
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX375-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 375mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ32X375-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. The rear adjustment screw acts purely as a mechanical stop to decelerate the travel end, meaning it will not hold the load without live air pressure.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 375 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 | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 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. |
|---|---|
| 32 | Bore size in mm. |
| ×375 | 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.
Quickly dial in the end-stop from 355 to 375mm during product size changes without physically replacing the cylinder or adding external stopper blocks.
Fine-tune the exact retracted position during commissioning to perfect the pickup alignment of delicate pneumatic actuators.
If your application needs less force, stepping down to a 25mm bore might be an option, but if you require higher force, consider stepping up to a 40mm bore which provides 628N at 0.5MPa. Because the stroke is 375mm, you must account for potential side-loading on the 12mm rod; an external guide is highly recommended to prevent premature seal wear.
The adjustable stroke is ideal for variable end-stops and product changeovers, whereas a fixed-stroke SAI cylinder lacks this commissioning flexibility. If your machine requires true load-holding without live air pressure, note that this adjuster is not a lock—you should look at the SAIL or BSAI series instead. For exact ISO 15552 replacement matching, verify the 32mm bore, 375mm stroke, 20mm adjustment, PT G1/8 port, and the specific mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Quick checklist
It operates at speeds between 30 and 800 mm/s.
The rear adjuster screw lets you shorten the 375mm nominal stroke by up to 20mm, creating a 355-375mm usable travel window. It functions as a mechanical stop to set the travel end and does not lock or hold the load without live air pressure.
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