
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X950-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 950mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ200X950-30 is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty applications. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Equipped with a rear mechanical stopper, this model allows you to trim the effective stroke by up to 30 mm, providing a usable travel window of 920 to 950 mm. This fine-tuning capability is ideal for dialing in exact end positions during commissioning without adding external stops. The cylinder operates at speeds of 30-500 mm/s and features adjustable air cushions at both ends to decelerate massive loads smoothly.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X950-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 950 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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. |
| ×950 | 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 bottoming position of a large forming press within the 920-950 mm window to accommodate varying material thicknesses without swapping tooling.
Quickly adjust the retract end-stop on an automated assembly line when switching between different large-scale product sizes, minimizing machine downtime.
Fine-tune the final resting position of heavy industrial components on a conveyor, relying on the 40 mm carbon steel rod to handle significant structural loads.
Conversely, if you need even greater clamping or pressing power, this model withstands a maximum operating pressure of 1.0 MPa, generating up to 3204 kgf.
The adjustable stroke is chosen over a fixed SAI cylinder when precise end-position tuning is needed during machine setup or product changeover. Because the 950 mm stroke is substantial, an external guide is strongly recommended to prevent excessive side-loading on the 40 mm rod, as the adjuster and air cushions act only as travel stops and deceleration devices, not as locks. For applications requiring the load to be held securely without live air pressure, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants instead. This dimensionally interchangeable ISO 15552 cylinder supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
Quick checklist
At its maximum rated pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the nominal 950 mm stroke by up to 30 mm, creating a usable travel window of 920 to 950 mm. It is a travel stop for fine-tuning end positions, not a locking device, and does not hold the load without continuous air pressure.
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