Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-20
The AirTAC SAIJ80X225-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position without adding external stops. It provides a usable travel window of 205 to 225 mm, letting you dial back the 225 mm nominal stroke by up to 20 mm during commissioning or product changeover. Delivering a robust 3518N push force at 0.7 MPa, it is built to handle demanding industrial loads.
This model features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and utilizes PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic solid-state sensors. It uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on some standard variants.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-20 Is Used
Machine Changeover
Dial in the 205-225mm travel window during product size transitions to set exact retraction points without replacing hardware.
End-Stop Tuning
Use the rear adjuster to fine-tune the final retraction position during commissioning, eliminating the need for external mechanical stops.
Automated Clamping
Provides a reliable 3518N push force at 0.7 MPa for holding workpieces, while the adjustable stroke accommodates varying part thicknesses.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-20 the Right Cylinder?
Choose this 80mm bore when you need higher thrust than the 63mm version (which provides 2182N at 0.5 MPa), or step down to it from the 100mm bore (5497N at 0.5 MPa) if your application does not require excessive force. The adjustable stroke is ideal for machine setups requiring variable end-stops, allowing precise retraction tuning without swapping out the entire cylinder. The rear adjuster acts purely as a travel stop for deceleration and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series. To match this ISO 15552 replacement exactly, specify an 80mm bore, 225mm stroke, 20mm adjustment, PT G3/8 ports, and your preferred mounting option.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
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 Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-20 FAQ
At an operating pressure of 0.7 MPa, this 80mm bore cylinder provides a push force of 3518N and a pull force of 2268N. It can deliver up to 4523N at 0.9 MPa.
The rear adjuster allows you to shorten the 225mm nominal stroke by up to 20mm, creating a usable travel window of 205 to 225mm. This stopper sets the travel end and aids deceleration, but it does not lock the load without continuous air pressure.
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