Airtac SAUJ100 Adjustable Cylinder SAUJ100X85-30S
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X85-30S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 85mm 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
- Stroke85 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAUJ100 Adjustable Cylinder SAUJ100X85-30S
The AirTAC SAUJ100X85-30S is a double-acting single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you shorten the 85mm nominal stroke by up to 30mm, yielding a usable 55-85mm window. It features a 1/2 inch port, an M20x1.5 rod thread, and 29mm adjustable air cushions.
This bore delivers substantial power: 3927N push and 3681N pull at 0.5MPa. A practical computed insight sets the safe working load near 2356N, ideal for a vertical lift of roughly 200kg with a 2:1 margin. The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore. The built-in -S magnet supports CMSG, DMSG, and EMSG sensors.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X85-30S Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X85-30S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 85 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 SAUJ100X85-30S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×85 | 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 SAUJ100X85-30S Is Used
Press Fit Tuning
Allows operators to dial in the exact 55-85mm extend position for inserting bearings without changing the fixture height.
Variable Depth Sealing
Adjusts the end stop on the fly to accommodate different box depths on a packaging line.
Pallet Positioning
Trims the extend stroke to align pallets of varying widths prior to stretch wrapping.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X85-30S the Right Cylinder?
Size this 100mm bore against its neighbours: the 80mm yields 2513N push at 0.5MPa, while this unit provides 3927N. Choose SAUJ over a fixed SAU when your machinery requires field tuning of the extend end position without buying multiple cylinders. Mounting options include Basic, FA flange, and LB foot, sharing compatibility with the AirTAC SC series. The -S suffix ensures readiness for electronic or reed switches. For strokes at or exceeding 300mm, guide side loads externally to prevent rod wear.
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 SAUJ100X85-30S 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 85mm nominal extend stroke can be shortened by up to 30mm on-site via the stop screw, giving a 55-85mm usable window.
The external stop screw mechanically sets the extend end position but is not a load lock. A plain cylinder drifts on air loss; the 29mm air cushion only decelerates near the end. For held loads, install an external rod lock or pilot-operated check valve. The -S magnet enables CMSG/DMSG/EMSG sensors.
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