Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50 is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 900mm stroke, 1/2" 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.
- BoreØ100 mm
- Stroke900 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50
The AirTAC SAUJ100X900-50 is a double-acting, single-rod profile cylinder with a 900 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable working range of 850-900 mm without buying a new actuator. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same bore. It features a 1/2 inch port, an M20x1.5 rod thread, and 29 mm adjustable air cushions.
This 100 mm bore generates 3927 N push and 3681 N pull force at 0.5 MPa, peaking at 7068 N push at 0.9 MPa. For sizing, a safe working load is roughly 2356 N (about 60% of the 0.5 MPa push figure), and it can vertically lift around 200 kg with a 2:1 safety margin. The stop screw strictly sets the end position; it is not a load lock. This SKU lacks a magnet, so it cannot take a magnetic sensor.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50 Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 900 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| 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, 29 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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 SAUJ100 Adjustable Cylinder SAUJ100X900-50 Is Used
Large Press Dwell Adjustment
Tuning the exact bottoming position of a 900 mm press stroke where material thickness varies, using the 50 mm stop screw window to set the dwell point.
Long-Transfer Pusher Setup
Feeding parts on a long conveyor where the final push distance needs 850-900 mm of travel, adjusted mechanically at the machine without reprogramming valves.
Heavy Pallet Positioning
Shifting heavy pallets into a test fixture, relying on the 100 mm bore for high force and tweaking the extend end position to match pallet width variations.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50 the Right Cylinder?
When sizing this actuator, compare it both ways: dropping to an 80 mm bore reduces the 0.5 MPa push force to 2513 N, while stepping up is impossible as 100 mm is the largest available. Choose this SAUJ model over a fixed SAU when your machine assembly requires precise 850-900 mm extend length tuning on-site. Mounting options include Basic, FA flange, and LB foot styles, compatible with the AirTAC SC series. Because this is a non-magnetized SKU, it cannot accept CMSG or DMSG sensors. For the 900 mm stroke, you must use external guides to prevent rod bending and manage side loads.
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 SAUJ100 Adjustable Cylinder SAUJ100X900-50 FAQ
At 0.5 MPa it provides 3927 N push and 3681 N pull force. Push rises to 5497 N at 0.7 MPa and 7068 N at 0.9 MPa, with a theoretical max of 801 kgf at 1.0 MPa. The external stop screw allows you to shorten the 900 mm extend stroke by up to 50 mm on-site, giving a usable range of 850-900 mm.
No to both. A plain cylinder drifts on air loss or when the valve is centered, as the 29 mm air cushion only decelerates near the end of travel and acts as no brake. For holding a load, use an external rod lock or pilot-operated check valve. Additionally, this SKU lacks a magnet, so it cannot accept magnetic switches.
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