Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-20S 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 SAIJ100X475-20S
The AirTAC SAIJ100X475-20-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster. It provides a 475mm nominal stroke that can be dialed back by up to 20mm, giving a usable travel window of 455-475mm for precise end-position tuning at commissioning. In the 100mm bore class, it delivers a push force of 3927N at 0.5MPa and up to 7068N at 0.9MPa.
This variant includes a standard carbon steel piston rod and a -S magnet for position sensing. The extruded aluminum barrel features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. Fluid ports are PT tapered G1/2, and the cylinder operates at speeds between 30 and 800mm/s.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-20S |
|---|---|
| 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 SAIJ100X475-20S
| 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 SAIJ100X475-20S Is Used
Variable End-Stop Tuning
Dial in the exact 455-475mm travel limit during machine commissioning to accommodate varying product lengths without adding external physical stops.
Production Line Changeover
Quickly adjust the retract position by up to 20mm when switching between product sizes on a conveyor, reducing downtime between runs.
High-Force Positioning
Leverage the 7068N push force at 0.9MPa to move heavy fixtures, using the rear screw to fine-tune the final resting position accurately.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-20S the Right Cylinder?
Select this 100mm bore adjustable-stroke cylinder when an application requires variable end-stops or fine-tuning during machine changeover without swapping the entire unit. If your project demands less force, stepping down to an 80mm bore yields 2513N at 0.5MPa; conversely, a 125mm bore provides 6136N. Because the 475mm stroke is relatively long, an external guide is recommended to prevent excessive side-loading on the 25mm rod and M20x1.5 thread.
The rear adjuster acts purely as a mechanical stop to set the travel end and relies on the integrated air cushions for deceleration. It does not hold the load without live air pressure. For true load-holding requirements, consider an AirTAC SAIL or BSAI cylinder. To match this ISO 15552 interchangeable replacement, specify: 100mm bore, 475mm stroke, 20mm adjustment, PT G1/2 ports, -S magnet, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ100X475-20S FAQ
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 20mm. This creates a usable travel window of 455-475mm, enabling fine end-position tuning without changing the cylinder or adding external stops.
At a 0.5MPa operating pressure, the SAIJ100X475-20-S provides 3927N of push force and 3681N of pull force. At 0.9MPa, the push force increases to 7068N.
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