
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX500-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 500mm 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 SAIJ32X500-40-S is a double-acting, adjustable-stroke ISO 15552 profile cylinder featuring a 32mm bore and a 500mm stroke. An integrated rear stopper mechanism allows you to dial back the travel by up to 40mm, creating a precise 460-500mm usable window for fine-tuning end positions during machine commissioning.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and includes a built-in magnet for position sensing. The extruded aluminum barrel integrates sensor grooves on both sides, seamlessly supporting AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster functions strictly as a travel stop to set deceleration endpoints, not as a lock, meaning live air pressure is required to hold the load.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 500 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. |
| ×500 | 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 460-500mm travel endpoint during initial machine setup without machining new hard stops or changing the cylinder.
Quickly adjust the retract stop on packaging lines when switching between different product sizes that require slightly different stroke lengths.
Choose this 32mm bore adjustable model when your setup requires exact end-position tuning without swapping out the entire cylinder or adding bulky external stops. For load-holding applications without continuous air pressure, this cylinder is insufficient; you would need to specify a SAIL pneumatic lock or BSAI clamp-lock cylinder instead.
At a 500mm stroke, the 12mm rod diameter is susceptible to side-loading; an external guide rail is strongly recommended to prevent rod bending and premature seal wear. To directly replace this unit, match the 32mm bore, 500mm stroke, 40mm adjustment range, PT tapered port threading, 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 brackets.
Quick checklist
The rear adjuster acts as an external stop that lets you shorten the effective stroke by up to 40mm, providing a usable travel window of 460-500mm. It only sets the travel end and deceleration point; it does not lock or hold the load without live air pressure.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.