Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-40
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-40 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 SAUJ100X900-40
The AirTAC SAUJ100X900-40 is a double-acting, single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you trim the 900 mm nominal stroke by up to 40 mm, yielding a usable range of 860-900 mm. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same 100 mm bore. It features a 1/2 inch port, an M20x1.5 rod thread, and 29 mm adjustable air cushions.
This bore delivers substantial force: 3927 N push and 3681 N pull at 0.5 MPa, scaling to 7068 N at 0.9 MPa. A practical computed insight sets the safe working load at roughly 2356 N, which equates to a 200 kg vertical lift with a 2:1 safety margin. Note this SKU lacks the -S magnet, so it cannot accept CMSG or DMSG sensors. For high-heat environments up to 150 C, Viton H seals are available.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-40 Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-40 |
|---|---|
| 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 SAUJ100X900-40
| 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 SAUJ100X900-40 Is Used
Large Press Tonnage
Provides 7068 N of extend force at 0.9 MPa for heavy pressing operations, with a 40 mm stop screw window to dial in the exact crush depth on-site.
Pallet Diverting
Handles large pallets over a 860-900 mm reach, allowing technicians to shorten the extend stroke by up to 40 mm to accommodate varying load widths.
Heavy Load Push-Off
Pushes heavy containers off a roller bed using a 100 mm bore, relying on the 29 mm adjustable cushions to decelerate the massive 900 mm stroke smoothly.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X900-40 the Right Cylinder?
When sizing this actuator, compare it against the 80 mm bore (2513 N push at 0.5 MPa) and the 100 mm bore (3927 N push at 0.5 MPa) to match your force requirements. Choose the SAUJ over a fixed SAU when your machine assembly requires field-tuning of the extend end position without buying a new cylinder. The 40 mm adjust window is ideal for final mechanical timing. Mounting options include Basic, FA flange, and LB foot styles, compatible with the AirTAC SC series. Because this is a 900 mm stroke, you must use external guides to prevent rod bending and manage side loads. Finally, this specific SKU has no -S magnet and cannot host 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 SAUJ100X900-40 FAQ
This 100 mm bore cylinder has a 900 mm maximum stroke that can be shortened by up to 40 mm on-site (usable range 860-900 mm). It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 7068 N push at 0.9 MPa. The theoretical maximum force is 801 kgf at 1.0 MPa. It uses a 1/2 inch port and operates at 30-800 mm/s.
No. A plain SAUJ cylinder does not hold its load on air loss or when the valve is centered, as the piston will drift. The external stop screw only sets the extend end position, and the air cushions merely decelerate the piston near stroke end. To secure a load, you must add an external rod lock or a pilot-operated check valve.
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