Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20S
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 90mm 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
- Stroke90 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20S
The AirTAC SAUJ100X90-20S is a double-acting single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you shorten the 90 mm nominal stroke by up to 20 mm, yielding a usable working range of 70-90 mm. The extruded aluminum 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 delivers substantial power: 3927 N push and 3681 N pull at 0.5 MPa, scaling to 7068 N push at 0.9 MPa. A practical computed insight sets the safe working load around 2356 N, which equates to a 200 kg vertical lift with a 2:1 safety margin. The -S suffix means a built-in magnet is present for CMSG, DMSG, or EMSG position sensing.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20S Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 90 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 SAUJ100X90-20S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×90 | 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 SAUJ100X90-20S Is Used
Press Fit Tuning
Allows operators to dial in the exact 70-90 mm extend position for seating bearings without changing hard stops.
Variable Height Stops
Adjusts the extend endpoint on the fly to accommodate different pallet thicknesses in packaging lines.
Calibrated Clamping Force
Fine-tunes the final 20 mm of stroke to precisely control clamping contact on delicate workpieces.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20S the Right Cylinder?
Size this 100 mm bore against the 80 mm neighbor: the 80 mm yields 2513 N push at 0.5 MPa, while this 100 mm hits 3927 N. If 3927 N is excessive, step down. Choose the SAUJ over a fixed SAU when you need final extend position tuning at the machine without buying custom cylinders. The 20 mm adjust window is ideal for fine-tuning clamping or pressing endpoints. Mounting options include Basic, FA flange, and LB foot, sharing compatibility with the AirTAC SC series. Because the -S magnet is present, you can directly mount sensors. For any stroke over 300 mm, always use external guide rails to prevent side-load wear.
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 SAUJ100X90-20S FAQ
At 0.5 MPa it provides 3927 N push and 3681 N pull force, scaling to 5497 N at 0.7 MPa and 7068 N at 0.9 MPa. The theoretical max is 801 kgf at 1.0 MPa. The 90 mm nominal extend stroke can be shortened by up to 20 mm via the external stop screw, giving a 70-90 mm working range.
The external stop screw mechanically sets the extend end position, but it is not a load lock. The cylinder does not hold load on air loss; the piston will drift and the 29 mm air cushion only decelerates near the end. For secure load holding, use an external rod lock or pilot-operated check valve.
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