
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX650-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 650mm 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 SAIJ100X650-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 575 to 650 mm. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet interfaces directly with AirTAC CMSE reed and DMSE electronic solid-state switches.
This model features a SUS420J2 stainless steel rod (code A) paired with an M20x1.5 rod thread, offering robust resistance to corrosion and high side-load capacity. The rear adjuster functions strictly as a mechanical stop to fine-tune the retract end position during commissioning; it does not lock or hold the load without continuous live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX650-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 650 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. |
| ×650 | 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 575-650 mm retract end-stop during format size changes on a packaging line, avoiding the need to physically swap out the entire cylinder.
Move large pallets or fixtures over a 650 mm travel distance while relying on the dual air cushions and external guides to manage deceleration.
The adjustable -75 mm code is chosen over a fixed-stroke SAI cylinder when a machine must accommodate varying product sizes without physically swapping the actuator.
Because the nominal stroke is 650 mm, an external guide is recommended to prevent excessive side-loading on the M20x1.5 rod, despite the robust SUS420J2 material. For direct compatibility, match the PT tapered port threads, the ISO 15552 mounting dimensions, and the -S magnet requirement. Note that the SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. If true load-holding is required without live air, utilize an external rod lock or specify a SAIL or BSAI cylinder instead.
Quick checklist
At 0.5 MPa, the push force is 3927 N.
The rear mechanical screw allows you to trim the effective stroke back by up to 75 mm from the 650 mm nominal length, creating a 575-650 mm travel window. It acts as a travel stop and does not hold the load without live air.
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