The AirTAC Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X275-50S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 275mm stroke, 3/8" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
The AirTAC SAUJ80X275-50S is a double-acting, single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you shorten the 275 mm nominal travel by up to 50 mm, yielding a usable 225-275 mm window without buying a new actuator. The extruded aluminum profile barrel makes it shorter than an ISO 15552 unit of the same bore. This 80 mm bore features a 3/8" port, a 25 mm rod, and 28 mm adjustable air cushions.
Force output is substantial: 2513 N push and 2268 N pull at 0.5 MPa, scaling to 3518 N at 0.7 MPa and 4523 N at 0.9 MPa. For sizing, the safe working load is roughly 1508 N (about 60% of the 0.5 MPa push figure), and it can vertically lift around 128 kg with a 2:1 safety margin. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG position switches.
| Model | Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X275-50S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 275 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 28 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×275 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
Dial in the exact 225-275 mm extend position on-site to press components of varying heights without retooling the entire fixture.
Fine-tune the gate stroke by up to 50 mm to accommodate different package sizes on the fly, ensuring precise routing on the line.
Set the exact stopping height for varying pallet loads, using the external screw to adjust the extend endpoint quickly.
Choose this 80 mm bore if you need 2513 N push at 0.5 MPa; step down to a 63 mm bore (1559 N) for lighter loads, or up to a 100 mm bore (3927 N) for heavier demands. The SAUJ80X275-50S is ideal when you need field stroke tuning, replacing a fixed-length SAU cylinder plus external stop hardware. The 50 mm adjust window lets you dial in the exact end position on-site. Basic, FA flange, and LB foot mounts are available (compatible with the AirTAC SC series). Because the stroke is 275 mm, ensure external guidance to prevent side-load binding. Operating pressure is 0.15-1.0 MPa.
Quick checklist
At 0.5 MPa it provides 2513 N push and 2268 N pull. Push force is 3518 N at 0.7 MPa, 4523 N at 0.9 MPa, and 513 kgf max at 1.0 MPa. The 275 mm nominal extend stroke can be shortened by up to 50 mm via the external stop screw, giving a 225-275 mm working window.
The -S suffix means it has a built-in piston magnet for CMSG, DMSG, or EMSG electronic or reed switches. Note that the stop screw and air cushions only set position and decelerate; they do not hold the load. For dead-load holding on air loss, use an external rod lock or pilot-operated check valve.
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