
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX115-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 115mm 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 SAIJ100X115-50 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. This built-in adjustability allows fine end-position tuning at commissioning without swapping the cylinder or adding external stops.
This model features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered port threads. It includes variable air cushions at both ends to decelerate the load smoothly. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air pressure. For position-holding needs, consider the SAIL or BSAI series.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 115 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. |
| ×115 | 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 clamping position within the 65-115mm window during machine commissioning without needing external stopper blocks.
Quickly adjust the effective stroke on packaging lines when switching to a different product size, saving setup time and tooling costs.
Choose this 100mm bore when 50mm bore thrust (982N at 0.5 MPa) is insufficient, or step down if you need less force. The adjustable stroke is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, unlike a fixed-stroke SAI cylinder. To match this ISO 15552 footprint, specify the 100mm bore, 115mm stroke, 50mm adjustment, PT ports, and the SUS420J2 rod. Since the nominal stroke is 115mm, external guiding is not strictly required, but ensure the rod thread (M20x1.5) is properly aligned to handle side loads. Standard mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At 0.7 MPa, the push force increases to 5497N.
A rear adjusting screw lets you trim the 115mm nominal stroke back by up to 50mm, creating a usable travel window of 65-115mm. This stopper only sets the end position and does not lock the load without live air.
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