Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX125-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 125mm 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
- Stroke125 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 SAIJ80BX125-30S
The AirTAC SAIJ80X125-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 125 mm travel by up to 30 mm. This creates a precise 95-125 mm usable stroke window, allowing exact end-position tuning at commissioning without swapping hardware.
This SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the standard PT (tapered) G3/8 port ensures reliable airflow. The rear adjuster acts purely as a travel stop to set deceleration, not as a lock, so live air is required to hold the load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAIJ80BX125-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SAIJ80BX125-30S Is Used
Machine Changeover
Quickly fine-tune the 95-125 mm travel window during product size changeovers, setting exact end-stops without replacing the cylinder or adding external stops.
Diversion Gates
Actuate sorting mechanisms on conveyor lines where the required stroke varies slightly by package size, utilizing the integrated -S magnet for position confirmation.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-30S the Right Cylinder?
The adjustable 95-125 mm window is ideal for product-size changeovers on a line, providing variable end-stops without adding external mechanical stops. To replace an ISO 15552 cylinder, match the 80 mm bore, 125 mm stroke, PT G3/8 port, and the -S magnet requirement.
Because the stroke is 125 mm, side-load stress is minimal, but always ensure the M20x1.5 rod thread is aligned with your load coupling. If your application requires true load-holding without continuous air pressure, a standard SAIJ will not suffice; you should pivot to an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80BX125-30S FAQ
At the maximum 1.0 MPa pressure, it achieves 513 kgf.
The rear adjuster acts as a mechanical stop that trims the effective travel back from the 125 mm nominal stroke, providing a 95-125 mm usable window. It sets the travel end and deceleration point but does not lock the load without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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