
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X900-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 900mm 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 SAIJ200X900-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. The built-in rear stopper allows you to trim the nominal 900mm stroke back by up to 40mm, yielding a precise 860-900mm usable travel window for commissioning without external hardware.
This model uses a robust 40mm carbon steel piston rod and a G3/4 PT tapered port. While the rod handles high axial loads, an 900mm stroke demands an external guide to prevent side-loading damage. It includes adjustable air cushions at both ends to decelerate heavy masses, but note that the rear adjuster acts strictly as a travel stop, not a lock.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X900-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 900 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. |
| ×900 | 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 860-900mm stroke window during equipment retooling to accommodate varying large product dimensions without disassembling the pneumatic rig.
Use the 40mm adjustment range to set exact mechanical end-stops on automated assembly lines, compensating for mechanical wear over time.
The adjustable 860-900mm travel window is ideal for machinery that undergoes frequent product-size changeovers, allowing operators to fine-tune the end position without swapping cylinders or adding mechanical stops. For load-holding without live air pressure, this cylinder is insufficient; you must select a SAIL (air-released lock) or BSAI (clamp-lock) model instead.
As a dimensionally interchangeable ISO 15552 profile cylinder, it drops into standard footprints. Configuration details include a 900mm stroke, 40mm adjustment, G3/4 PT port, carbon steel rod, and no magnet. The mounting set is restricted to Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
Quick checklist
At 1.0MPa, the maximum push force is 3204kgf.
The rear adjuster screw lets you shorten the 900mm nominal stroke by up to 40mm, creating an 860-900mm usable travel window. It functions as a mechanical stop to fine-tune end positions and is not a lock; it cannot hold the load without continuous air pressure.
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