
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 550mm 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 SAIJ32X550-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 550 mm travel by up to 30 mm, creating a precise 520-550 mm usable window. Delivering 402 N of push force at 0.5 MPa, it is equipped with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors.
This model utilizes a PT tapered port thread and relies on adjustable air cushions at both ends to decelerate the load. The rear adjuster acts strictly as a mechanical stop for end-position tuning during commissioning; it does not hold the load without live air pressure. For applications requiring true load-holding, consider the SAIL or BSAI series instead.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 550 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. |
| ×550 | 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-of-stroke position within the 520-550 mm window during initial setup, eliminating the need to machine custom external spacers for minor positional corrections.
Quickly adjust the retract stop by up to 30 mm on packaging lines when switching between product sizes, keeping downtime to a minimum without swapping the cylinder.
Ideal for pushing or sorting items along a long conveyor belt, using the rear stopper to fine-tune the pusher distance based on varying package dimensions.
Choose this 32 mm bore when your application requires moderate force (402 N push at 0.5 MPa) and a long 550 mm stroke with the flexibility to trim travel by up to 30 mm without external stops. If your setup demands higher thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Conversely, if you need less travel and lower force, the 20 mm bore class is more compact.
Because this cylinder features a 550 mm stroke, the 12 mm rod and M10x1.25 thread will experience amplified leverage on the piston over extended travel; an external guide rail is strongly recommended to prevent excessive side-loading and premature seal wear. When replacing an ISO 15552 unit, match the 32 mm bore, 550 mm stroke, PT port, and Basic/FA/LB/TC mounting interface. The -S magnet ensures compatibility with AirTAC CMSE and DMSE switches.
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. If you increase the pressure to 0.7 MPa, the push force rises to 563 N.
The rear adjuster screw allows you to mechanically shorten the 550 mm nominal stroke by up to 30 mm, giving a usable travel range of 520 to 550 mm. This stopper only sets the end position; it does not lock or hold the load without continuous air pressure.
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