Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 115mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke115 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50S
The AirTAC SAIJ100X115-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 65 to 115 mm. Delivering a robust 7068 N push force at 0.9 MPa, it is equipped with a SUS420J2 stainless steel rod for superior corrosion resistance and a PT tapered port thread. A magnetic piston enables position sensing with CMSE reed and DMSE electronic sensors.
This adjustable-stroke design allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops. The rear adjuster acts as a travel stop to set deceleration, but it does not hold the load without live air. It utilizes a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 115 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×115 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX115-50S Is Used
Machine Setup Changeover
Dial in the exact end-position during product changeovers by trimming the stroke up to 50 mm, avoiding the need to swap out the entire cylinder.
Variable End-Stop Positioning
Fine-tune the retract end-position during commissioning to accommodate varying material thicknesses on the production line.
Heavy-Duty Clamping
Leverage the 7068 N push force at 0.9 MPa to securely clamp large workpieces while adjusting the travel window to prevent over-travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50S the Right Cylinder?
Select this 100 mm bore cylinder when an application requires heavy thrust (up to 801 kgf at 1.0 MPa) alongside variable end-stops, stepping up from an 80 mm bore that provides 513 kgf. The 50 mm adjustment range is ideal for product-size changeovers on a line, whereas a fixed-stroke SAI cylinder would require physical shimming. For load-holding without live air pressure, this adjuster is not a lock; you would need the SAIL or BSAI series instead.
Ensure an exact ISO 15552 replacement match by verifying the 100 mm bore, 115 mm stroke, 50 mm adjustment, PT ports, and the -S magnet option. With a 115 mm stroke, side loads are minimal, but the 25 mm rod diameter and M20x1.5 thread handle standard stresses effectively. Operating speed ranges from 30-800 mm/s.
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 SAIJ100 Adjustable Cylinder SAIJ100AX115-50S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 50 mm, providing a usable travel window of 65 to 115 mm. It acts as a mechanical stop to tune the end position without changing the cylinder.
At an operating pressure of 0.9 MPa, the SAIJ100X115-50-S provides a push force of 7068 N and a pull force of 5497 N. At 1.0 MPa, it delivers a maximum push force of 801 kgf.
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