
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X400-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 400mm 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 SAIJ200X400-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty motion tasks. The integrated -10 mm adjustment mechanism allows you to fine-tune the retract end-position, creating a usable travel window between 390 mm and 400 mm without adding external stops.
This extruded aluminum profile barrel includes a magnet for electronic DMSE and reed CMSE switches, utilizing dual sensor grooves on both sides for flexible mounting. The robust 40 mm carbon steel rod with an M36x2 thread handles significant side loads, while PT tapered port threads ensure a rigid pneumatic connection. The rear adjuster acts purely as a travel stop for deceleration and setup, not a load-holding lock.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 400 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. |
| ×400 | 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 390-400 mm retract end-stop during heavy press commissioning to accommodate material thickness variations without external spacers.
Adjust the stroke window on the fly when switching a high-force assembly line to a new product size, avoiding the downtime of physically swapping cylinders.
The adjustable stroke is highly beneficial during machine commissioning or product changeovers, allowing you to dial in the exact 390-400 mm end-stop on the fly instead of physically swapping out a fixed-stroke SAI cylinder. Because the 400 mm stroke is substantial, always use an external guide to support the load and prevent excessive side-loading on the 40 mm rod.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 400 mm nominal stroke, 10 mm adjustment range, PT G3/4 port, and the -S magnet. Note that SAIJ supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. If your setup requires load-holding without continuous live air pressure, this cylinder will not suffice; consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock, or an external rod lock.
Quick checklist
At its maximum 1.0 MPa pressure, it delivers up to 3204 kgf.
A rear adjusting screw lets you shorten the effective stroke by up to 10 mm, providing a usable travel window of 390 to 400 mm. This stopper sets the end position and deceleration point but does not lock or hold the load without live air pressure.
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