Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-75S
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-75S 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 SAUJ100X900-75S
The AirTAC SAUJ100X900-75S is a double-acting single-rod profile cylinder with an on-site extend stroke adjustment window of 75 mm. You trim the 900 mm maximum stroke down to 825 mm using the external stop screw, eliminating the need to buy a new cylinder for fine-tuning machine timing. It features a 1/2 inch port, an M20x1.5 rod thread, and 29 mm adjustable air cushions. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same bore.
This 100 mm bore delivers substantial power: 3927 N push and 3681 N pull at 0.5 MPa, peaking at 7068 N push at 0.9 MPa. For sizing, the safe working load is roughly 2356 N (about 60% of the 0.5 MPa push figure), and it can handle a vertical lift of approximately 200 kg with a 2:1 safety margin. The -S suffix means a built-in magnet is present for CMSG, DMSG, or EMSG sensors. A standard cylinder will drift on air loss; the cushion only decelerates, so use an external rod lock for held loads.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-75S Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-75S |
|---|---|
| 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 SAUJ100X900-75S
| 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 SAUJ100X900-75S Is Used
Large Press Dwell Tuning
Allows operators to dial in the exact 825-900 mm extend position on a heavy press bed without disassembling the pneumatic circuit to swap cylinders.
Pallet Stop Positioning
Adjusts the stopper location on the fly for varying pallet lengths, using the 75 mm window to fine-tune the final resting spot at the end of the line.
Heavy Lift Gate Timing
Provides a field-adjustable end position for a 200 kg vertical lift gate, ensuring soft landing via the 29 mm cushion after tweaking the stroke.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-75S the Right Cylinder?
When sizing this model, compare it against the smaller 80 mm bore (2513 N push at 0.5 MPa) or the 100 mm fixed-stroke SAU if no on-site trim is needed. Choose the SAUJ100X900-75S when your machine assembly requires field-tuning the extend stroke by up to 75 mm without buying custom parts. It supports Basic, FA, and LB mountings, and shares mounting compatibility with the AirTAC SC series only. The -S option enables CMSG/DMSG/EMSG electronic or reed sensing. Because the 900 mm stroke is long, always 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 SAUJ100X900-75S 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 nominal 900 mm extend stroke can be shortened by up to 75 mm on-site via the external stop screw, yielding a usable range of 825-900 mm. The stop sets the end position and is not a load lock.
The -S suffix indicates a built-in piston magnet for mounting CMSG, DMSG, or EMSG sensors for position detection. Note that a standard cylinder does not hold a load if air pressure drops; the 29 mm adjustable air cushion only decelerates the piston near the end of stroke. For secure load holding, you must install an external rod lock or a pilot-operated check valve.
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