Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-50S
The AirTAC SAIJ100X180-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 130 to 180 mm. Built with a SUS304 stainless steel rod and a PT tapered port, it delivers a robust 3927 N push force at 0.5 MPa. The integrated magnet enables position sensing with CMSE reed or DMSE electronic switches.
This adjustable-stroke design allows precise end-position tuning during commissioning without external stops. It uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The rear screw acts purely as a travel stop for deceleration, not a load-holding lock.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 180 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 SAIJ100BX180-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×180 | 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 SAIJ100BX180-50S Is Used
Product Changeovers
Dial in the 130-180 mm travel window on the fly to accommodate different package sizes without swapping cylinders.
Machine Setup
Fine-tune the retract end position during commissioning using the rear stopper instead of adding shims.
Variable End Stops
Ideal for diverter arms where the exact stopping point must be adjusted to handle varying product widths.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-50S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (2513 N push at 0.5 MPa) is insufficient but a 125 mm unit is too large. The 50 mm adjustment range is ideal for product changeovers requiring variable end stops. For load-holding without live air pressure, use an external rod lock or select an AirTAC SAIL or BSAI cylinder, as the SAIJ adjuster cannot hold loads.
To match this ISO 15552 interchangeable cylinder, specify a 100 mm bore, 180 mm nominal stroke, 50 mm adjustment, PT ports, and the -S magnet. The 25 mm rod and M20x1.5 thread handle high side loads, though any stroke of 300 mm or more requires an external guide.
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 SAIJ100BX180-50S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 50 mm, creating a usable travel window of 130 to 180 mm. It functions as a mechanical stop and does not lock the load without live air.
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