Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-20
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-20 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 SAUJ100X900-20
The AirTAC SAUJ100X900-20 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 20 mm, giving a usable range of 880-900 mm. It features a 1/2" port, an M20x1.5 rod thread, and 29 mm adjustable air cushions.
This 100 mm bore generates 3927 N push and 3681 N pull at 0.5 MPa. The computed safe working load is roughly 2356 N, translating to a 200 kg vertical lift with a 2:1 safety margin. The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore, and high-temp Viton H seals can extend operation to 150 C.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-20 Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-20 |
|---|---|
| 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 SAUJ100X900-20
| 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 SAUJ100X900-20 Is Used
Long-Reach Press Tending
Handles heavy 200 kg vertical press loads while the 20 mm stop screw fine-tunes the exact unload position at full 900 mm extension.
Pallet Diverting Gate
Provides robust 3927 N push force for large pallets, allowing field adjustment of the diverting stroke to accommodate varying pallet widths.
Heavy Shelving Insertion
Pushes heavy containers deep into storage racks, using the external stop to dial in precise insertion depth without re-engineering the fixture.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-20 the Right Cylinder?
Size this 100 mm bore against the 80 mm neighbor: 80 mm yields 2513 N push at 0.5 MPa, while this 100 mm unit delivers 3927 N, so step up if you exceed 200 kg vertical lifts. Choose the SAUJ over a fixed SAU when you need final end-position tuning without buying a new cylinder. The 20 mm adjust window is set via the external stop screw. Mounting options include Basic, FA flange, and LB foot, matching the AirTAC SC series. Since this is a 900 mm stroke, external guides are strongly recommended to prevent rod bending and manage side loads. This SKU lacks the -S magnet, so it cannot accept CMSG or DMSG sensors.
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 SAUJ100X900-20 FAQ
At 0.5 MPa it provides 3927 N push and 3681 N pull. Push force is 5497 N at 0.7 MPa, 7068 N at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. The nominal 900 mm extend stroke can be shortened by up to 20 mm on-site using the external stop screw, yielding a usable 880-900 mm range.
No. A plain cylinder drifts on air loss, and the 29 mm air cushion only decelerates near stroke end—it is not a load lock. Use an external rod lock or pilot-operated check valve for holding. Additionally, this SKU lacks the -S magnet, so it cannot accept magnetic sensors.
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