
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX350-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 350mm 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 SAIJ200X350-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, enabling a usable travel window of 300 to 350 mm. As a 200 mm bore unit, it provides massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa. This specific SKU includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet for position sensing.
Equipped with a PT tapered G3/4 port and M36x2 rod thread, it handles heavy loads while operating at 30-500 mm/s. The extruded aluminum barrel integrates sensor grooves on both sides, and the rear adjuster allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops. The adjuster acts purely as a travel stop, so live air is still required to hold the load.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX350-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 350 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. |
| ×350 | 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 300-350 mm end-stop during heavy press commissioning to accommodate material thickness variations without external stopper blocks.
Rapidly adjust the retract position for different large-scale product sizes on a production line, saving time on mechanical reconfiguration.
Fine-tune the stroke end-point for heavy assembly tooling, using the 50 mm window to set precise contact without reprogramming the machine.
Choose this 200 mm bore when you need extreme force, stepping up from a 160 mm bore that yields 10053 N push at 0.5 MPa. The 50 mm adjustment range is ideal for product changeovers, letting you fine-tune the retract end-position on the fly instead of bolting on external stops or replacing a fixed-stroke SAI cylinder. Because the 350 mm stroke exceeds 300 mm, an external guide is strongly recommended to manage side loads on the 40 mm rod.
For an exact ISO 15552 replacement, match the 200 mm bore, 350 mm stroke, 50 mm adjustment, PT port thread, and -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. If the application requires true load-holding without live air pressure, this cylinder will not suffice; consider an AirTAC SAIL pneumatic lock, BSAI clamp-lock, or an external rod lock instead.
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. At the maximum pressure of 1.0 MPa, it delivers up to 3204 kgf.
The rear adjuster screw allows you to trim the effective travel back by up to 50 mm from the 350 mm nominal stroke, giving an adjustable window of 300 to 350 mm. The adjuster acts as a travel stop and does not lock the load without live air.
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