
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 55mm 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 SAIJ32X55-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. Its 55 mm nominal stroke can be dialed back by up to 50 mm, providing a wide 5 to 55 mm usable travel window for precise end-position tuning during commissioning. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and features a PT tapered port thread.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops when product sizes change. The extruded aluminum barrel includes sensor grooves on both sides, and the rear adjuster acts strictly as a mechanical stop for deceleration, not a lock. For applications requiring position holding without live air pressure, consider the SAIL or BSAI series instead.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 55 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. |
| ×55 | 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 retract distance from 5 to 55 mm instantly when switching product sizes on a packaging line.
Fine-tune the final end position during machine commissioning without physically swapping the cylinder.
Set multiple retract positions on the fly for assembly machines requiring flexible stroke lengths.
Choose this 32 mm bore model when you need 402 N of push force at 0.5 MPa and highly variable end-stops within a compact 5 to 55 mm window. If your application requires higher force, stepping up to the 40 mm bore increases output to 628 N. Conversely, if you need less force, the smaller bore options offer a lighter footprint. The 12 mm rod and M10x1.25 thread handle moderate side loads, but always guide the load externally for smooth operation.
This SAIJ configuration includes a SUS304 stainless steel rod and a PT tapered port. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552. Because it lacks a magnet, it does not support CMSE or DMSE sensors without modification.
Quick checklist
At 0.5 MPa operating pressure, 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 rear adjuster screw allows you to trim the 55 mm nominal stroke back by up to 50 mm, creating a usable travel window of 5 to 55 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without live air.
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