
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX500-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 500mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ100X500-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical adjuster, providing a usable travel window of 460 to 500 mm. This configuration includes a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and a PT tapered port thread.
This model features a magnet for use with AirTAC CMSE reed and DMSE electronic sensors, fitting directly into the extruded aluminum barrel grooves on both sides. The rear stopper mechanism allows operators to fine-tune the retract end position during commissioning or product changeovers without adding external stops. Remember that the adjuster acts only as a travel stop; it does not hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX500-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 500 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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.
Dial in the exact 460-500 mm retract position for machining parts of varying widths without swapping out the entire cylinder assembly.
Quickly reposition the stroke end-stop on a packaging line to accommodate different carton sizes, ensuring precise downstream flow.
Choose this 100 mm bore cylinder when a 50 mm bore provides insufficient thrust (982 N at 0.5 MPa) and you need precise end-position tuning over a 460-500 mm window. The integrated rear adjuster is ideal for variable end-stop setups, whereas a fixed SAI cylinder is better for static, unchanging strokes. Because the total stroke is 500 mm, the 25 mm rod diameter should be supported by an external guide to prevent excessive side-loading and premature seal wear.
When specifying an ISO 15552 replacement, match the 100 mm bore, 500 mm stroke, 40 mm adjustment, PT G1/2 ports, and the -S magnet requirement. For applications needing true load-holding without continuous air pressure, consider the SAIL pneumatic lock or BSAI clamp-lock cylinders instead of relying on this cylinder's stopper. SAIJ supports the Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting set, omitting FB, CA, CB, and CR.
Quick checklist
It operates at speeds between 30 and 800 mm/s.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective 500 mm stroke by up to 40 mm, creating a usable travel window of 460 to 500 mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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