Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX125-100S 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 SAIJ80BX125-100S
The AirTAC SAIJ80X125-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 125 mm stroke by up to 100 mm. This yields a highly flexible 25-125 mm usable travel window, making it exceptionally useful for machines that process multiple product sizes.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a magnetic piston (-S) that works seamlessly with AirTAC CMSE reed and DMSE electronic sensors via the dual-side sensor grooves. The PT tapered ports ensure a tight, reliable pneumatic seal during high-speed operations.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-100S |
|---|---|
| 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 SAIJ80BX125-100S
| 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 SAIJ80BX125-100S Is Used
Variable Product Changeover
Dial in the 25-125 mm travel window during line changeovers to accommodate different package lengths without replacing the cylinder.
End-Position Tuning
Fine-tune the exact retract position at machine commissioning to perfect a pressing or clamping operation without adding external stops.
Adjustable Diverter Stroke
Modify the diverter arm reach on a conveyor system to handle varying box widths on the fly, ensuring precise routing.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-100S the Right Cylinder?
Choose this SAIJ80X125-100-S variant when your application requires frequent end-position tuning or variable product lengths without swapping out the physical cylinder. The generous 100 mm adjustment window is ideal for mixed-product manufacturing lines. If you need less adjustability, a smaller adjust code like -50 simplifies setup. For higher force requirements, stepping up to the 100 mm bore yields 3927 N at 0.5 MPa, while dropping to the 63 mm bore provides 1559 N.
As a double-acting cylinder, the rear adjuster acts strictly as a mechanical stop to set the travel end and does not hold the load without live air pressure. For true fail-safe load holding, consider the AirTAC SAIL or BSAI series instead. This model is dimensionally interchangeable per ISO 15552 and uses the reduced SAIJ mounting set: 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 SAIJ80BX125-100S FAQ
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke from 125 mm down to as little as 25 mm. This provides a 25-125 mm usable travel window for fine-tuning the end position at commissioning or during product changeovers.
At 0.9 MPa, the push force increases to 4523 N.
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