
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 290mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ32X290-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that creates a usable travel window of 270 to 290 mm. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa, scaling up to 563 N at 0.7 MPa. This unit includes a SUS304 stainless steel rod for corrosion resistance and a magnet for CMSE reed and DMSE electronic sensors.
The rear adjustment screw allows you to fine-tune the end position during commissioning without adding external stops. Because the stroke is 290 mm on a 12 mm rod, you should use an external guide to prevent side-load damage. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 290 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
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. |
|---|---|
| 32 | Bore size in mm. |
| ×290 | 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 270 to 290 mm travel distance during machine setup without swapping out the entire cylinder or adding external stopper blocks.
Adapt the cylinder stroke on packaging lines when product dimensions change, using the 20 mm rear adjustment screw to match new formats quickly.
Leverage the SUS304 stainless steel rod in environments requiring higher corrosion resistance while maintaining standard ISO 15552 mounting dimensions.
Choose this 32 mm bore when your application requires up to 402 N of push force at 0.5 MPa. If your load demands higher thrust, step up to the 40 mm bore which provides 628 N of push force. The adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers, whereas a fixed SAI cylinder is better for static, repetitive cycles.
Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series. This SAIJ32X290-20-S features PT tapered ports and a 12 mm rod; with a 290 mm stroke, an external guide is necessary to manage side loads.
Quick checklist
At an operating pressure of 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The nominal stroke is 290 mm, but the built-in rear adjuster allows you to shorten the effective travel by up to 20 mm. This creates an adjustable usable window of 270 to 290 mm to fine-tune the end position without changing the cylinder.
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