Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100 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 SAIJ80X225-100
The AirTAC SAIJ80X225-100 is a double-acting, single-rod ISO 15552 profile cylinder featuring an integrated rear stroke adjuster. It provides a nominal 225 mm stroke that can be dialed back by up to 100 mm, creating a highly flexible 125 to 225 mm usable travel window for precise end-position tuning during commissioning. Delivering 2513 N of push force at 0.5 MPa, it handles substantial workloads. The extruded aluminum barrel incorporates sensor grooves on both sides for straightforward position feedback.
This model utilizes a 25 mm carbon steel rod with an M20x1.5 thread, paired with a G3/8 PT tapered port for reliable pneumatic flow. The rear adjuster acts purely as a mechanical stop to set the retract distance and relies on the variable air cushions at both ends to decelerate the load. It does not hold the load without live air pressure. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100 |
|---|---|
| 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 SAIJ80X225-100
| 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 SAIJ80X225-100 Is Used
Machine Changeover
Dial in the 125-225 mm travel window during product size transitions to set new retract positions without physically replacing the cylinder.
Variable End Stops
Use the 100 mm rear adjustment range to fine-tune the final end position during machine setup, compensating for mechanical tolerance stack-up.
Heavy Assembly Pressing
Leverage the 2513 N push force at 0.5 MPa to seat heavy components, using the adjustable stroke to control the exact pressing depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100 the Right Cylinder?
Selecting this 80 mm bore yields 2513 N push and 2268 N pull at 0.5 MPa, offering a robust step up from the 50 mm bore (982 N push) for heavier handling. The 100 mm adjustment range is ideal for product changeovers on a line, allowing you to shift the end-stop without swapping the cylinder or adding external stops. If your process eventually requires true load-holding without live air, consider the SAIL or BSAI series, as this adjuster is a stop, not a lock. For a direct ISO 15552 replacement match, specify bore 80, stroke 225, 100 mm adjust, G3/8 PT ports, and standard carbon steel rod.
With a 225 mm stroke, the 25 mm rod provides good rigidity, but you should still verify the mounting arrangement. The SAIJ series omits the FB, CA, CB, and CR mounts, so verify your ISO 15552 interface uses the supported Basic, FA, LB, TC, FTC, TCM1, or TCM2 styles.
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 SAIJ80X225-100 FAQ
It features a rear mechanical stopper that allows you to shorten the effective stroke by up to 100 mm. This creates a usable travel window of 125 to 225 mm, letting you fine-tune the retract end position at commissioning without swapping the cylinder.
At a 0.5 MPa operating pressure, the SAIJ80X225-100 provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
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