Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-30S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-30S 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 MAJ25X450-30S
Need a stroke set on the shop floor rather than at the drawing board? The MAJ25X450-30S accepts up to 30 mm of on-site shortening of its extend stroke through the external stop screw, no disassembly required. Force class: 245.3 N push and 206.1 N pull at 0.5 MPa, so size continuous duty near 147 N and save the 50 kgf peak for brief hits.
Its stainless round barrel shrugs off splashes and washdown mist where painted mini cylinders blister, and the two-way piston seal stores its own grease for long service intervals. Air range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof, temperature -20 to +70 C, speed 30-800 mm/s. The 450 mm stroke is built to order; standard bore 25 production stops at 300 mm.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-30S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-30S |
|---|---|
| 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 MAJ25X450-30S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -30 | 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 MAJ25X450-30S Is Used
Case ejection from a carton erector
A 30 mm trim absorbs magazine tolerance; 245 N at 0.5 MPa kicks formed cases onto the takeaway belt without mushrooming blank edges.
Tray step lift in a cleanroom indexer
Lifts about 12 kg vertically with a 2:1 margin against the 25 kg force equivalent, and the stainless barrel tolerates repeated IPA wipe-downs.
Spool tensioner arm on a wire winding frame
Set the arm stop anywhere within 30 mm to match spool diameters; roughly 147 N of practical push keeps tension arms seated all shift.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X450-30S the Right Cylinder?
Compare before you commit: bore 20 returns 157.0 N at 0.5 MPa, this bore 25 gives 245.3 N push and 206.1 N pull, and bore 32 lifts the game to 402.2 N. With 450 mm of travel, side load and rod bending are the real risks - guide the payload and keep thrust aligned with the axis. Mount on an FA flange or LB foot, add I or Y rod knuckles where the load pivots, and use the standard magnet with CMSG / DMSG / EMSG switches for feedback. The stop screw trims the extend end only and will not hold a load if air is lost.
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 MAJ25X450-30S FAQ
Push at 0.5 MPa is 245.3 N and pull is 206.1 N; raise the supply to 0.7 MPa and those become 343.4 N and 288.5 N. The theoretical maximum at 1.0 MPa is 50 kgf. Ports are 1/8 inch, the 10 mm rod thread is M10x1.25, and the extend stroke can be set up to 30 mm shorter than ordered.
FA flange and LB foot are the catalog mounting options, plus I and Y rod knuckles when the load articulates; the adjustable version carries no SDB bracket or back-cover code. Both covers take 1/8 inch air ports, the rod ends in an M10x1.25 male thread, and every unit leaves the factory with the position-sensing magnet already installed.
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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