Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50S
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50S 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 SAUJ100X900-50S
The AirTAC SAUJ100X900-50S is a double-acting single-rod profile cylinder with an external stop screw. You can trim the extend stroke on-site by up to 50 mm, giving a usable stroke range of 850-900 mm. The 900 mm nominal stroke is the maximum. It features a 1/2 inch port, an M20x1.5 rod thread, and 29 mm adjustable air cushions.
This extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same bore. It delivers 3927 N push and 3681 N pull at 0.5 MPa, with a theoretical max of 801 kgf at 1.0 MPa. The built-in magnet (-S) supports CMSG, DMSG, and EMSG sensors. For sizing, the safe working load is roughly 2356 N (60% of the 0.5 MPa push), yielding a 200 kg vertical lift capacity at a 2:1 margin.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50S Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50S |
|---|---|
| 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 SAUJ100X900-50S
| 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 SAUJ100X900-50S Is Used
Large Press Dwell Adjustment
Allows on-site tuning of the extend stroke by up to 50 mm to perfect the dwell position on heavy forming presses without swapping cylinders.
Variable Length Diverters
Accommodates different package sizes on a conveyor by fine-tuning the actuator reach on the fly via the external stop screw.
Palletizer End Stops
Provides adjustable mechanical end positioning for stacking varying pallet heights, ensuring precise placement under heavy loads.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-50S the Right Cylinder?
Size this 100 mm bore against the smaller 80 mm option (2513 N push at 0.5 MPa) or step up if you exceed 801 kgf. Choose the SAUJ over a fixed SAU when you need field tuning without buying a new cylinder. The 50 mm adjust window lets you dial in the exact end position. Mounting options include Basic, FA flange, and LB foot, compatible with the AirTAC SC series. The -S suffix provides a piston magnet for electronic or reed switches. Because the stroke is 900 mm, add 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 SAUJ100X900-50S FAQ
At 0.5 MPa it provides 3927 N push and 3681 N pull. Push force is 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 900 mm nominal extend stroke can be shortened by up to 50 mm on-site using the external stop screw, yielding an 850-900 mm usable window. It uses a 1/2 inch port.
The external stop screw mechanically sets the extend end position but is not a load lock. The 29 mm adjustable air cushions only decelerate the piston near the end of travel. If air is lost or the valve is centered, the cylinder will not hold its load and the piston will drift; for secure load holding, install an external rod lock or a pilot-operated check valve.
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