Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-100
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-100 is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 850mm 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
- Stroke850 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-100
The AirTAC SAUJ100X850-100 is a double-acting, single-rod profile cylinder with an on-site extend stroke adjustment. An external stop screw lets you shorten the 850mm nominal travel by up to 100mm, yielding a usable 750-850mm window. It features a 1/2 inch port, an M20x1.5 rod thread, and 29mm adjustable air cushions at each end. The extruded aluminum profile is noticeably shorter than an ISO 15552 cylinder of the same bore.
This 100mm bore delivers serious force: 3927N push and 3681N pull at 0.5MPa, scaling to 7068N at 0.9MPa. For sizing, a safe working load is roughly 2356N (about 60% of the 0.5MPa push figure), translating to a 200kg vertical lift with a 2:1 safety margin. The external stop sets the end position but is not a load lock; you still need live air or an external rod lock to hold a load. Note this SKU lacks a magnet, so it cannot take a magnetic sensor.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-100 Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-100 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 850 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 SAUJ100X850-100
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×850 | 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 SAUJ100X850-100 Is Used
Large Press Dampening
Needs field stroke tuning to set the exact 750-850mm working stroke for pressing heavy assemblies, absorbing final position variance on-site.
Pallet Diverting
Requires adjusting the extend stop to fine-tune the pusher distance for varying pallet widths without changing the entire actuator.
Heavy Goods Stopping
Demands a high-force 100mm bore to halt large loads, using the 100mm adjust window to dial in the exact stopping plane.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-100 the Right Cylinder?
When sizing, check both neighbors: an 80mm bore gives 2513N push at 0.5MPa, while this 100mm bore hits 3927N. Choose the SAUJ over a fixed SAU when your machine assembly needs final end-position tuning of up to 100mm without buying a new actuator. Mounting options include Basic, FA flange, and LB foot, sharing compatibility with the AirTAC SC series. Because this is a non-magnetized SKU, it cannot accept CMSG or DMSG sensors. Finally, at an 850mm stroke, you must support the rod against bending and use external guides to 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 SAUJ100X850-100 FAQ
At 0.5MPa it provides 3927N push and 3681N pull. Push force increases to 5497N at 0.7MPa and 7068N at 0.9MPa, with a theoretical max of 801kgf at 1.0MPa. The external stop screw allows you to shorten the 850mm extend stroke by up to 100mm on-site, giving a 750-850mm usable window. It uses a 1/2 inch port.
The external stop screw mechanically limits the piston's extend travel to set the end position. It is not a load lock; the cylinder drifts without live air, and the 29mm air cushions only decelerate the piston near the end of stroke. For load holding, use an external rod lock or pilot-operated check valve. Also, this SKU lacks a magnet and cannot take sensors.
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