Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-100
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX240-100 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 SAIJ80BX240-100
The AirTAC SAIJ80X240-100 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 240 mm stroke that can be dialed back by up to 100 mm, yielding a highly flexible 140-240 mm usable travel window for precise end-position tuning during commissioning.
This model utilizes a PT tapered port thread and includes variable air cushions at both ends to manage deceleration. The rear adjuster acts purely as a mechanical stop to set the travel limit and does not lock the load without live air pressure. For load-holding requirements without continuous air, an external rod lock or related SAIL pneumatic lock cylinder is required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-100 |
|---|---|
| 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 SAIJ80BX240-100
| 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 SAIJ80BX240-100 Is Used
Variable Product Changeover
Dial in the 140-240 mm retract distance instantly when switching between product sizes on a packaging line, avoiding mechanical rebuilds.
Machine Setup Calibration
Fine-tune the end-of-stroke position during initial commissioning to achieve perfect alignment without adding external stopper blocks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-100 the Right Cylinder?
If your setup needs less force, stepping down to a 63 mm bore provides 1559 N, while moving up to a 100 mm bore yields 3927 N. The 100 mm adjustment range is ideal for machinery processing varying product sizes, allowing you to shift the retract end-stop on the fly without swapping cylinders or adding external stops.
To replace an ISO 15552 cylinder, match the 80 mm bore, 240 mm stroke, 100 mm adjustment, PT port thread, and the required mounting set (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Because the 240 mm stroke is substantial, the 25 mm rod and M20x1.5 rod thread provide rigidity, but an external guide should be used to prevent excessive side-loading on long unsupported travels. Note that this SKU does not include a magnet; if position sensing is needed, select the -S option for CMSE reed or 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 SAIJ80BX240-100 FAQ
The rear adjuster allows you to shorten the effective stroke by up to 100 mm, creating a usable travel window of 140-240 mm. It functions as a mechanical stop to fine-tune the retract position and works alongside the standard air cushions for deceleration.
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf of push force.
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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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