Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X500-50S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X500-50S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 500mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke500 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 MAJ25X500-50S
A long-travel, double-acting round-body mini cylinder: the external stop screw on MAJ25X500-50S lets you shorten the 500 mm extend stroke by up to 50 mm without changing hardware. At 0.5 MPa the 25 mm bore pushes 245.3 N, so with margin applied you can put about 147 N of that rating to work.
The 500 mm travel is a made-to-order length for this bore, since the standard catalogue stops at 300 mm. A stainless barrel with a hard-chrome plated rod shrugs off washdown and damp plant air far better than painted minis, and the fixed anti-impact pad eases the piston at stroke end - it decelerates only, there is no adjustable air cushion here (that is the MAC family).
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X500-50S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X500-50S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 500 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 MAJ25X500-50S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×500 | 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 MAJ25X500-50S Is Used
Long pusher on tray conveyors
Slides bakery trays across a 500 mm transfer gap with 245.3 N of push, the final 50 mm of approach trimmed on the machine.
Vertical lift at pick stations
Raises tote lids or small bins vertically with about 12.5 kg held in reserve - 245.3 N equals 25 kg of lift, halved for a 2:1 margin.
Sliding guard on a CNC washer
Opens a machine guard door through coolant mist, where the stainless barrel outlasts painted mini bodies.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X500-50S the Right Cylinder?
Size check: bore 20 delivers 157.0 N and bore 32 reaches 402.2 N at 0.5 MPa - step down for light slides, up if 245.3 N feels thin. On a 500 mm stroke keep side load off the rod; external guidance or the LB foot mounting keeps bending stress out of the 10 mm rod. The stop screw is a mechanical end stop, not a mid-stroke lock: with air lost the rod still drifts, so do not count on it to park a load. The magnet is built in, so CMSG / DMSG / EMSG switches mount straight on. Air quality: 40 um filtration, 0.15-1.0 MPa (22-145 psi), speed 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 MAJ25X500-50S FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa those become 343.4 N push and 288.5 N pull, with 50 kgf theoretical maximum at 1.0 MPa. The bore is 25 mm with a 10 mm rod, 1/8" ports and M10x1.25 male rod thread, and the extend stroke trims up to 50 mm via the stop screw. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
Yes - the S in the code just confirms it: every MAJ ships with a magnet fitted, so CMSG, DMSG or EMSG reed switches clip on without a special-order piston. The anti-impact bumper pads are fixed, and the riveted round body keeps the install footprint tight.
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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