Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-50S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-50S 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 MAJ25X250-50S
One cylinder standing in for several fixed stroke lengths is what the wide 50 mm window buys: the MAJ25X250-50S is double acting, and its external stop screw sets extend travel anywhere from 200 mm up to the full 250 mm. The 25 mm bore develops 245.3 N forward and 206.1 N back at 0.5 MPa (72 psi), or 343.4 N forward at 0.7 MPa (101 psi), at speeds of 30 to 800 mm/s.
Construction is a rolled, riveted round body - stainless barrel, hard-chrome plated carbon-steel rod, aluminium covers - that stays compact and tolerates corrosion where coated minis fail. For vertical work, 245.3 N equals about 25 kg of lift at 0.5 MPa; keeping real part weights near 12 kg preserves a 2:1 margin. The magnet ships standard in every MA piston, so CMSG / DMSG / EMSG switches simply clip to the barrel.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-50S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-50S |
|---|---|
| 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 MAJ25X250-50S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -50 | 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 MAJ25X250-50S Is Used
Tote lid lift
Raising hinged lids on totes at a packing bench: roughly 12 kg of vertical margin at 0.5 MPa suits lightweight lids, and the 50 mm window sets the open height between 200 and 250 mm per tote size.
Glue head feed
Feeding a hot-glue nozzle toward carton seams on a case former; the stop screw locks in the approach distance so each carton size gets a repeatable bead.
Bin push-off
Sweeping picked bins off a static shelf onto a takeaway belt - 245.3 N at 0.5 MPa slides empty plastic bins cleanly across the shelf lip.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X250-50S the Right Cylinder?
Downsize to MAJ20 where 157.0 N at 0.5 MPa is plenty, or move up to MAJ32 at 402.2 N for stiffer work - this 25 mm bore covers the band between. The stop screw never lengthens travel beyond 250 mm and cannot hold position when air fails, so fit an external mechanical stop where that matters. FA flange and LB foot mounting plus I / Y rod knuckles suit most frames, and the 1/8" ports with M10x1.25 rod thread are the bore-25 standard. On a long 250 mm stroke, keep side loads off the 10 mm rod by guiding the load.
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 MAJ25X250-50S FAQ
At 0.5 MPa (72 psi) it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa (101 psi), 343.4 N push and 288.5 N pull; theoretical peak is 50 kgf at 1.0 MPa. Extend stroke trims from 250 mm down to 200 mm using the external screw. Runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um, proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, -20 to +70 C.
The MAJ barrel is precision stainless steel with the aluminium covers rolled and riveted onto it, and the 10 mm carbon-steel rod is hard-chrome plated to about 20 um. That combination tolerates washdown splash, condensation and outdoor exposure that blister painted bodies, and the rolled joint keeps the package slim and sealed.
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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