
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX280-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 280mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ160X280-20 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stopper, allowing you to dial back the nominal 280 mm stroke to a precise 260-280 mm window.
This configuration uses a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered ports. It relies on standard variable air cushions at both ends for end-of-stroke deceleration. For load-holding without live air pressure, you must integrate an external rod lock or choose a SAIL or BSAI variant, as the rear adjuster acts purely as a travel stop.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 280 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | — |
| Max (@1.0 MPa) | 1922 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. |
|---|---|
| 160 | Bore size in mm. |
| ×280 | 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 260-280 mm travel window during line format changes to accommodate different package sizes without swapping hardware.
Fine-tune the retract end-stop during initial machine setup to clear mechanical interference without adding external spacers.
The 20 mm adjustment window is ideal for fine-tuning end positions during machine setup or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. To match this ISO 15552 footprint exactly, specify the 160 mm bore, 280 mm stroke, PT ports, and your required mounting from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Because the 280 mm stroke is substantial, the 40 mm diameter SUS304 rod and its M36x2 thread provide robust support, but an external guide is still recommended to prevent excessive side-loading on long unsupported travels. Note that this model omits a magnet; adding an -S suffix enables CMSE reed or DMSE electronic sensors in the dual-side barrel grooves.
Quick checklist
At the maximum 1.0 MPa pressure, it can deliver up to 2050 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 280 mm nominal stroke down to 260 mm. It sets the end position but does not lock the load; air cushions handle deceleration.
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