
The AirTAC Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X175-40S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 175mm 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 SAUJ80X175-40S is a double-acting, single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you trim the working stroke by up to 40 mm, giving a usable extension range of 135 to 175 mm. The 175 mm nominal stroke serves as the maximum travel. It features a 3/8" port, an M20x1.5 rod thread, and 28 mm adjustable air cushions at both ends. The -S suffix means a piston magnet is factory-installed for CMSG, DMSG, or EMSG position switches.
This extruded aluminum profile body is notably shorter than an ISO 15552 cylinder of the same 80 mm bore, saving machine space without losing power. It delivers 2513 N push and 2268 N pull force at 0.5 MPa, climbing to 4523 N push 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. If your environment exceeds the standard -20 to +70 C range, Viton H seals extend operation to 150 C.
| Model | Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X175-40S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 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. |
| ×175 | 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.
Allows operators to dial in the exact 135-175 mm extend position for inserting bearings without changing fixed hard stops between product variants.
Adjusts the extend stroke on-site to press container lids at different heights, ensuring a perfect seal across multiple package sizes.
Provides a field-tunable end position for diverter arms handling mixed pallet heights, preventing over-travel damage during transitions.
Select this 80 mm bore if you need 2513 N push at 0.5 MPa but find a 63 mm bore (1559 N) slightly underpowered; step down to 63 mm if 1559 N is sufficient, or up to 100 mm (3927 N) for heavier payloads. Choose the SAUJ over a fixed-stroke SAU when your assembly requires minor on-site stroke tuning up to 40 mm without machining external hard stops. The external stop screw sets the end position but is not a load lock; for dead-pilot or air-loss holding, add an external rod lock or pilot-operated check valve. Basic, FA flange, and LB foot mountings are available, sharing compatibility with the AirTAC SC series. The -S magnet supports CMSG/DMSG/EMSG sensors. For strokes at or exceeding 300 mm, ensure external guide rails to prevent side-load wear.
Quick checklist
At 0.5 MPa it provides 2513 N push and 2268 N pull; at 0.7 MPa it pushes 3518 N, and 4523 N at 0.9 MPa. The theoretical max is 513 kgf at 1.0 MPa. The 175 mm nominal stroke is the maximum, and the external stop screw lets you shorten the extend stroke by up to 40 mm on-site, yielding a 135-175 mm usable range. It uses a 3/8" port.
The -S suffix indicates a built-in piston magnet for mounting CMSG, DMSG, or EMSG electronic or reed switches. The cylinder is double-acting single-rod; the adjustable stop screw only sets the end position and the air cushions only decelerate. It does not hold the load on air loss, so you must use an external rod lock or pilot-operated check valve for secure load holding.
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