Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20 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 SAUJ100X90-20
The AirTAC SAUJ100X90-20 is a double-acting single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you trim the working stroke by up to 20mm, giving a usable range of 70-90mm. The 90mm nominal stroke serves as the maximum travel. It features a 1/2 inch port, an M20x1.5 rod thread, and 29mm adjustable air cushions. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same bore.
This 100mm bore delivers serious power: 3927N push and 3681N pull at 0.5MPa, peaking at 801kgf at 1.0MPa. For sizing, a safe working load is roughly 2356N, which handles a vertical lift of about 200kg with a 2:1 margin. The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so fit an external rod lock for holding. This SKU lacks a magnet and cannot take a sensor.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20 Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20 |
|---|---|
| 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 SAUJ100X90-20
| 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 SAUJ100X90-20 Is Used
Press Fit Tuning
Allows operators to dial in the exact 70-90mm extend position for seating bearings without changing hard stops.
Variable Depth Staking
Provides adjustable end-of-stroke positioning on an assembly line where material thickness varies slightly.
End Position Clamping
Delivers 3927N of clamping force while offering a 20mm window to accommodate different workpiece heights.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X90-20 the Right Cylinder?
When sizing this unit, look at the neighboring bores: an 80mm bore gives 2513N push at 0.5MPa, while a 100mm bore yields 3927N. Choose SAUJ over a fixed SAU when your machine build requires precise field tuning of the extend end position without buying multiple cylinders. The 20mm adjust window is ideal for fine-tuning clamping or pressing depth. Mounting options include Basic, FA flange, and LB foot, matching the AirTAC SC series. Because this SKU lacks the -S magnet, it cannot accept CMSG or DMSG sensors; add -S if you need position detection. For a 90mm stroke side-load is minimal, but for any stroke over 300mm always use external guide rails.
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 SAUJ100X90-20 FAQ
At 0.5MPa it provides 3927N push and 3681N pull. Push force is 5497N at 0.7MPa and 7068N at 0.9MPa, with a theoretical max of 801kgf at 1.0MPa. The nominal 90mm extend stroke can be shortened by up to 20mm via the external stop screw, yielding a usable 70-90mm range. It uses a 1/2 inch port.
The external stop screw mechanically limits the piston extension, letting you set the exact end position on-site. This stop is not a load lock; the cylinder will drift on air loss and the 29mm air cushion only decelerates the piston near the end. For secure load holding, install an external rod lock or pilot-operated check valve.
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