Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-40S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 225mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke225 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 MAJ25X225-40S
With the stop collar set anywhere inside the 40 mm window, this MAJ lets one cylinder serve several fixture depths without swapping parts. It is a double-acting round-body mini cylinder: air drives the rod out and pulls it back, and an external stop screw trims the extend stroke on site. At the bore 25 rating the rod delivers 245.3 N forward at 0.5 MPa and 343.4 N at 0.7 MPa, across a 0.15-1.0 MPa (22-145 psi) working band at 30-800 mm/s.
The stainless barrel with its hard-chrome 10 mm rod stands up to washdown and damp shop air far better than painted minis, and the riveted aluminium covers keep the envelope slim. A magnet is built into the piston as standard, so CMSG, DMSG or EMSG switches snap on for end-of-stroke signalling. In practice plan on roughly 147 N of real work at 0.5 MPa, enough to lift about 12 kg vertically with a 2:1 margin. The fixed bumper pads soften stroke-end impact only; they are not an adjustable air cushion.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-40S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 225 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 MAJ25X225-40S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -40 | 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 MAJ25X225-40S Is Used
Capping-line dial index
Advances a bottle platform 225 mm into the capping head; the 40 mm trim absorbs fixture height changes across bottle formats.
Carton gate lift assist
Raises roughly 12 kg gate panels on a case packer, staying inside the 147 N working margin at 0.5 MPa.
Tray pusher on washdown line
Kicks trays sideways between lanes; the stainless barrel shrugs off the daily hose-down between production runs.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-40S the Right Cylinder?
If 245 N at 0.5 MPa is more than the job needs, the bore 20 MAJ gives about 157 N and the bore 32 lifts to 402 N at the same pressure, so size on real load, not price. The 225 mm rod is long for a 25 mm bore, so keep side loads off the rod and guide the tooling externally to protect the chrome surface. The stop screw sets end of travel but does not lock the piston when air is lost; fit a blocking valve if the load must stay put. Mount with the FA flange or LB foot, and the I or Y rod knuckle absorbs small misalignment; the built-in magnet pairs with CMSG or DMSG switches at no extra option cost.
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 MAJ25X225-40S FAQ
Bore 25, double-acting: 245.3 N push and 206.1 N pull at 0.5 MPa, rising to 343.4 N push at 0.7 MPa, with a theoretical 50 kgf maximum at 1.0 MPa. Ports are 1/8", rod thread M10x1.25, rod 10 mm. Working pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, and the extend stroke trims within the 40 mm window.
No. Every MAJ ships with the magnet already fitted as standard, so CMSG, DMSG or EMSG sensors mount directly on the barrel for end-of-stroke detection straight out of the box.
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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