Airtac SAIJ80 Adjustable Cylinder SAIJ80BX250-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX250-100S 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 SAIJ80BX250-100S
The AirTAC SAIJ80X250-100-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection mounting.
This specific configuration incorporates a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads with a G3/8 connection. The integrated magnet supports AirTAC CMSE reed and DMSE electronic solid-state sensors. The rear adjuster screw acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX250-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX250-100S |
|---|---|
| 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 SAIJ80BX250-100S
| 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 SAIJ80BX250-100S Is Used
Variable End-Stop Tuning
Dial in the exact 150-250mm travel window during machine setup to fine-tune end positions without machining new hard stops.
Product Size Changeover
Quickly adapt automated lines to different product lengths by turning the rear adjuster screw on the fly during product transitions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX250-100S the Right Cylinder?
The 100mm adjustment range is ideal for product changeovers on a production line, functioning as a variable end-stop without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, pair this cylinder with an external rod lock or select an AirTAC SAIL or BSAI model instead.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 250mm stroke is significant, the 25mm rod diameter and M20x1.5 rod thread handle substantial loads, but an external guide is recommended for long unsupported strokes to prevent side-loading damage.
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 SAIJ80BX250-100S FAQ
The rear adjuster screw acts as an external stop that lets you shorten the effective stroke from the 250mm nominal down to a minimum of 150mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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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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