
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX20-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 20mm 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.
Because the 20mm nominal stroke matches the 20mm adjustment code, technicians can dial the effective travel down to a zero-mm hard stop. This extreme adjustability is ideal for applications demanding precise end-position tuning without swapping hardware.
This SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. It uses PT tapered ports and, unlike standard tie-rod cylinders, utilizes an extruded aluminum barrel with sensor grooves on both sides. The rear adjuster acts purely as a travel stop for deceleration and does not hold the load without live air pressure.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX20-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 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. |
| ×20 | 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 clamping contact point on delicate components using the 0-20mm travel window, preventing over-travel damage during machine setup.
Rapidly adapt end-stops on a packaging line when switching to different product sizes, using the rear adjuster instead of physically swapping cylinders.
Select this 32mm bore cylinder when an application requires pinpoint end-position calibration at commissioning or during product changeovers, replacing the need for fixed-stroke SAI units. Remember that the rear screw functions only as an adjustable stop, not a lock; for load-holding without continuous air pressure, consider an external rod lock or the SAIL series.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 32mm bore, 20mm stroke, 20mm adjustment range, PT G1/8 port, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR configurations.
Quick checklist
The rear adjusting screw lets you shorten the effective stroke by up to 20mm. Since the nominal stroke is 20mm, this creates a 0-20mm usable travel window, allowing you to fine-tune the end position down to a zero-mm stop without adding external stops.
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