
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X75-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 75mm 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.
It features a 200mm bore and a 75mm nominal stroke, paired with a PT tapered port thread and a robust 40mm carbon steel rod. An integrated rear adjusting screw allows you to dial back the effective travel, creating a precise 45-75mm usable window without swapping out the hardware.
Because the rear stopper acts purely as a travel end-limit and relies on the variable air cushion for deceleration, it cannot hold a load without continuous live air. For secure load-holding, an external pilot-operated check valve or a related SAIL locking cylinder is required. This extruded aluminum body includes dual sensor grooves, supporting CMSE reed and DMSE electronic switches if a magnet is added later.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X75-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 75 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. |
| ×75 | 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 45-75mm end-position during machine commissioning to ensure perfect pressing force without machining custom spacers.
Quickly adjust the stroke rearward by up to 30mm on a packaging line to accommodate different pallet heights on the fly.
The adjustable stroke is specifically beneficial here for product-size changeovers, allowing operators to fine-tune the 45-75mm travel window on the fly instead of installing fixed external stops.
When replacing an ISO 15552 cylinder, match the 200mm bore, 75mm stroke, 30mm adjustment, PT port thread, and carbon steel rod. Mounting choices are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Although the stroke is under 300mm, the heavy moving mass of a 200mm piston means external guiding is highly recommended to prevent excessive side-loading on the rod.
Quick checklist
At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 75mm nominal stroke by up to 30mm. This creates a usable travel window of 45-75mm, though it only decelerates the load via air cushion and does not lock the position without live air.
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