
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX185-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 185mm 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 SAIJ160X185-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel within a 145 to 185 mm window. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback integration.
This specific SKU is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance and utilizes PT tapered port threads. The rear adjustment mechanism acts purely as a mechanical stop to dial in the end position during commissioning; it does not lock or hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series instead.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 185 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. |
| ×185 | 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 end-position during product size transitions without adding external physical stops to the fixture.
Fine-tune the travel window at commissioning to accommodate varying component heights on the production line.
Choose this adjustable-stroke model when your machine setup requires variable end-stops or product changeover flexibility without physically swapping out the cylinder. The 40 mm adjustment window lets you trim the 185 mm nominal stroke back to 145 mm on the fly. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR styles.
Because this is a 185 mm stroke on a large bore, the 40 mm diameter SUS304 rod handles high side loads well, but an external guide is still recommended for heavy offset loads. It operates at speeds of 30-500 mm/s and is dimensionally interchangeable per ISO 15552. When ordering a replacement, match the 160 mm bore, 185 mm stroke, 40 mm adjustment, PT ports, and the B code for the SUS304 rod.
Quick checklist
The rear adjuster acts as a mechanical stop that lets you shorten the 185 mm nominal stroke by up to 40 mm, providing an effective travel window of 145 to 185 mm. It only sets the end position and does not hold the load without live air pressure.
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