
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX450-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 450mm 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 SAIJ200X450-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty automation. It features a SUS304 stainless steel rod and PT tapered ports. The -100 adjustment code provides a 350-450 mm usable travel window, allowing you to dial back the nominal 450 mm stroke by up to 100 mm during commissioning without swapping hardware.
Generating 15708 N of push force at 0.5 MPa, this bore handles extreme loads. The rear screw acts purely as a travel stop for end-position tuning, not a lock, so live air is required to maintain position. It supports variable air cushions at both ends and operates at 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE or DMSE switches if a magnet is added later.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX450-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 450 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. |
| ×450 | 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.
Fine-tune the 350-450 mm retract stop on heavy pressing assemblies to achieve precise end-positioning without machining new hard stops.
Adjust the stroke by up to 100 mm on the fly to accommodate different pallet sizes on a high-thrust conveyor transfer line.
Leverage the 15708 N push force to move heavy chassis components, using the rear screw to softly set the final resting position.
Select this 200 mm bore when a 160 mm bore (providing 10053 N push at 0.5 MPa) is insufficient for your load. The 100 mm adjustable window is ideal for production lines running mixed product sizes, enabling rapid changeover by tweaking the retract end-stop rather than physically replacing the cylinder with a fixed-stroke SAI variant. Because the 450 mm stroke creates a long lever arm, an external guide is strongly recommended to prevent excessive side-loading on the rod.
For a true ISO 15552 replacement match, verify the 200 mm bore, 450 mm stroke, PT port threads, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that FB, CA, CB, and CR mounts are omitted from this series. If your application requires holding the load without continuous air pressure, the plain adjuster will not suffice; consider an external rod lock or the AirTAC SAIL lock variant.
Quick checklist
At 0.5 MPa operating pressure, this 200 mm bore cylinder generates 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 effective stroke by up to 100 mm, providing a usable travel window of 350-450 mm. It functions as a mechanical stop for end-position tuning and does not lock the load without live air pressure.
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