Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-100 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 SAIJ100X475-100
The AirTAC SAIJ100X475-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 100 mm. This creates a highly flexible usable travel window between 375 and 475 mm, letting you dial in the exact retract end-position during commissioning without swapping out the physical cylinder. Belonging to the 100 mm bore class, it delivers a robust push force of 3927 N at 0.5 MPa and up to 7068 N at 0.9 MPa, making it well-suited for heavy-duty positioning tasks.
The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection mounting, though this specific configuration uses a standard carbon steel rod without a magnet. It features a 25 mm piston rod and M20x1.5 rod thread, providing high rigidity against side loads. However, because the 475 mm stroke is relatively long, an external guide is recommended to prevent rod sag and premature seal wear. The rear adjuster functions strictly as a travel stop combined with variable air cushions at both ends to decelerate the load, but it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-100 |
|---|---|
| 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 SAIJ100X475-100
| 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 SAIJ100X475-100 Is Used
Machine Setup & Changeover
Fine-tune the retract end-position on the fly during product line changeovers, using the 100 mm adjustment window to adapt the 475 mm stroke to new part sizes without changing the cylinder.
Variable End-Stop Positioning
Dial in the exact end-of-stroke location within the 375-475 mm travel range during commissioning, allowing precise mechanical calibration without relying solely on software limits.
Heavy-Duty Clamping
Leverage the 100 mm bore's 7068 N push force at 0.9 MPa to securely clamp large workpieces, using the adjustable stop to compensate for varying material thicknesses.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-100 the Right Cylinder?
Select this 100 mm bore cylinder when your application requires substantial thrust (3927 N at 0.5 MPa) and a precise, variable retract position within a 375-475 mm window. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, while stepping up to a 125 mm bore provides 6136 N. Choose this adjustable SAIJ model over a fixed-stroke SAI when you need to fine-tune end stops during machine setup or accommodate product-size changeovers without adding external stops.
For a drop-in ISO 15552 replacement, match the 100 mm bore, 475 mm nominal stroke, 100 mm adjustment range, PT G1/2 port thread, and the standard carbon steel rod material. Because the stroke is 475 mm, ensure your mounting configuration (choosing from Basic, FA, LB, TC, FTC, TCM1, or TCM2) supports the load adequately with an external guide. Remember that the rear adjuster is a stop, not a lock; if you need to hold the load safely without live air, consider the SAIL or BSAI series instead.
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 SAIJ100X475-100 FAQ
At 0.5 MPa operating pressure, the 100 mm bore provides a push force of 3927 N and a pull force of 3681 N. At 0.9 MPa, the push force increases to 7068 N.
The rear adjusting screw acts as a mechanical stopper that allows you to shorten the 475 mm nominal stroke by up to 100 mm. This provides a usable travel window of 375 to 475 mm, which can be fine-tuned during commissioning without replacing the cylinder.
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