm extend-trim window: an external stop screw lets you shorten the 90 mm stroke on the machine without swapping cylinders. At 0.5 MPa the 25 mm bore pushes 245.3 N and pulls 206.1 N, rising to 343.4 N at 0.7 MPa - plan on about 147 N of that rating for real work once friction and pressure dips are counted.
The stainless round barrel and hard-chromed 10 mm rod shrug off washdown and damp shops better than painted minis, and the riveted covers keep the envelope tight. Every unit ships magnet-equipped, so CMSG, DMSG or EMSG switches clip straight on. Run it anywhere from 0.15 to 1.0 MPa (22-145 psi) at 30-800 mm/s; the fixed bumper pads soften stroke-end knocks but are not an adjustable cushion - that job belongs to the MACJ family.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X90-30S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X90-30S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 90 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 MAJ25X90-30S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×90 | 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 MAJ25X90-30S Is Used
Reject gate on a beverage line
A 245 N push at 0.5 MPa nudges dented cans off a conveyor, and the 30 mm trim window lets the gate be tuned to lane width on the spot.
Index stop on a rotary dial table
The stop screw sets a precise dwell position for fixture plates; the magnet and a CMSG switch confirm the pin is seated each cycle.
Snap-lid press on a dairy cup filler
Roughly 147 N of usable force presses snap-on lids without crushing cups, and the stainless barrel copes with daily hose-down.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X90-30S the Right Cylinder?
If 245.3 N at 0.5 MPa is more than the task needs, the 20 mm MAJ gives 157.0 N; if you are marginal, step up to the 32 mm bore for 402.2 N. The 30 mm window suits dial plates and escapements where the stroke must be set after install. Note the stop screw is a mechanical end stop only - if air drops out the piston is free to move, so it will not park a load. FA flange or LB foot mounting, plus I and Y rod knuckles; as an adjustable variant there is no SDB option. The built-in magnet pairs with CMSG / DMSG / EMSG switches for end-of-stroke signals.
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 MAJ25X90-30S FAQ
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. Theoretical maximum at 1.0 MPa is 50 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed runs 30-800 mm/s.
The rolled stainless barrel plus a hard-chrome plated 20 um rod resist corrosion in wet, food or outdoor frames where painted minis rust early. The riveted round body stays compact, and the built-in magnet is standard, so CMSG / DMSG / EMSG switches mount without a special-order piston.
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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