Airtac SAIJ80 Adjustable Cylinder SAIJ80BX250-10S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX250-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 250mm 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
- Stroke250 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 SAIJ80BX250-10S
It features a durable SUS304 stainless steel rod and includes a magnet for CMSE and DMSE sensors. The integrated rear stopper allows you to fine-tune the travel end-position, providing a usable window of 240 to 250mm without needing external stops.
This adjustable-stroke design excels during machine commissioning and product changeovers, letting you dial in the exact 10mm trim on the retract end. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Fluid supply must be filtered air at 40um, operating between 0.15 and 1.0MPa.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX250-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX250-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 250 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 SAIJ80BX250-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×250 | 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 SAIJ80BX250-10S Is Used
Precision End-Stop Tuning
Dial in the exact retract position within a 240-250mm window during machine commissioning to achieve perfect alignment without adding external mechanical stops.
Product Size Changeovers
Quickly adjust the stroke by up to 10mm on a packaging line when switching to a different product size, minimizing downtime between production runs.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX250-10S the Right Cylinder?
The adjustable 240-250mm travel window is ideal for setups requiring precise end-stop tuning without swapping cylinders. For load-holding without live air pressure, note that the rear adjuster is a travel stop, not a lock; you should consider an AirTAC SAIL or BSAI cylinder instead.
When replacing an ISO 15552 cylinder, match the 80mm bore, 250mm nominal stroke, 10mm adjustment, PT tapered port, and the -S magnet. Because the 250mm stroke is substantial, the 25mm rod and M20x1.5 thread handle side loads well, but an external guide is still recommended for unsupported lengths. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ80BX250-10S FAQ
At 0.7MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke from the nominal 250mm down to 240mm. It only sets the travel end and does not lock the load without live 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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