
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X300-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 300mm 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 SAIJ200X300-30 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 270-300 mm usable travel window, allowing you to dial back the 300 mm nominal stroke by up to 30 mm.
This extruded aluminum profile cylinder includes variable air cushions at both ends and features sensor grooves on both sides for CMSE reed or DMSE solid-state switches. The rear adjuster functions purely as a mechanical stop to fine-tune end positions during commissioning without adding external stops; it does not lock the load. For load-holding without live air pressure, consider the SAIL or BSAI series.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 300 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. |
| ×300 | 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.
Fine-tune the exact bottoming position of a high-tonnage press during setup, using the 30 mm rear stopper to adjust the 300 mm stroke without replacing the cylinder.
Adjust the retract end-position on a heavy-duty diverter arm by up to 30 mm to accommodate varying package sizes on a packaging line.
Secure massive workpieces on a machining line, providing 15708 N of clamping force at 0.5 MPa while allowing precise end-stop calibration.
Select this 200 mm bore cylinder when your application requires massive thrust, generating 21991 N at 0.7 MPa, alongside precise retract-position tuning. If you need less force, stepping down to a 160 mm bore yields 10053 N at 0.5 MPa. The adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers, avoiding the need to physically swap cylinders.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 300 mm stroke, 30 mm adjustment, PT port thread, and standard carbon steel rod. Because the stroke is 300 mm, the 40 mm rod and M36x2 thread provide high rigidity, but an external guide is recommended to prevent side-loading damage on long unsupported travels. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Quick checklist
At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster acts as a mechanical stop that shortens the effective travel. For this 300 mm stroke model, you can trim the retract position back by up to 30 mm, creating a 270-300 mm usable window. It does not lock the load without live air.
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