
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X45-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 45mm 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 SAIJ200X45-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. This yields a highly versatile 5-45 mm usable travel window, allowing exact end-position tuning without swapping hardware.
This unit includes a magnetic piston (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. It uses a robust 40 mm carbon steel rod with an M36x2 thread, and its extruded aluminum barrel incorporates sensor grooves on both sides. The rear stopper sets the travel end but does not lock the load without live air pressure.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X45-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 45 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. |
| ×45 | 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 5-45 mm bottoming position on a high-force press during setup, using the rear screw to adjust the crush depth without changing the cylinder.
Quickly adapt a heavy-duty end-stop on a packaging line when product dimensions change, utilizing the 40 mm adjustment range for rapid format transitions.
Choose this 200 mm bore when substantial thrust is required; stepping down to a 160 mm bore drops the 0.5 MPa push force to 10053 N. The adjustable 5-45 mm window is perfect for short-stroke setups needing exact commissioning fine-tune or variable end-stops, avoiding the need to bolt on external stops. For load-holding without live pressure, a plain SAIJ is insufficient—consider the SAIL or BSAI locking variants.
To replace an ISO 15552 cylinder, match the 200 mm bore, 45 mm stroke, 40 mm adjustment, PT tapered port thread, and -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 40 mm carbon steel rod is thick, it handles side loads well, but even at this short 45 mm stroke, external guides are recommended for heavy loads.
Quick checklist
The rear adjuster acts as a stopper that trims the effective travel. For this SAIJ200X45-40-S, the 45 mm nominal stroke can be reduced by up to 40 mm, creating a 5-45 mm usable travel window for precise end-position control.
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