
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX65-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 65mm 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 SAIJ100X65-50 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 15-65 mm usable travel window, allowing you to dial back the nominal 65 mm stroke by up to 50 mm during commissioning.
The rear screw acts purely as a mechanical stop to fine-tune the end position without swapping the cylinder or adding external stops. It is not a locking device and will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI variants. This extruded aluminum profile cylinder supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 65 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. |
| ×65 | 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 between 15 and 65 mm on packaging machines without machining new hard stops or changing the cylinder.
Quickly adjust the stroke by up to 50 mm to accommodate different product lengths on a single line, minimizing downtime between runs.
The SUS304 stainless rod provides excellent corrosion resistance, and the G1/2 port ensures high flow. Because the stroke is under 300 mm, side-load risks are minimal, but external guides are still recommended for heavy loads.
When specifying a replacement, match the 100 mm bore, 65 mm stroke, 50 mm adjustment range, PT port thread, and the chosen mounting style. Note that this unit lacks a magnet; adding an -S suffix enables CMSE reed and DMSE electronic sensors via the dual-side barrel grooves. The adjuster and air cushions only decelerate the travel end, so never rely on them as a brake.
Quick checklist
At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the 65 mm nominal stroke by up to 50 mm, creating a usable travel window of 15 to 65 mm. This stopper sets the end position but does not lock the load without continuous air pressure.
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