
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX450-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 450mm 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 SAIJ100X450-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 400 to 450 mm, letting you dial in the exact retract position during commissioning. The piston rod is built from SUS420J2 stainless steel for enhanced corrosion resistance.
This model uses a PT tapered G1/2 port and includes variable air cushions at both ends to manage kinetic energy. The extruded aluminum barrel integrates sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX450-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 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. |
| ×450 | 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 400-450 mm travel window during product size transitions without replacing the cylinder or bolting on new external stops.
Set precise retract positions for diverter arms or pushers on a packaging line, fine-tuning the 50 mm window to match package dimensions.
The 50 mm adjustment range is ideal for product changeovers, allowing you to reposition the end stop without swapping cylinders or adding external mechanical stops. For holding loads safely without air pressure, consider the SAIL or BSAI series instead.
As an ISO 15552 profile cylinder, it is dimensionally interchangeable with standard ISO 15552 cylinders such as SMC, Festo, and Aventics. When replacing, verify the 450 mm stroke, 50 mm adjuster, PT G1/2 port, SUS420J2 rod, and your mounting choice from the SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2. Since the stroke is 450 mm, use an external guide to prevent excessive side-loading on the rod.
Quick checklist
It reaches a maximum of 801 kgf at 1.0 MPa.
A rear stopper screw lets you shorten the 450 mm nominal stroke by up to 50 mm, creating a 400-450 mm usable travel window. This stopper only sets the end position; it does not lock or hold the load without live air pressure.
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