Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-20 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 SAIJ100BX475-20
The AirTAC SAIJ100X475-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. Its built-in adjustment screw provides a usable travel window of 455 to 475mm, allowing you to dial in the exact retract end-position during commissioning without swapping hardware. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
This configuration utilizes a SUS304 stainless steel rod for superior corrosion resistance and ships with PT tapered port threads. Because the stroke extends to 475mm, the 25mm rod diameter and M20x1.5 rod thread provide robust support, though an external guide is recommended to manage side loads on longer travels. The rear stopper acts purely as a travel limit and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-20 |
|---|---|
| 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 SAIJ100BX475-20
| 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 SAIJ100BX475-20 Is Used
Product Size Changeovers
Quickly shift the retract end-stop by up to 20mm during packaging line format changes without disassembling the cylinder or adding external mechanical stops.
Machine Setup Commissioning
Fine-tune the 455-475mm travel window during initial machine build to perfectly time the stroke sequence and avoid costly re-machining of hard stops.
Corrosive Assembly Lines
Leverage the 5497N push force and SUS304 stainless steel rod to reliably actuate heavy clamps in washdown or mildly corrosive manufacturing environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX475-20 the Right Cylinder?
Choose this 100mm bore when an 80mm cylinder (providing 3518N push at 0.7 MPa) lacks the thrust for your payload, but a 125mm unit is oversized. The 20mm adjustment range is ideal for product changeovers on a line, letting you shift the end-stop by up to 20mm instantly instead of adding external stops or reverting to a fixed-stroke SAI cylinder. If your application requires holding a load without continuous air pressure, note that this adjuster is not a lock; you would need to explore an AirTAC SAIL or BSAI cylinder instead.
To match this exact ISO 15552 interchangeable footprint, specify a 100mm bore, 475mm stroke, PT port threads, and the SUS304 (B) rod material. Mounting choices include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since no magnet is specified, position sensing via CMSE reed or DMSE electronic switches is not enabled out of the box.
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 SAIJ100BX475-20 FAQ
At a standard operating pressure of 0.7 MPa, this 100mm bore cylinder generates 5497N of push force and 4523N of pull force. It can reach a maximum push force of 7068N at 0.9 MPa.
The rear adjuster screw allows you to shorten the nominal 475mm stroke by up to 20mm, creating a usable travel window of 455 to 475mm. It acts as a physical stop to fine-tune the end position, but it is not a locking device and will not hold the load without live air pressure.
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