
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-50S 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 SAIJ160X550-50-S is a double-acting ISO 15552 profile cylinder featuring a rear mechanical adjuster that trims the effective stroke. With a 550 mm nominal stroke and a 50 mm adjustment range, it provides a usable travel window of 500 to 550 mm. This allows precise end-position tuning during commissioning without swapping hardware. The 160 mm bore delivers substantial thrust, pushing 14074 N at 0.7 MPa.
This variant includes a SUS304 stainless steel rod for superior corrosion resistance and operates at 30 to 500 mm/s. Equipped with a magnet (-S), it supports AirTAC CMSE reed and DMSE electronic sensors housed within the dual-side barrel grooves. The rear stopper sets the retract position, but it does not lock the load without live air pressure.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-50S |
|---|---|
| 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.
Fine-tune the 500 to 550 mm travel window during heavy equipment commissioning to achieve exact positioning without adding external stops.
Dial in the retract end position by up to 50 mm to accommodate different package sizes on a packaging line quickly.
Leverage the 14074 N push force at 0.7 MPa alongside the adjustable stroke to set precise pressing depths on the factory floor.
Select this 160 mm bore actuator when an application requires high force combined with variable end stops, such as product-size changeovers on a line. If 10053 N of push force at 0.5 MPa is sufficient, stepping down to a 125 mm bore saves space; conversely, moving to a 200 mm bore yields 15708 N at 0.5 MPa for heavier loads. For fixed-travel needs without tuning, the standard SAI cylinder is a simpler alternative.
Because the 550 mm stroke is long, an external guide is recommended to manage side loads and protect the M36x2 rod thread. To match this ISO 15552 footprint exactly, specify the 160 mm bore, 550 mm stroke, 50 mm adjustment, PT tapered ports, and the -S magnet. For load-holding without continuous air, use an external rod lock or explore the SAIL or BSAI series instead of relying on the adjuster.
Quick checklist
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective stroke by up to 50 mm. This creates a usable travel window of 500 to 550 mm for fine-tuning the end position without replacing the cylinder.
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides a push force of 14074 N and a pull force of 9425 N. It can deliver a maximum push force of 18095 N at 0.9 MPa.
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