Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10S
The AirTAC SAIJ80X250-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N push force at 0.5MPa, utilizing a PT G3/8 port and a 25mm carbon steel rod. The built-in magnet enables position detection with CMSE reed or DMSE electronic sensors.
With a nominal 250mm stroke and a 10mm adjustment range, this unit provides a fine-tunable 240-250mm travel window. The rear screw stopper allows precise end-position calibration at commissioning without adding external stops. The extruded aluminum barrel features sensor grooves on both sides, and the mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10S |
|---|---|
| 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 | 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 SAIJ80X250-10S
| 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 SAIJ80X250-10S Is Used
Machine Setup Calibration
Fine-tune the 240-250mm travel window during initial machine commissioning to achieve exact positioning without machining custom spacers.
Product Changeover
Quickly adjust the rear stopper by up to 10mm to accommodate slightly different package sizes on a packaging line.
Assembly Pressing
Leverage the 2513N push force at 0.5MPa for pressing operations, using the adjustable stop to prevent over-travel.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X250-10S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than the 50mm bore (982N push at 0.5MPa) but less bulk than the 100mm bore (3927N). The 10mm adjustable window is ideal for dialing in exact end stops during product changeovers. For a fixed end position without the need for commissioning tweaks, a standard SAI cylinder is sufficient.
Because the 250mm stroke is substantial, the 25mm rod and M20x1.5 thread handle significant side loads, but an external guide is still recommended for unsupported loads. The rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. This cylinder is dimensionally interchangeable per ISO 15552.
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 SAIJ80X250-10S FAQ
At 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.9MPa, the push force increases to 4523N.
The rear adjuster screw allows you to shorten the effective stroke by up to 10mm from the nominal 250mm, creating a 240-250mm travel window. It functions as a mechanical stop and does not lock the load without air pressure.
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