The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX180-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 180mm stroke, G1/4 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 SAIJ50X180-10 is a double-acting ISO 15552 profile cylinder with a rear-mounted stroke adjuster. It provides a usable travel window of 170 to 180 mm, letting you dial back the nominal stroke by up to 10 mm during commissioning without adding external stops. In the 50 mm bore class, it generates 982 N of push force and 825 N of pull force at 0.5 MPa.
This unit features 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 for direct mounting of CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a travel stop for end-position tuning; it does not hold the load without live air pressure.
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX180-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 180 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×180 | 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 170-180 mm retract position when switching a packaging line to a new carton size.
Trim up to 10 mm of travel during machine setup to perfect the seating force without swapping cylinders.
Provide adjustable end-positioning for a press or clamping fixture that handles slight part variations.
Choose this 50 mm bore model when your application requires 982 N of push force at 0.5 MPa. If you need less force, the 40 mm bore offers 628 N; if you need more, stepping up to the 63 mm bore provides 1559 N. The 10 mm adjustable range is ideal for fine-tuning the retract end-position on product changeovers, which is often more practical than swapping in a fixed-stroke SAI cylinder.
For load-holding without continuous air pressure, note that this cylinder's rear adjuster is a stop, not a lock. You would need to look at the SAIL (air-released lock) or BSAI (clamp-lock) series instead. This SAIJ50X180-10 uses PT tapered port threads and supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). With a 180 mm stroke, side-load is minimal, but long unsupported strokes still require an external guide.
Quick checklist
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. It can reach 1767 N of push force at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from 180 mm down to 170 mm. It is used for fine-tuning end positions at commissioning but does not lock the load without live air pressure.
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