
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 550mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ160X550-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a usable travel window of 510 to 550 mm. Delivering 10053 N of push force at 0.5 MPa, this robust unit handles heavy loads with precision. The extruded aluminum barrel includes sensor grooves on both sides, though this specific configuration ships without a magnet.
Equipped with a SUS420J2 stainless steel rod (material code A) and PT tapered port threads, it provides excellent corrosion resistance and a tight pneumatic seal. The integrated air cushions at both ends deliver 50 mm of cushioning length to absorb kinetic energy, while the rear stopper screw allows exact end-position tuning during commissioning without adding external physical stops.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 550 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 | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
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. |
| ×550 | 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 510 to 550 mm end position during heavy press commissioning without swapping out the entire cylinder.
Quickly adapt the stroke end-stop on automated assembly lines when switching to a new product size or thickness.
Move heavy workpieces using 10053 N of thrust while relying on the 50 mm air cushions to smooth out the deceleration phase.
Selecting this 160 mm bore cylinder makes sense when your application requires substantial thrust—stepping down to a 125 mm bore yields only 6136 N at 0.5 MPa, whereas this model provides 10053 N. You would opt for the SAIJ adjustable-stroke variant over a fixed SAI cylinder when you need to dial in the exact end-of-stroke position during machine setup or product changeover. Because the 550 mm stroke is substantial, an external guide is recommended to prevent excessive side loads on the 40 mm rod and M36x2 thread.
When matching ISO 15552 dimensions for a replacement, verify the 160 mm bore, 550 mm stroke, 40 mm adjustment range, PT port thread, and the required mounting interface (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Remember that the rear adjuster acts only as a travel stop; it cannot hold a load without live air pressure. For secure load-holding, consider the SAIL or BSAI series instead.
Quick checklist
At an operating pressure of 0.5 MPa, this 160 mm bore cylinder generates 10053 N of push force and 9425 N of pull force. The maximum thrust is 2050 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the 550 mm nominal stroke by up to 40 mm, providing an effective travel window of 510 to 550 mm. This allows precise end-position tuning at commissioning without adding external stops.
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