Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-30S 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 SAIJ80AX225-30S
The AirTAC SAIJ80X225-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. It features a SUS420J2 stainless steel rod and a built-in magnet for position sensing. The integrated rear stopper allows you to fine-tune the effective travel window anywhere between 195 and 225 mm without swapping hardware.
This 80mm bore pneumatic actuator uses a G3/8 port and includes variable air cushions at both ends to manage kinetic energy. The adjuster acts purely as a mechanical stop to set the retract end position and does not hold the load without live air pressure. For load-holding requirements without continuous air, consider an external rod lock or the AirTAC SAIL series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-30S |
|---|---|
| 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 SAIJ80AX225-30S
| 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 SAIJ80AX225-30S Is Used
Product Changeover
Dial in the 195-225mm travel window during format changes on a packaging line, using the rear screw to set new retract positions rapidly without changing the cylinder.
End-Position Tuning
Trim up to 30mm of stroke during machine commissioning to perfect the alignment of a heavy press tool without adding external mechanical stops.
Variable Stops Assembly
Handle multiple part sizes on a single conveyor station by adjusting the cylinder's retract end-stop on the fly to accommodate varying material widths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-30S the Right Cylinder?
Choose this 80mm bore cylinder when an application requires substantial thrust, stepping up from the 50mm bore which provides 982N of push force at 0.5 MPa. The 30mm adjustment range is ideal for machine setups requiring variable end-stops during product changeovers, providing flexibility that a fixed-stroke SAI cylinder cannot offer. To match this ISO 15552 footprint exactly, specify the 225mm stroke, 30mm adjustment, PT tapered port threads, and the -S magnet option.
Because the 225mm stroke exceeds 300mm is false here, side-load concerns are moderate, but the 25mm rod diameter handles standard lateral forces well. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. The -S magnet works seamlessly with AirTAC CMSE reed switches and DMSE electronic sensors.
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 SAIJ80AX225-30S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 225mm stroke by up to 30mm, creating a usable travel window of 195-225mm. It sets the end position but does not lock the load without live air pressure.
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