
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX650-20S 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 SAIJ200X650-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to fine-tune the end position by up to 20 mm. This yields a precise 630-650 mm usable travel window at commissioning without needing external stops. It delivers massive thrust, generating 15708 N of push force and 15080 N of pull force at 0.5 MPa.
Built for demanding environments, this variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions, while the M36x2 rod thread and 40 mm rod diameter provide a robust interface capable of handling high side loads.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX650-20S |
|---|---|
| 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.
Dial in the exact 630-650 mm end position during heavy press commissioning to accommodate material thickness variations without machining new stop blocks.
Quickly adjust the stroke window on automated assembly lines when switching between large product sizes, minimizing machine downtime.
Move substantial loads using the 15708 N push force, relying on the 40 mm SUS304 rod to maintain structural integrity in harsh environments.
Select this 200 mm bore cylinder when an application requires extreme force that smaller bores cannot provide, such as the 160 mm bore yielding 10053 N at 0.5 MPa. The adjustable stroke is ideal for product changeovers, allowing operators to dial in the 630-650 mm travel range without swapping hardware. For exact ISO 15552 replacement matching, verify the 650 mm stroke, 20 mm adjustment, PT tapered port threads, and the -S magnet requirement.
Because the 650 mm stroke is substantial, an external guide is recommended to prevent excessive side-loading on the rod. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an AirTAC SAIL or BSAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It can reach a maximum push force of 28274 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the nominal 650 mm stroke by up to 20 mm, creating a 630-650 mm usable travel window. This stopper only sets the end position and does not lock the load without continuous air pressure.
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