Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-30S 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 SAIJ80X225-30S
The AirTAC SAIJ80X225-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end position during commissioning. It provides a usable travel window of 195 to 225 mm, giving you 30 mm of flexibility to dial in the retract stroke without adding external stops. Belonging to the 80 mm bore class, it delivers substantial thrust, pushing 4523 N at 0.9 MPa and pulling 2268 N at 0.5 MPa.
This -S variant includes a magnet for position sensing and works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches housed in the dual sensor grooves on the extruded aluminum barrel. It features a robust 25 mm carbon steel rod and a PT tapered G3/8 port, while the rear adjuster acts purely as a mechanical stop for deceleration and positioning rather than a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-30S |
|---|---|
| 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 SAIJ80X225-30S
| 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 SAIJ80X225-30S Is Used
Product Changeover
Dial in the 195-225 mm travel window during production line changeovers to accommodate different part lengths without replacing the cylinder.
Commissioning Calibration
Fine-tune the retract end position during machine setup to hit exact mechanical stops, eliminating the need for external spacers.
Adjustable Ejection
Control the ejection stroke distance on an assembly line to safely push varying product sizes into downstream packaging.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-30S the Right Cylinder?
Choose this 80 mm bore model when your application requires high pulling force (2268 N at 0.5 MPa) alongside precise end-position tuning. If you need less force, stepping down to a 63 mm bore offers 1402 N pull at 0.5 MPa, whereas moving up to a 100 mm bore provides 3681 N pull at 0.5 MPa. You would select this SAIJ adjustable version over a fixed-stroke SAI cylinder specifically to accommodate product changeovers or to fine-tune machine setups without physically swapping out the actuator.
Because this is a 225 mm stroke, it is below the threshold where external guides are mandatory for side-load management, though the 25 mm rod inherently handles standard bending stresses well. Remember that the rear adjuster only sets the travel end; if you need to hold a load securely without live air pressure, you must use an external rod lock or switch to an AirTAC SAIL or BSAI cylinder. To match this ISO 15552 cylinder exactly, specify an 80 mm bore, 225 mm stroke, 30 mm adjustment, PT G3/8 port, and the -S magnet 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 SAIJ80X225-30S FAQ
The nominal stroke is 225 mm, but the rear adjusting screw allows you to trim the effective travel back by up to 30 mm. This creates a usable travel window of 195 to 225 mm, which can be fine-tuned at commissioning without changing the cylinder or adding external stops.
At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N. The rear adjuster acts as a travel stop and does not hold the load without live air pressure.
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