
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX175-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 175mm 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 SAIJ32X175-20-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 155 to 175 mm, allowing you to dial back the nominal 175 mm stroke by up to 20 mm during machine commissioning or product changeovers without adding external stops. In the compact 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This specific SKU is configured with a SUS420J2 stainless steel rod (option A) for improved corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, and because this model carries the -S magnet, it is fully compatible with AirTAC CMSE reed switches and DMSE solid-state sensors for precise end-of-stroke detection. Fluid ports are PT (tapered) G1/8.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX175-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 175 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. |
| ×175 | 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.
Fine-tune the 155-175 mm travel window during initial setup to perfect end-of-stroke positioning without machining new hard stops.
Quickly adapt the cylinder's effective stroke on packaging lines when handling slightly different product lengths.
Dial in the exact 20 mm retraction adjustment to apply consistent seating force without over-traveling the assembly.
Choose this 32 mm bore cylinder when your application requires 402 N of push force at 0.5 MPa. If your process demands greater thrust, stepping up to the 40 mm bore yields 628 N of push force at the same pressure. The adjustable stroke is ideal for setups requiring variable end-stops or fine-tuning at commissioning, which avoids the hassle of swapping out a fixed-stroke SAI cylinder. For mounting, SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces, deliberately omitting FB, CA, CB, and CR.
Because the nominal stroke is 175 mm, an external guide is not strictly required for side loads, but always ensure the 12 mm rod and M10x1.25 rod thread are not subjected to excessive lateral forces. Remember that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for fail-safe load holding, consider an SAIL or BSAI cylinder. To match this ISO 15552 replacement exactly, verify the 175 mm stroke, 20 mm adjustment, PT G1/8 ports, and the -S magnet option.
Quick checklist
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 20 mm. This creates a usable travel window of 155 to 175 mm, allowing you to fine-tune the retract end-position at commissioning without replacing the cylinder.
At 0.5 MPa operating pressure, the 32 mm bore provides 402 N of push force and 345 N of pull force. If higher forces are needed, the 40 mm bore provides 628 N of push force at the same pressure.
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