Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-30 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 SAIJ100X475-30
The AirTAC SAIJ100X475-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 100mm bore and a 475mm nominal stroke that can be dialed back by up to 30mm, providing a usable travel window of 445-475mm for precise end-position tuning. Delivering 3927N of push force at 0.5MPa, it fits seamlessly into heavy-duty setups requiring exact positioning.
This model incorporates a carbon steel piston rod with an M20x1.5 thread and a G1/2 port. The extruded aluminum barrel includes sensor grooves on both sides, allowing for direct mounting of CMSE reed or DMSE electronic solid-state sensors if a magnet is specified later. The rear adjustment mechanism acts purely as a travel stop to fine-tune the retract position and relies on the integrated air cushions for end-of-stroke deceleration; it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-30 |
|---|---|
| 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 SAIJ100X475-30
| 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 SAIJ100X475-30 Is Used
Machine Changeover
Dial in the retract end-stop within the 445-475mm window during product size transitions without swapping out the entire actuator.
Press Positioning
Fine-tune the final end position on a 3927N assembly press at 0.5MPa, ensuring components bottom out accurately every cycle.
Conveyor Diverter Setup
Adjust the stroke length on the fly during line commissioning to perfectly align heavy diverter arms without adding external mechanical stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X475-30 the Right Cylinder?
Selecting the SAIJ100X475-30 makes sense when a machine requires exact 445-475mm end-stop tuning during commissioning or product changeover without physically swapping the cylinder or adding external stops. If your application needs less push force, stepping down to an 80mm bore yields 2513N at 0.5MPa, whereas moving up to a 125mm bore provides 6136N. Because the 475mm stroke is relatively long, the 25mm rod should be paired with an external guide to prevent excessive side-loading and premature seal wear.
When matching this ISO 15552 dimensionally interchangeable cylinder for a replacement, verify the 100mm bore, 475mm stroke, 30mm adjustment range, G1/2 PT tapered port, and the specific mounting accessory (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that this plain SAIJ model lacks a magnet (-S); for load-holding without live air pressure, consider the SAIL or BSAI series or an external rod lock, as the adjuster here is strictly a stop, not a brake.
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 SAIJ100X475-30 FAQ
At 0.5MPa operating pressure, this 100mm bore cylinder generates 3927N of push force and 3681N of pull force. At 0.9MPa, the push force increases to 7068N.
The rear adjuster screw lets you shorten the effective travel from the 475mm nominal stroke down to 445mm. It functions as a mechanical stop to tune the retract end position and does not lock the load without continuous air pressure.
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