
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX325-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 325mm 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.
Because this specific SKU carries a 50mm adjustment code, you can dial the 325mm nominal stroke back to anywhere within a 275-325mm usable travel window during commissioning. This negates the need to physically swap out the entire actuator when fine-tuning end positions.
This large-bore unit features a robust 40mm piston rod with an M36x2 thread and a SUS304 stainless steel rod material for superior corrosion resistance. It operates at 30-500mm/s and includes variable air cushions at both ends to decelerate heavy loads. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing for straightforward position feedback if a magnet is specified later.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 325 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | — |
| Max (@1.0 MPa) | 1922 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. |
|---|---|
| 160 | Bore size in mm. |
| ×325 | 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 275-325mm end-stop position for heavy pressing operations without machining new spacer blocks.
Quickly adjust the retract distance on a packaging line when switching to different pallet or product heights.
Securely move heavy structural components into place, relying on the 40mm SUS304 rod for robust, corrosion-free operation.
The adjustable-stroke mechanism is chosen over a fixed SAI cylinder when a production line requires frequent product-size changeovers, allowing operators to reset the retract end-position rapidly without installing external stops. To match this exact configuration for an ISO 15552 replacement, specify the 325mm stroke, 50mm adjustment range, PT tapered port thread, and the SUS304 (B) rod material.
Because this model features a 325mm stroke, the extended 40mm rod is subject to increased bending moments under side loads; an external guide rail should be incorporated to prevent premature seal wear. Furthermore, the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure. For genuine load-holding requirements without continuous air supply, consider an AirTAC SAIL or BSAI series cylinder instead.
Quick checklist
At 0.9 MPa, the push force increases to 18095N.
The rear adjusting screw acts as an external stopper that lets you mechanically shorten the 325mm nominal stroke by up to 50mm, providing a usable travel window of 275-325mm. It only sets the end position and does not lock the load without live air pressure.
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