Airtac SAUJ100 Adjustable Cylinder SAUJ100X75-20S
The AirTAC SAUJ100 Adjustable Cylinder SAUJ100X75-20S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 75mm 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
- Stroke75 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAUJ100 Adjustable Cylinder SAUJ100X75-20S
The AirTAC SAUJ100X75-20S is a double-acting, double-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you shorten the 75 mm nominal travel by up to 20 mm, yielding a usable 55-75 mm range without buying a new actuator. It features a 1/2 inch port, an M20x1.5 rod thread, and 29 mm adjustable air cushions. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same bore.
The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG sensors. A Viton H seal option raises the operating temperature from 70 C up to 150 C.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X75-20S Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X75-20S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 75 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAUJ100 Adjustable Cylinder SAUJ100X75-20S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SAUJ100X75-20S Is Used
Press Fit Tuning
Allows operators to dial in the exact 55-75 mm extend position for seating bearings without swapping physical spacers.
Variable Diverter Gate
Provides adjustable stroke for a routing flap where package sizes change and the extend endpoint needs 20 mm of trim.
Carton Sealing Head
Fine-tunes the upper sealing jaw descent on-site to accommodate different box heights within the 75 mm travel limit.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X75-20S the Right Cylinder?
When sizing this actuator, compare it against the 80 mm and 100 mm bores. Choose the SAUJ over a fixed SAU when your machine assembly requires field tuning of the extend end position within that 55-75 mm window. Mounting options include Basic, FA flange, and LB foot styles, sharing compatibility with the AirTAC SC series. Because the -S suffix is present, you can directly mount CMSG, DMSG, or EMSG switches for end-of-stroke detection. Since the stroke is under 300 mm, side-load guiding demands are lower, but always guide the load externally to prevent rod binding.
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 SAUJ100X75-20S FAQ
The 75 mm nominal extend stroke can be shortened by up to 20 mm via the external stop screw, giving a 55-75 mm usable range. It uses a 1/2 inch port and 29 mm adjustable cushions.
The -S suffix means a piston magnet is installed, allowing direct mounting of CMSG, DMSG, or EMSG sensors for position detection. The stop screw only sets the extend end position; it is not a load lock. The cylinder does not hold a load on air loss, and the air cushion only decelerates the piston near stroke end. For held loads, use an external rod lock or pilot-operated check valve.
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