Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 225mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke225 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 MAJ25X225-20S
Bore 25 force with a 20 mm stroke-trim window is what the MAJ25X225-20S puts on the table. Air drives the piston both ways; a stop screw on the cover then lets you shorten the extend stroke on site to hit an exact seating or release position. Rated figures are 245.3 N push and 206.1 N pull at 0.5 MPa, rising to 343.4 N push at 0.7 MPa, over a 30-800 mm/s speed range.
Against painted or plain-aluminium minis, the stainless round tube and 20 um hard-chrome rod hold up far better in splash zones and outdoor sheds. Plan on about 147 N - six tenths of the 0.5 MPa rating - as your realistic working force when sizing a mechanism. Fixed anti-impact pads soften both stroke ends, and the built-in magnet (standard, not an option) accepts CMSG / DMSG / EMSG switches.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 225 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 MAJ25X225-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -20 | 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 MAJ25X225-20S Is Used
Press ejection
Knocks finished bushings out of a small press die, with the 20 mm window tuned so parts clear the die but stop short of the chute wall.
Enclosure door latch
Actuates the latch on a CNC enclosure door, the stop screw matching the latch travel so no mechanical shimming is needed.
Roller spur diverter
Tips trailing cartons off a gravity roller spur at the pack bench, sized well above the few-newton rolling effort of a loaded box.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X225-20S the Right Cylinder?
With 245.3 N of push at 0.5 MPa, this cylinder covers jobs the 20 mm bore (157.0 N) undersizes and that do not yet need the 32 mm bore's 402.2 N. The 225 mm travel is long relative to the 10 mm rod, so carry side loads externally rather than through the rod. Remember the trim is a hard stop for extension only: it does not lock the piston mid-stroke, and pressure loss still lets the rod move. Mount with the FA flange or LB foot, add an I or Y knuckle on the rod end, and use the standard magnet with CMSG / DMSG / EMSG switches for travel confirmation.
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 MAJ25X225-20S FAQ
Push 245.3 N and pull 206.1 N at 0.5 MPa; push 343.4 N and pull 288.5 N at 0.7 MPa; 50 kgf theoretical maximum at 1.0 MPa. It is double acting, runs at 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) air, uses 1/8" ports, and carries a 10 mm hard-chrome rod threaded M10x1.25. The extend stroke trims inside the ordered 20 mm window.
The rolled stainless tube resists corrosion and shrugs off washdown in damp or food-adjacent areas where painted steel bodies bubble and flake. Riveted aluminium covers keep the body compact for a 25 mm bore, and the hard-chrome plating protects the rod's sliding surface.
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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