
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X270-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 270mm 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 SAIJ200X270-75 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stroke adjuster. This built-in adjustability eliminates the need to swap out physical barrels or bolt on external stopper blocks when refining end positions.
Featuring a robust 40mm carbon steel rod and a G3/4 PT port, this 200mm bore unit handles massive loads with a maximum speed rating of 30-500mm/s. The extruded aluminum barrel incorporates sensor grooves on both sides for CMSE reed and DMSE electronic switches. It supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets to streamline heavy-duty adjustable setups.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 270 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. |
| ×270 | 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 195-270mm end position for heavy-duty pressing and stamping operations without installing external mechanical stops.
Quickly adapt the cylinder's effective stroke on automated lines when switching between different large product sizes or fixture heights.
Fine-tune the retract end-stop during initial machine commissioning to perfectly align heavy 200mm bore actuation points.
The 75mm adjustment range is highly valuable for production lines running multiple product sizes, as it permits rapid end-position tuning without replacing the cylinder. To match this ISO 15552 interchangeable cylinder exactly, specify the 200mm bore, 270mm stroke, 75mm adjustment, G3/4 PT port, and your desired mounting bracket.
Because the 270mm stroke exceeds 300mm only marginally, it remains relatively compact for a 200mm bore, but any long unsupported heavy load still requires an external guide to prevent side-loading damage to the 40mm rod. Remember that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true load-holding without continuous air, consider the AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinders.
Quick checklist
It features an external adjusting screw at the rear that acts as a mechanical stop, allowing you to shorten the effective stroke by up to 75mm. This creates a usable travel window of 195-270mm, letting you fine-tune the end position without changing the cylinder.
It can deliver up to 3204 kgf at its maximum 1.0 MPa pressure rating.
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