Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X40-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X40-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 40mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke40 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 MAJ25X40-10S
A compact double-acting round-body cylinder with a trimmable extend stroke: turn the external stop screw on the MAJ25X40-10S and the 40 mm stroke shrinks by up to 10 mm, no shims or new cylinder needed. At 0.5 MPa it delivers 245.3 N push and 206.1 N pull; at 0.7 MPa that climbs to 343.4 N. The riveted stainless barrel and hard-chrome plated rod shrug off the splash and humidity that eat painted mini cylinders, a real edge in food benches and outdoor cells.
Set your real task force near 147 N, not the full 245.3 N rating, and the bore will hold up across the 0.15-1.0 MPa (22-145 psi) supply band. Every MA-series piston carries its magnet as standard, so CMSG, DMSG or EMSG switches clip on straight from the box, and the fixed bumper pads soften each end of travel even at 800 mm/s.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X40-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X40-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 40 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 MAJ25X40-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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.
Where the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X40-10S Is Used
Bottle-line reject gate
Mounted beside a filling conveyor, the 25 mm bore kicks misfilled 330 ml bottles into a reject chute; the 10 mm trim lets a tech match the kick length to the chute position without swapping cylinders.
Drill-jig swing clamp
Clamps steel brackets in a welding fixture with 30-40 mm of travel, so soft aluminium parts are held firmly but never crushed.
Tray push-off with position check
Pushes blister trays off an infeed rail while a CMSG switch wired to the PLC confirms the rod reached full extension each cycle.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X40-10S the Right Cylinder?
Against its neighbours: a bore 20 MA pushes 157 N at 0.5 MPa while a bore 32 MAJ reaches 402 N, so this 25 mm unit sits squarely in the mid-load band for clamping and ejecting. The adjuster is a mechanical end stop for the extend direction only - on air loss the rod still drifts, so park loads with a valve or an external stop instead. FA flange or LB foot mounting plus I and Y rod knuckles cover most fixture layouts; 1/8" ports, a 10 mm rod and an M10x1.25 rod thread complete the spec.
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 MAJ25X40-10S FAQ
At 0.5 MPa the MAJ25X40-10S pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push rises to 343.4 N, with a theoretical maximum of 50.0 kgf at 1.0 MPa. Air ports are 1/8", the rod is 10 mm with an M10x1.25 male thread, and the extend stroke trims from 40 mm down to 30 mm via the stop screw.
No - the magnet is built into every MA-series piston as standard, so AirTAC CMSG, DMSG or EMSG switches mount on the barrel for end-of-stroke signalling with no 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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