Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20S
The AirTAC Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20S 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.
- BoreØ80 mm
- Stroke100 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20S
The AirTAC SAUJ80X100-20S is a double-acting single-rod profile cylinder with an on-site stroke adjustment window. An external stop screw lets you trim the extend stroke by up to 20 mm, yielding a usable working stroke of 80-100 mm. The 100 mm nominal length serves strictly as the maximum travel. It features a 3/8" port, an M20x1.5 rod thread, and 28 mm adjustable air cushions.
This extruded aluminum profile body is purposefully shorter than an ISO 15552 cylinder of the same bore, saving machine space without losing power. At 0.5 MPa it provides 2513 N push and 2268 N pull force. For sizing, a safe working load is roughly 1508 N (about 60% of the 0.5 MPa push), 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 sensors.
Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20S Technical Specifications
| Model | Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20S |
|---|---|
| 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.
Theoretical Output Force (Ø80mm)
| 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.
Model Code: Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20S
| 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.
Where the Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20S Is Used
Press Fit Calibration
Dialing in the exact 80-100 mm extend position on-site to seat bearings without overstressing the housing.
Variable Length Diverter
Adjusting the extend stop by up to 20 mm to shift product routing arms for mixed carton sizes on a packaging line.
Pallet Stop Tuning
Fine-tuning the end position to accommodate slight pallet height variances during automated loading.
Is the Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20S the Right Cylinder?
When sizing this 80 mm bore actuator, compare it against the adjacent 63 mm and 100 mm options. The 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore provides 3927 N at the same pressure, letting you step up or down based on exact force needs. Choose this SAUJ model over a fixed-stroke SAU when your assembly requires final end-position tuning of up to 20 mm without machining custom spacers. Mounting options include Basic, FA flange, and LB foot, with physical mounting compatibility limited to the AirTAC SC series. The included -S magnet supports reed or electronic switches. For any stroke length over 300 mm, always use external guide rails to prevent side-load wear. Operating speed spans 30-800 mm/s.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB — same as SC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20S FAQ
At 0.5 MPa this 80 mm bore cylinder provides 2513 N push and 2268 N pull force. Push output rises to 3518 N at 0.7 MPa, 4523 N at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa. The external stop screw shortens the extend stroke by up to 20 mm, giving an 80-100 mm usable range. The 3/8" port and 28 mm cushions are fixed by the bore.
The external stop screw mechanically limits the piston's extend travel, letting you set the exact end position on-site. This stop only sets position; it is not a load lock. The -S suffix means the cylinder has a built-in piston magnet for CMSG, DMSG, or EMSG sensors. If air pressure drops, the piston will drift, so use an external rod lock for load holding.
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