Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 475mm 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
- Stroke475 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-40
The AirTAC SAIJ100X475-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, letting you dial the effective travel back by up to 40 mm. This yields a usable 435-475 mm end-position window, ideal for fine-tuning machine setups without swapping hardware. It features a SUS304 stainless steel rod and a PT tapered port.
Delivering 3927 N of push force at 0.5 MPa and 7068 N at 0.9 MPa, it handles heavy loads. The extruded aluminum barrel includes dual sensor grooves, though no magnet is installed. The rear screw acts purely as a travel stop, so you still need live air to hold loads.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 475 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 SAIJ100BX475-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×475 | 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 SAIJ100BX475-40 Is Used
Machine Setup Tuning
Fine-tune the 435-475 mm travel window during commissioning to achieve precise end-positioning without adding external stopper blocks.
Product Size Changeover
Quickly adapt the cylinder's effective stroke on automated lines when packaging or product dimensions shift.
Heavy Load Positioning
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets or actuators, adjusting the stopper for varying end-stop requirements.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-40 the Right Cylinder?
Choose this 100 mm bore when 80 mm falls short (2513 N at 0.5 MPa) but 125 mm is excessive. The 40 mm adjustment window is perfect for product changeovers. For load-holding without air, use SAIL or BSAI. Match ISO 15552 dimensions: 100 mm bore, 475 mm stroke, PT port, Basic/LB/TC mounts. At 475 mm stroke, use an external guide to manage side loads.
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 SAIJ100BX475-40 FAQ
At 0.5 MPa it provides 3927 N push and 3681 N pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw lets you shorten the 475 mm nominal stroke by up to 40 mm, creating a 435-475 mm usable travel window. It functions as a mechanical stop, not a lock.
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