
The AirTAC Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-40S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 100mm 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 SAUJ80X100-40S is a double-acting single-rod profile cylinder with an on-site extend stroke adjustment window of 40 mm. You can trim the nominal 100 mm stroke down to 60 mm using the external stop screw. The extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore. It features a 3/8 inch port, an M20x1.5 rod thread, and 28 mm adjustable air cushions.
This 80 mm bore delivers a push force of 2513 N and pull of 2268 N at 0.5 MPa. A safe working load is roughly 1508 N, allowing a vertical lift of about 128 kg with a 2:1 margin. The -S suffix means a built-in magnet is present for CMSG, DMSG, or EMSG sensors. Choose Viton H seals to raise the operating temperature from 70 C up to 150 C.
| Model | Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-40S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 100 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. |
| ×100 | 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.
Needs field stroke tuning to accommodate varying bearing thicknesses without reordering cylinders.
Requires on-site extend adjustment to alter package routing distances on the fly.
Demands precise end-position trimming for different box heights using the stop screw.
When sizing this cylinder, look at both neighbors: the 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore offers 3927 N. Pick the SAUJ80X100-40S when you need the 2513 N push force but your machine design requires field tuning of the extend position within a 40 mm window. This adjustable stop screw prevents the cost and delay of ordering a custom fixed-stroke SAU cylinder. Mounting options include Basic, FA flange, and LB foot, compatible with the AirTAC SC series. The -S magnet allows electronic or reed sensing. Since the 100 mm stroke is short, side-load guides are less critical, but always guide the load externally for rigid stability.
Quick checklist
At 0.5 MPa it pushes 2513 N and pulls 2268 N. Push is 3518 N at 0.7 MPa, 4523 N at 0.9 MPa, and 513 kgf max at 1.0 MPa. The 3/8 inch ported bore has a nominal 100 mm stroke. The external stop screw allows you to shorten the extend stroke by up to 40 mm on-site, giving a usable range of 60 to 100 mm.
The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG sensors. A plain cylinder does not hold load on air loss; the piston drifts and the 28 mm cushion only decelerates near the end. The stop screw sets the end position but is not a lock. For a held load use an external rod lock or pilot-operated check valve.
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