Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-40S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX325-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 325mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke325 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-40S
The AirTAC SAIJ80X325-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down by 40 mm, creating a usable 285-325 mm stroke window. The extruded aluminum barrel provides sensor grooves on both sides for flexible switch mounting.
This adjustable-stroke design eliminates the need to swap cylinders or add external stops during commissioning or product changeovers. The rear adjuster acts purely as a mechanical stop to set the end position; it does not lock or hold the load without live air pressure. For applications requiring true load-holding without continuous air supply, consider the AirTAC SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 325 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×325 | 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 SAIJ80BX325-40S Is Used
Product Changeovers
Dial in the 285-325 mm travel window during line changeovers to accommodate different package sizes without physically swapping the actuator.
Commissioning Calibration
Fine-tune the retract end-position during initial machine setup, using the rear stopper to hit exact mechanical targets without external shims.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-40S the Right Cylinder?
Choose this 80 mm bore when your application requires high thrust (4523 N at 0.9 MPa) combined with precise end-position tuning. If your setup needs less force, stepping down to a 63 mm bore yields 2805 N, while moving up to a 100 mm bore provides 7068 N. The PT tapered port (G3/8) and M20x1.5 rod thread are standard for this bore size.
The 40 mm adjustment range is ideal for machine setups requiring variable end-stops or product-size changeovers on a line. Because the 325 mm stroke is relatively long, the 25 mm rod diameter should still be paired with an external guide to prevent excessive side-loading on the piston. This cylinder is dimensionally interchangeable per ISO 15552 and supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The integrated magnet works seamlessly with AirTAC CMSE reed 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 SAIJ80BX325-40S FAQ
The rear adjuster acts as a mechanical stop that allows you to shorten the nominal 325 mm stroke by up to 40 mm, providing an adjustable travel window of 285 to 325 mm. It only sets the end position and does not hold the load without live air pressure.
The operating speed ranges from 30 to 800 mm/s, supported by variable air cushions at both ends.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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