Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-30
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-30 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 SAUJ100X850-30
The AirTAC SAUJ100X850-30 is a double-acting, single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you shorten the 850mm nominal travel by up to 30mm, yielding a usable range of 820-850mm. It features a 100mm bore, a 25mm piston rod, an M20x1.5 rod thread, and a 1/2 inch port. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same bore.
This bore delivers substantial force: 3927N push and 3681N pull at 0.5MPa, scaling to 7068N at 0.9MPa. A practical computed insight sets the safe working load around 2356N (60% of the 0.5MPa push), translating to a 200kg vertical lift with a 2:1 margin. Standard adjustable air cushions are 29mm. Note this SKU lacks a magnet, so it cannot take a sensor. The stop screw sets end position only; it is not a load lock.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-30 Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-30 |
|---|---|
| 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 SAUJ100X850-30
| 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 SAUJ100X850-30 Is Used
Press Fit Tuning
Allows operators to dial in the exact 820-850mm extend position on-site for pressing bearings without remachining hard stops.
Transfer Arm Adjustment
Perfect for long-stroke transfer arms where the final part hand-off distance varies slightly between product families.
Pallet Positioning
Provides field adjustment for large pallet stops, ensuring precise 850mm extension that can be trimmed by 30mm as needed.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-30 the Right Cylinder?
Size both ways: dropping to an 80mm bore reduces 0.5MPa push to 2513N, while this 100mm unit provides 3927N. Choose SAUJ over a fixed SAU when your machine assembly needs final travel tuning without machining a custom external stop. The 30mm adjust window is ideal for fine-tuning. Mounting options include Basic, FA flange, and LB foot, compatible with the AirTAC SC series. Because this is a non-magnet SKU, you cannot mount CMSG or DMSG sensors. For the 850mm stroke, use external guides to prevent rod bending and 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 SAUJ100X850-30 FAQ
At 0.5MPa it provides 3927N push and 3681N pull. Push increases to 5497N at 0.7MPa and 7068N at 0.9MPa, with a theoretical max of 801kgf at 1.0MPa. The 850mm extend stroke can be shortened by up to 30mm via the external stop screw, giving a usable range of 820-850mm. It uses a 1/2 inch port.
No. This SKU lacks a magnet (-S), so it cannot take magnetic sensors. Furthermore, the stop screw and air cushions only set position and decelerate; they do not lock. On air loss, the piston drifts. For vertical loads, install an external rod lock or pilot-operated check valve.
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