
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX500-75S 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 SAIJ100X500-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the retract travel, creating a precise 425-500 mm usable window. The integrated magnet supports CMSE reed and DMSE electronic sensors for exact position feedback.
Because the adjuster acts as a fixed stop at the rear cap, it decelerates the piston without holding the load pneumatically. For true load-holding without live air pressure, an external rod lock or related AirTAC types like SAIL or BSAI are required. The extruded aluminum barrel includes dual sensor grooves, and the mounting set omits FB, CA, CB, and CR options, utilizing Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-75S |
|---|---|
| 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 retract distance from 425 to 500 mm during line format changes, setting new end positions without swapping hardware.
Fine-tune the clamping depth on large fixtures where a fixed 500 mm stroke would over-travel, using the rear stopper to hit the exact mark.
Adjust the stroke length on sorting pushers to handle varying package sizes on a single conveyor line without adding external stops.
Select this 100 mm bore cylinder when your application requires substantial thrust—3927 N at 0.5 MPa or up to 7068 N at 0.9 MPa. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa. The 75 mm adjustment range is perfect for machine setups needing variable end-stops during product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder.
When configuring your replacement, verify the 500 mm stroke, 75 mm adjustment, PT tapered port threads, and the -S magnet option. Since this cylinder features a 500 mm stroke, the 25 mm rod diameter and M20x1.5 thread will carry significant side loads; always use an external guide to prevent rod binding. Operating speed is 30-800 mm/s, and the cylinder is dimensionally interchangeable per ISO 15552.
Quick checklist
The nominal stroke is 500 mm, but the rear adjuster allows you to shorten the effective retract travel by up to 75 mm. This creates a usable travel window of 425 to 500 mm, enabling fine-tuning at commissioning without external stops.
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