Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75S 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 SAIJ80AX225-75S
The AirTAC SAIJ80X225-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 2513N of push force at 0.5 MPa and features a 225mm nominal stroke that can be dialed back by up to 75mm, creating a precise 150-225mm usable travel window for product changeovers.
This variant includes a built-in magnet for position sensing with CMSE reed or DMSE electronic switches. It uses an SUS420J2 stainless steel rod for corrosion resistance and PT tapered ports. The rear screw acts as a travel stop for end-position tuning, not a load lock; for dead-air holding, use a SAIL or BSAI cylinder.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75S |
|---|---|
| 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 SAIJ80AX225-75S
| 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 SAIJ80AX225-75S Is Used
Variable End-Stop Setup
Dial in the exact retract position within the 150-225mm window during machine commissioning without physically changing the cylinder.
Product Size Changeover
Quickly adapt a packaging line to different carton depths by turning the rear adjuster screw up to 75mm instead of retooling.
Sensor-Driven Positioning
Leverage the integrated magnet with DMSE solid-state sensors to confirm the adjusted end positions in automated assembly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75S the Right Cylinder?
Choose this 80mm bore when a 50mm bore (982N push at 0.5MPa) lacks thrust but a 100mm bore (3927N) is excessive. The 75mm adjustment range is ideal for machines running mixed product lengths, letting you fine-tune the retract end without swapping cylinders or adding external stops. Since the 225mm stroke exceeds 300mm? No, but long strokes still benefit from an external guide to prevent rod side-load wear.
To match this ISO 15552 dimensionally interchangeable cylinder, specify: 80mm bore, 225mm stroke, 75mm adjust, PT G3/8 port, SUS420J2 rod, and the -S magnet. Mounting options are Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80AX225-75S 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 screw acts as a mechanical stop, allowing you to shorten the 225mm nominal stroke by up to 75mm, resulting in a 150-225mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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