Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 450mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke450 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 MAJ25X450-75S
Long travel in a slim round body defines the MAJ25X450-75S: a 450 mm made-to-order stroke whose extend end can be shortened by up to 75 mm with an external stop screw. Even at this reach the 25 mm bore holds 245.3 N of push at 0.5 MPa, enough for roughly 147 N of useful work after reserving headroom.
A 10 mm hard-chrome steel rod slides inside a stainless barrel riveted to aluminium covers, so mild washdown and outdoor damp cause no paint to flake or rust to bloom. Anti-impact pads fixed at both stroke ends tame arrival shock, and the standard-built magnet accepts CMSG, DMSG and EMSG switches anywhere along the tube.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 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 MAJ25X450-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×450 | 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 MAJ25X450-75S Is Used
Sensor gantry lift
Lifts about 12 kg sensor gantries on an electronics test line; tune the top-of-travel stop anywhere within the 75 mm window.
Laboratory sampler arm
Drives a dip sampler into a 450 mm deep vessel, where the slim round body fits machine frames a bulkier build cannot.
Sluice gate nudge
Cracks open a small water-treatment sluice gate; stainless surfaces tolerate the humid, splashed valve pit year round.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-75S the Right Cylinder?
Compare forces first: the 20 mm bore offers 157.0 N push at 0.5 MPa and the 32 mm bore 402.2 N, placing this 25 mm unit mid-pack. A 450 mm stroke on a 10 mm rod demands careful alignment - add external guides for any side load and anchor with the FA flange or LB foot, flexing the rod joint with an I or Y knuckle where the linkage pivots. Remember the adjuster is a position stop, not a holding brake: on air loss the load moves. Plumbing is 1/8"; the male rod thread is M10x1.25.
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 MAJ25X450-75S FAQ
Push is 245.3 N at 0.5 MPa and 343.4 N at 0.7 MPa; pull is 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa. Theoretical maximum reaches 50.0 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof rating.
Anchor the body with an FA flange or LB foot and pick an I or Y rod knuckle for pivoting linkages; no SDB twin-rod option exists on the adjustable version. Every piston carries a magnet as standard, so CMSG, DMSG or EMSG switches sense extend and retract positions 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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