
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X300-30S 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-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 270-300 mm. It delivers immense thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa, making it suitable for heavy-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant includes a magnet for position feedback.
The rear adjustment screw allows operators to fine-tune the retract end position during commissioning without adding external stops or swapping the cylinder. It is important to note that this adjuster acts purely as a travel stop and does not lock the load without live air; for true load-holding without pressure, consider the SAIL or BSAI series. The standard carbon steel rod and M36x2 thread provide robust load bearing, but with a 300 mm stroke, an external guide is recommended to manage side loads.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-30S |
|---|---|
| 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.
Dial in the exact 270-300 mm retract position during heavy press setup without installing external mechanical stops.
Quickly adjust the stroke window on a conveyor diverter to accommodate different large pallet sizes on the fly.
Set precise end-of-stroke limits for heavy automated assembly jigs, ensuring components meet perfectly under high force.
If you need less force, stepping down to a 160 mm bore yields 10053 N, while moving up is only possible via custom non-standard strokes since 300 mm is the maximum standard stroke for this bore. The adjustable stroke is chosen over a fixed SAI cylinder when a machine requires variable end-stops for product size changeovers.
This configuration includes PT tapered ports (G3/4), a standard carbon steel rod, and a magnet (-S) compatible with AirTAC CMSE reed and DMSE electronic sensors. It utilizes a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552. Remember that the rear adjuster only sets the travel end; it cannot hold a load without continuous air pressure.
Quick checklist
At the maximum operating pressure of 1.0 MPa, it delivers up to 3204 kgf.
The rear adjuster allows you to shorten the effective stroke by up to 30 mm, providing a usable travel window of 270-300 mm. The adjuster acts as a mechanical stop to fine-tune the end position and does not function as a lock or brake.
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