Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX240-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 240mm 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
- Stroke240 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 SAIJ80BX240-30S
The AirTAC SAIJ80X240-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 240 mm stroke that can be fine-tuned down by up to 30 mm, creating a precise 210-240 mm usable travel window.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions, while the rear screw acts purely as an end-position stop, not a load lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 240 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 SAIJ80BX240-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×240 | 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 SAIJ80BX240-30S Is Used
Product Changeover
Dial in the 210-240 mm stroke window during format changes on packaging lines without swapping hardware.
End-Stop Calibration
Fine-tune the exact retract position during machine commissioning to perfect tooling alignment.
Variable Diverting
Adjust the diverting stroke on the fly to accommodate different package sizes moving down the line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-30S the Right Cylinder?
The adjustable 210-240 mm window is ideal for machine setups requiring variable end-stops during product changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder. To match this ISO 15552 interchangeable cylinder exactly, specify the 80 mm bore, 240 mm stroke, 30 mm adjustment, PT tapered ports, and the -S magnet.
Because the stroke is 240 mm, ensure adequate external guiding to prevent excessive side-loading on the SUS304 rod. Remember that the rear adjuster only sets the travel end; it cannot hold a load without live air, so consider an SAIL lock or BSAI clamp-lock for static holding.
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 SAIJ80BX240-30S FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw lets you shorten the 240 mm nominal stroke by up to 30 mm, providing a usable travel window of 210-240 mm. The adjuster acts as a mechanical stop and does not lock the load without air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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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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