
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX160-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 160mm 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 SAIJ50X160-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, letting you dial back the 160 mm nominal travel by up to 40 mm to achieve a precise 120-160 mm usable window. It delivers 982 N of push force and 825 N of pull force at 0.5 MPa, fitting perfectly into medium-duty handling tasks. This variant features a SUS420J2 stainless steel rod and a magnet for CMSE or DMSE sensors.
Because the adjuster acts purely as a mechanical stop on the retract end, it does not hold the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX160-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 160 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. |
| ×160 | 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 120 to 160 mm travel distance during commissioning to perfect product placement without changing hardware.
Quickly adapt the retract length for different product sizes on a packaging line using the rear adjustment screw.
Provides 982 N of push force for pressing or locating components with a fine-tuned, variable end position.
Choose this 50 mm bore if your application requires a 982 N force class at 0.5 MPa, stepping up from the 40 mm bore which offers 628 N. The adjustable stroke is ideal for machine changeovers where you need to fine-tune the end position without swapping the cylinder or bolting on external stops. If you need to hold the load mechanically without air pressure, select the SAIL or BSAI series instead, as this adjuster is only a travel stop.
For ISO 15552 replacement matching, specify a 50 mm bore, 160 mm stroke, 40 mm adjustment, PT tapered ports, and the -S magnet option. Since the stroke is under 300 mm, side-load risks are moderate, but the 20 mm rod thread handles standard loads well; always guide unsupported heavy loads externally.
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. At the maximum 1.0 MPa pressure, it can deliver up to 200 kgf.
The rear adjuster screw lets you shorten the 160 mm nominal stroke by up to 40 mm, creating a usable travel window of 120 to 160 mm. It functions as a mechanical stop and does not lock or hold the load without live air pressure.
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