Airtac SAUJ100 Adjustable Cylinder SAUJ100X70-20S
The AirTAC SAUJ100 Adjustable Cylinder SAUJ100X70-20S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 70mm 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
- Stroke70 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 SAUJ100X70-20S
The AirTAC SAUJ100X70-20S is a double-acting, double-rod profile cylinder with an external stop screw. You can shorten the extend stroke on-site by up to 20 mm, giving a usable working stroke of 50 to 70 mm for exact machinery positioning. It features a 1/2 inch port, an M20x1.5 rod thread, and 29 mm adjustable air cushions at each end.
The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore. The -S suffix means a piston magnet is installed for CMSG, DMSG, or EMSG sensors.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X70-20S Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X70-20S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 70 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 SAUJ100X70-20S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×70 | 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 SAUJ100X70-20S Is Used
Press Fit Tuning
Allows operators to dial in the exact 50 to 70 mm extend position for inserting bearings without re-machining hard stops.
Variable Depth Sealing
Adjusts the extend stroke on packaging lines to accommodate different box depths on the fly using the external screw.
Mold Pin Positioning
Fine-tunes the extend endpoint in molding machinery to set precise mold pin heights for varying material thicknesses.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X70-20S the Right Cylinder?
When sizing this actuator, look at the neighboring bores. Choose the SAUJ over a fixed SAU when your assembly requires minor field adjustments to the extend end position without buying new hardware. The 20 mm stop screw window is ideal for fine-tuning. Mounting options include Basic, FA flange, and LB foot, sharing compatibility with the AirTAC SC series. The -S magnet allows electronic or reed switch placement. For strokes over 300 mm, guide the load externally to prevent side-load 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 SAUJ100X70-20S FAQ
Push force is 5497 N at 0.7 MPa and 7068 N at 0.9 MPa, with a theoretical max of 801 kgf at 1.0 MPa. The nominal 70 mm extend stroke can be shortened by up to 20 mm via the external stop screw, yielding a 50 to 70 mm working window. It uses a 1/2 inch port.
The -S suffix indicates a built-in piston magnet for installing CMSG, DMSG, or EMSG sensors. The stop screw only sets the extend end position; it is not a load lock. On air loss, the piston drifts because the 29 mm cushions only decelerate motion near stroke end. Use an external rod lock or pilot-operated check valve to hold a load securely.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAU Cylinders
Request a Quote for Airtac SAUJ100 Adjustable Cylinder SAUJ100X70-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.