Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X400-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X400-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 400mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke400 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 MAJ25X400-10S
Fine trims are the point of the 10 mm window on the MAJ25X400-10S: once the extend stroke is dialed to your fixture, the external stop screw holds that setting with 245.3 N of push at 0.5 MPa behind it. This is a double-acting round-body mini cylinder - stainless barrel, aluminium covers, hard-chrome 10 mm rod - with fixed bumper pads absorbing stroke-end shock.
Because 400 mm exceeds the 300 mm standard stroke of a 25 mm bore, the cylinder is built to order, yet the magnet remains standard equipment for CMSG, DMSG or EMSG switch mounting. Supply it 0.15-1.0 MPa (22-145 psi) and it runs 30-800 mm/s; at 0.7 MPa push climbs to 343.4 N.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X400-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X400-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 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 MAJ25X400-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -10 | 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 MAJ25X400-10S Is Used
Bottle-capper depth set
A beverage line sets capper depth once per bottle format; the 10 mm window gives fine-tune resolution on a 400 mm body.
Solder-jig lid clamp
Electronics assembly closes solder jigs with the 206.1 N pull-force return, the stop screw fixing exact lid compression.
Web guide trim
A film converting machine nudges web position by up to 10 mm per correction cycle, with fast 30-800 mm/s response included.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X400-10S the Right Cylinder?
Compare the force ladder before you commit: MAJ20 delivers 157 N push at 0.5 MPa, MAJ32 delivers 402.2 N - this 25 mm bore's 245.3 N sits between them for medium clamps and lifts. Treat 147 N as the working figure at 0.5 MPa, enough to raise roughly 12 kg vertically with a 2:1 margin. The stop screw sets an extend end position only; it is not a mid-stroke lock, so a dropped air line lets the piston drift. Mount on an FA flange or LB foot, add I or Y knuckles on the rod, and guide any side load externally across the long 400 mm stroke. Should the job later need adjustable cushioning or a through-rod, the MACJ and MAD variants share this MA platform.
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 MAJ25X400-10S FAQ
At 0.5 MPa push is 245.3 N and pull 206.1 N; at 0.7 MPa these become 343.4 N push and 288.5 N pull; the theoretical maximum is 50 kgf at 1.0 MPa. The stop screw trims the extend stroke by up to 10 mm from the 400 mm order length, and since the 25 mm bore standard stroke stops at 300 mm, this long version is made to order. Ports are 1/8", rod thread M10x1.25, rod 10 mm.
The barrel is stainless steel rolled onto aluminium-alloy covers, and the 10 mm carbon-steel rod carries a 20 um hard-chrome plate - together they shrug off the washdown and humidity that blister painted mini cylinders, a real advantage in food and outdoor cells.
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.
Request a Quote for Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X400-10S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.