Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 250mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke250 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 MAJ25X250-75S
A 250 mm reach that trims to 175 mm on site - the MAJ25X250-75S is AirTAC's round-body mini cylinder with an external stop screw that shortens the extend stroke anywhere inside the ordered 75 mm window. It is double-acting, so air drives the rod out and pulls it back, and the built-in magnet comes standard for CMSG, DMSG and EMSG switches.
At 0.5 MPa the bore 25 barrel pushes 245.3 N and pulls 206.1 N; plan on roughly 147 N of usable work at that pressure. That is enough to lift about 12 kg vertically with a 2:1 margin. The stainless barrel and 20 um hard-chrome rod shrug off washdown and damp air, a real edge over painted-steel minis in food plants and outdoor machines.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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 MAJ25X250-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | 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 MAJ25X250-75S Is Used
Carton reject pusher
Knocks misaligned cartons off a conveyor lane at mid-line speed; trim the extend stroke to match the lane once it is set, working with about 147 N of the 245 N rating.
Oven door helper
Opens and closes a light bakery oven or machine-guard door; the stainless barrel and chrome rod cope with steam and washdown better than a painted mini.
Small-part elevator
Lifts jigs or parts of roughly 12 kg vertically within its 2:1 margin; mount on an LB foot under the load and let the built-in magnet signal top of lift.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-75S the Right Cylinder?
Against the numbers: the bore 20 version delivers 157.0 N at 0.5 MPa and the bore 32 jumps to 402.2 N, so stay at 25 mm when your load sits between about 90 and 150 N. The stop screw is a mechanical end stop for the extend stroke only - it will not hold a load mid-stroke if air is lost, so add a separate valve or lock for that duty. Mount it on an FA flange or LB foot, and use I or Y rod knuckles where a pin joint suits the linkage. A 250 mm stroke means modest side loads bend the 10 mm rod; guide the payload externally on long travels. Supply air at 0.15-1.0 MPa (22-145 psi) and run at 30-800 mm/s.
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 MAJ25X250-75S FAQ
At 0.5 MPa this bore 25 cylinder pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push rises to 343.4 N. Theoretical maximum at 1.0 MPa is 50 kgf. The extend stroke can be trimmed anywhere in the ordered 75 mm window with the external stop screw, from 250 mm down to 175 mm.
Turn the stop screw at the head to shorten the extend stroke from 250 mm down to 175 mm. It is a mechanical end stop, not a mid-stroke lock - if air pressure drops the piston will drift, so use a locking valve where position must persist. Fixed anti-impact bumpers soften both stroke ends; for adjustable air cushioning see the MACJ family.
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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