Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X280-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X280-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 280mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke280 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 MAJ25X280-75S
Need a long reach that ends exactly where the machine does? The MAJ25X280-75S runs a 280 mm extend stroke that the external stop screw can cut back to 205 mm, anywhere in the ordered 75 mm window. Double-acting by design, it carries a magnet as standard equipment, so CMSG, DMSG or EMSG switches drop straight on.
Bore 25 output: 245.3 N forward and 206.1 N back at 0.5 MPa, peaking at a theoretical 50 kgf. Sized with margin, that is roughly 147 N of continuous work or a 12 kg vertical lift. Fixed anti-impact pads quiet the stroke ends - they decelerate only, unlike the adjustable air cushion you would find on the MACJ variant.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X280-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X280-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 280 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 MAJ25X280-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×280 | Stroke length in mm. |
| -75 | 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 MAJ25X280-75S Is Used
Sliding machine guard
Drives a 280 mm sliding guard or light shutter on a packaging machine; the stainless barrel tolerates daily wipe-downs in damp production halls.
Case diverter
Swings or pushes cases between conveyor branches; trim the extend stroke with the 75 mm stop screw after the lane geometry is proven.
Lab lift stage
Raises a small test fixture of about 12 kg vertically inside its 2:1 margin; the factory-fitted magnet feeds a CMSG switch for top-of-stroke detection.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X280-75S the Right Cylinder?
For this class the choice runs from the bore 20 unit (157.0 N at 0.5 MPa) up to the bore 32 (402.2 N); 25 mm is the middle ground when your load sits near 100-150 N. Remember the adjuster shortens the extend stroke only and does not lock position against air loss - pair it with a check or locking valve if the load must stay put. FA flange and LB foot mounts are standard options, with I and Y knuckles for pivoting rod ends. Over 280 mm of travel, keep side loads off the 10 mm rod and guide the load in external bearings.
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 MAJ25X280-75S FAQ
Expect 245.3 N push and 206.1 N pull at 0.5 MPa, or 343.4 N push at 0.7 MPa, with a theoretical ceiling of 50 kgf at 1.0 MPa. Air supply runs 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), and the speed range is 30-800 mm/s.
Yes - every MA-series cylinder ships with a built-in magnet as standard, so CMSG, DMSG and EMSG reed or Hall switches mount directly on the stainless barrel without ordering a special piston. Mounting choices are FA flange or LB foot.
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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