Airtac SAIJ80 Adjustable Cylinder SAIJ80X125-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X125-100S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X125-100S
The AirTAC SAIJ80X125-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a highly variable usable travel window of 25 to 125 mm. Built with a carbon steel piston rod and a PT tapered port thread, it delivers a robust 2268 N pull force at 0.5 MPa. The integrated -S magnet enables direct position sensing with AirTAC CMSE reed or DMSE electronic solid-state switches.
Because the rear adjuster acts purely as a mechanical stop, it allows precise end-position tuning during commissioning or product changeover without swapping the cylinder. The extruded aluminum barrel features sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments, deliberately omitting FB, CA, CB, and CR options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X125-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X125-100S |
|---|---|
| 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 | 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 SAIJ80X125-100S
| 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 SAIJ80X125-100S Is Used
Machine Changeover
Dial in the exact end-stop for different product lengths on a single production line without physically replacing the actuator or adding external stopper blocks.
Commissioning Calibration
Fine-tune the final 25 to 125 mm travel window during initial setup to perfectly time the 2513 N push force against varying material resistances.
Variable Assembly Stops
Adjust the retract position on the fly for multi-model assembly stations, relying on the DMSE electronic sensors to confirm the newly set end-point.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X125-100S the Right Cylinder?
Choose this 80 mm bore when an application requires substantial force, such as the 2513 N push available at 0.5 MPa, but demands significant flexibility in the final end-of-stroke position. The 100 mm adjustment range is excellent for machinery that processes varying product sizes on a single line. If less force is needed, stepping down to a 63 mm bore yields 1402 N pull at 0.5 MPa, whereas larger loads up to 3681 N pull would require a 100 mm bore.
Remember that the rear adjuster and the variable air cushions only decelerate the load; they do not function as a lock. For fail-safe load holding without live air pressure, select the SAIL pneumatic lock series, the BSAI clamp-lock, or utilize an external pilot-operated check valve. This SAIJ model is dimensionally interchangeable per ISO 15552 and includes a magnet for sensors.
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 SAIJ80X125-100S FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective stroke from 125 mm down to as little as 25 mm. This provides a 100 mm tuning window for precise end-position control without altering the cylinder mounting.
At a standard 0.5 MPa operating pressure, the SAIJ80X125-100-S generates 2513 N of push force and 2268 N of pull force. It operates at speeds between 30 and 800 mm/s.
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