
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 650mm 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 SAIJ200X650-40 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It provides a nominal 650 mm travel that can be fine-tuned backward by up to 40 mm, yielding a precise 610 to 650 mm usable window for exact end-position calibration. Belonging to the 200 mm bore class, it delivers 15708 N of push thrust and 15080 N of pull thrust at 0.5 MPa, making it suitable for moving heavy masses.
This unit is configured with a SUS420J2 stainless steel rod (option A) for enhanced resistance to surface wear and corrosion. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU is supplied without a magnet. It features tapered PT G3/4 ports and operates at speeds between 30 and 500 mm/s.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 650 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. |
| ×650 | 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.
Provides 15708 N of thrust at 0.5 MPa for heavy joining operations, with the 40 mm adjuster allowing precise tuning of the pressing depth.
Quickly adapts the 650 mm travel window down to 610 mm during line changeovers for different large product sizes without swapping hardware.
Shifts heavy workpieces over a 610 to 650 mm range, relying on the 40 mm rod diameter and external guides to handle the long unsupported travel.
Select this 200 mm bore model when an application requires shifting substantial payloads, stepping up from a 160 mm bore that yields 10053 N of push force at 0.5 MPa. The adjustable stroke is chosen over a fixed SAI cylinder when you need to dial in the exact end-stop during commissioning or product changeover without adding external stops. Because the 650 mm stroke is substantial, an external guide is recommended to manage side loading on the 40 mm rod.
For an exact ISO 15552 replacement, match the 200 mm bore, 650 mm stroke, 40 mm adjustment range, PT G3/4 port thread, and the basic mounting interface. Note that the SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. The rear adjuster acts only as a travel stop and does not hold the load without live air; for pilot-operated load holding, consider the SAIL or BSAI series.
Quick checklist
This 200 mm bore cylinder generates 15708 N of push force and 15080 N of pull force at 0.5 MPa. At the maximum operating pressure of 1.0 MPa, it achieves a push force of 3204 kgf.
The rear adjuster screw acts as a mechanical stop that trims the 650 mm nominal stroke back by up to 40 mm, creating a 610 to 650 mm usable travel window. It sets the end position but does not lock the load without live air pressure.
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