Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X20-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X20-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 20mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke20 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 MAJ25X20-10S
With just 20 mm of travel and a 10 mm stop-screw window, the MAJ25X20-10S is built for eject, clamp and index moves where the extend stroke must land between 10 and 20 mm. The bore 25 double-acting piston delivers 245.3 N push and 206.1 N pull at 0.5 MPa, and fixed anti-impact pads absorb the shock of these fast, tiny cycles.
A riveted stainless-steel barrel with aluminium covers and a 20 um hard-chrome rod resists mild corrosion - a real advantage over painted minis in food-handling or washdown-adjacent cells. The magnet ships inside every MA cylinder as standard; CMSG, DMSG and EMSG switches mount straight on for end-of-stroke sensing. In practice, treat about 147 N as the working push at 0.5 MPa - roughly 12 kg of vertical lift with a 2:1 margin.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X20-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X20-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 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 MAJ25X20-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×20 | 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 MAJ25X20-10S Is Used
Pin ejection
Ejecting finished pins from a CNC fixture takes a 20 mm jab at 245.3 N push, and trimming the stroke within the 10-20 mm range protects delicate part shoulders.
PCB test clamp
A spring-loaded clamp nest on an ICT fixture closes in 10-20 mm; bore 25 pull force of 206.1 N at 0.5 MPa retracts the clamp fast between boards.
Index pawl
A rotary index pawl on a dial-plate assembly machine advances one notch per cycle; the short 20 mm stroke at up to 800 mm/s keeps the takt under control.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X20-10S the Right Cylinder?
Short strokes hide sizing errors: check the MAJ20 (157.0 N push at 0.5 MPa) if you are under 150 N of work, or the MAJ32 (402.2 N) above 200 N. This model's 245.3 N push and 206.1 N pull cover most light eject and clamp duty. The 10 mm stop window trims extend travel only and acts as a hard stop, not a mid-stroke lock, so a held load still settles if pressure drops. FA flange, LB foot, and I or Y rod knuckles all fit; air enters via 1/8" ports at 0.15-1.0 MPa (22-145 psi) with 30-800 mm/s speeds.
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 MAJ25X20-10S FAQ
Push is 245.3 N at 0.5 MPa and 343.4 N at 0.7 MPa; pull is 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa; theoretical peak 50 kgf at 1.0 MPa. Stroke runs 10-20 mm via the stop screw. Ports 1/8", rod 10 mm with M10x1.25 male thread, 0.15-1.0 MPa (22-145 psi), 30-800 mm/s.
The barrel is stainless steel, the rod carries 20 um of hard chrome, and the covers are aluminium alloy rolled into the body - a combination that resists mild corrosion far better than painted steel minis. For direct food-contact zones or aggressive chemical washdown, confirm compatibility from datasheet.
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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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