
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X800-75S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ200X800-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 725 to 800 mm. The extruded aluminum barrel features sensor grooves on both sides, and the -S magnet pairs directly with AirTAC CMSE reed and DMSE solid-state switches for precise end-of-stroke detection.
This variant uses a carbon steel piston rod with an M36x2 thread and a PT tapered port. The rear adjuster functions purely as a travel stop to fine-tune the retract position, meaning it cannot hold a load without continuous live air pressure. For safety locking under zero pressure, a SAIL or BSAI variant would be required.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-75S |
|---|---|
| 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 | 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. |
| ×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.
Modify the retract distance on the fly to handle varying pallet or product sizes on a high-capacity conveyor line, using the rear screw to set the new zero position.
Fine-tune the end-of-stroke position during initial commissioning of large-scale machinery, ensuring perfect alignment without adding external mechanical stops.
An adjustable stroke is selected over a fixed SAI cylinder when a machine requires variable end-stops to accommodate product changeovers without physically swapping the cylinder body. To match this ISO 15552 replacement exactly, specify the 200 mm bore, 800 mm stroke, 75 mm adjustment, PT port thread, and the -S magnet.
Because the 800 mm stroke is substantial and the 40 mm rod is highly rigid, the cylinder can endure significant side loads, yet an external guide is still strongly recommended to prevent binding over such a long unsupported travel. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR.
Quick checklist
At its maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster screw acts as a travel stop that lets you shorten the effective stroke by up to 75 mm, creating a usable travel window of 725 to 800 mm. It only sets the end position and does not lock the load without live air pressure.
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