
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX800-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 800mm 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 SAIJ200X800-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical adjuster, providing a usable travel window of 750 to 800 mm. Fitted with a SUS304 stainless steel rod and a PT tapered G3/4 port, it delivers immense thrust, generating 15708 N of push force and 15080 N of pull force at a 0.5 MPa operating pressure. The extruded aluminum barrel features sensor grooves on both sides, and the integrated magnet allows precise position detection using CMSE reed or DMSE solid-state switches.
This model is engineered for heavy-duty applications requiring exact end-position tuning at commissioning without swapping out the entire cylinder. The rear stopper screw acts purely as a travel deceleration limit, meaning it will not mechanically hold a load if air pressure is lost. For applications requiring true fail-safe load holding, operators should integrate an external pilot-operated check valve or select a related AirTAC series like SAIL or BSAI.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX800-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 800 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. |
| ×800 | 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 750-800 mm travel window to fine-tune heavy product stops on a conveyor line during format changeovers.
Adjust the retract position on heavy-duty presses without physically swapping the cylinder or adding external mechanical spacers.
Leverage the 15708 N push force and SUS304 rod for high-stress material testing setups requiring precise travel limits.
Choose this 200 mm bore cylinder when your application requires maximum standard thrust up to 15708 N at 0.5 MPa, or step down to the 160 mm bore if 10053 N is sufficient. The adjustable 50 mm stroke window is ideal for variable product sizes on a line, allowing rapid changeover without adding external stops. Unlike a fixed-stroke SAI cylinder, the SAIJ rear screw fine-tunes the retract end position directly.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 800 mm stroke, 50 mm adjustment, PT G3/4 port, and SUS304 rod material. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because this unit features an 800 mm stroke, the long unsupported rod is highly susceptible to side-loading; always incorporate an external linear guide to prevent premature seal wear.
Quick checklist
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa operating pressure, it delivers up to 3204 kgf.
The rear adjuster screw lets you shorten the 800 mm nominal stroke by up to 50 mm, creating a 750 to 800 mm usable travel window. The adjuster acts as a stop and does not lock the load without live air pressure.
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