
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 225mm stroke, G3/4 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 SAIJ200X225-20 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. It features a 200mm bore and a 225mm nominal stroke, paired with a rear adjusting screw that allows you to dial back the travel by up to 20mm. This creates a usable stroke window of 205-225mm, enabling precise in-field commissioning without swapping out the physical actuator.
Built to generate 15708N of thrust at just 0.5MPa and reaching 28274N at 0.9MPa, this model handles massive loads. It features a robust 40mm SUS420J2 stainless steel rod and a G3/4 PT tapered port for high flow. The extruded aluminum barrel includes sensor grooves on both sides, and the variable air cushions at both ends work alongside the rear stopper to decelerate the payload smoothly.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 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. |
|---|---|
| 200 | Bore size in mm. |
| ×225 | 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 205-225mm clamping distance on large metal-forming presses during setup, ensuring precise deformation without replacing the actuator.
Adapt automated assembly lines to new large-component dimensions by simply turning the rear stopper screw, slashing retooling time between production runs.
Establish a precise mechanical end-limit for massive conveyors or material handling gates where the final resting position must be tweaked on-site.
Select this 200mm bore actuator when your machinery demands extreme force alongside variable end-stop positioning. If 15708N at 0.5MPa is overkill for your process, stepping down to a 160mm bore yields 10053N, whereas moving up is impossible within this series. The SAIJ200X225-20 is chosen over a fixed-stroke SAI specifically to eliminate mechanical shimming during machine setup or product changeover.
Because the stroke is 225mm, you should guide the load externally to prevent excessive side-loading on the 40mm rod. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for true pneumatic locking without pressure, consider the SAIL or BSAI series. To match this ISO 15552 footprint exactly, specify the 200x225-20 dimensions, PT G3/4 ports, SUS420J2 rod, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Quick checklist
This 200mm bore cylinder generates 15708N of push force and 15080N of pull force at 0.5MPa. At 0.9MPa, the push force increases to 28274N, making it suitable for heavy industrial applications.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the 225mm nominal stroke by up to 20mm, providing a usable travel window of 205-225mm. It only sets the end position and does not lock or hold the load without live air pressure.
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