Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20
The AirTAC Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20 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 SAUJ80X100-20
The AirTAC SAUJ80X100-20 is a double-acting single-rod profile cylinder with an on-site extend stroke adjustment window of 20 mm. You can trim the 100 mm nominal stroke down to 80 mm using the external stop screw. It features a 3/8" port, an M20x1.5 rod thread, and 28 mm adjustable air cushions at each end. The extruded aluminum profile barrel makes this unit shorter than an ISO 15552 cylinder of the same bore.
This 80 mm bore generates 2513 N push and 2268 N pull force at 0.5 MPa, peaking at a theoretical 513 kgf at 1.0 MPa. For sizing, the safe working load is roughly 1508 N, and it can vertically lift about 128 kg with a 2:1 safety margin. Choose this adjustable model over a fixed SAU cylinder when you need final end-position tuning without buying new hardware. Note this SKU lacks a magnet, so it cannot accept CMSG or DMSG sensors.
Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20 Technical Specifications
| Model | Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20 |
|---|---|
| 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 SAUJ80X100-20
| 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 SAUJ80X100-20 Is Used
Press Fit Dialing
Inserting bearings where the exact depth needs field tuning. The stop screw adjusts the extend end position to perfect the press fit without changing the cylinder body.
Variable Length Diverter
Routing packages of varying sizes on a line. Shorten the actuator stroke by up to 20 mm to alter the diverting arm angle for different carton dimensions.
Adjustable Stop Gate
Acting as a physical end stop for incoming pallets. Fine-tune the gate position on-site to accommodate slight pallet length variations.
Is the Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X100-20 the Right Cylinder?
When sizing this actuator, look both ways: a 63 mm bore offers 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N. The 80 mm bore hits 2513 N, making it ideal for medium-heavy loads. Select the SAUJ over a fixed SAU when your machine build requires slight extend length tweaks to dial in a process. The 20 mm adjust window lets you shorten the stroke on-site. Mounting options include Basic, FA flange, and LB foot, sharing compatibility with the AirTAC SC series. Because this specific SKU has no -S magnet, it cannot support position sensing. For strokes over 300 mm, ensure external guides handle side loads to prevent rod 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 SAUJ80X100-20 FAQ
At 0.5 MPa it provides 2513 N push and 2268 N pull force. Push force increases to 3518 N at 0.7 MPa and 4523 N at 0.9 MPa, with a theoretical max of 513 kgf at 1.0 MPa. The nominal stroke is 100 mm, but the external stop screw lets you shorten the extend stroke by up to 20 mm, giving a usable range of 80-100 mm.
No. A plain cylinder drifts when air is lost or the valve is centered; the 28 mm air cushion only decelerates the piston near the end of travel and the stop screw only sets the end position. Neither acts as a load lock. To hold a load securely, install an external rod lock or a pilot-operated check valve.
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