Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-50S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX70-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 70mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke70 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 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 SAIJ100 Adjustable Cylinder SAIJ100AX70-50S
The AirTAC SAIJ100X70-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 20 to 70 mm from its 70 mm nominal stroke. The integrated -S magnet enables position sensing with AirTAC CMSE reed and DMSE electronic switches.
This model features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads. It shares the standard extruded aluminum barrel with dual sensor grooves. The rear adjustment mechanism acts strictly as a travel stop to dial in end positions during commissioning, and it does not lock or hold the load without continuous air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
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 SAIJ100 Adjustable Cylinder SAIJ100AX70-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-50S Is Used
Product Changeover
Dial in the stroke from 20 to 70 mm instantly during packaging line format changes without swapping cylinders.
End-Position Tuning
Fine-tune the retracted end-stop during machine commissioning to perfectly align heavy 3927N press loads.
Adjustable Ejector
Vary the ejection distance on an assembly line to accommodate different part sizes using the rear stopper.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-50S the Right Cylinder?
Select this 100mm bore cylinder when an application requires substantial thrust—stepping up from a 63mm bore increases force from 1559N to 3927N at 0.5 MPa. An adjustable stroke is ideal here for machine setups requiring variable end-stops or frequent product-size changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder. For a direct ISO 15552 replacement, match the 100mm bore, 70mm stroke, 50mm adjustment, PT ports, and the -S magnet requirement.
Because the 50mm adjustment range on a 70mm stroke allows the effective travel to be dialed back significantly, ensure the moving load is adequately guided to prevent side-loading on the rod. If the machinery needs to maintain a clamp or hold a load statically without live air pressure, this cylinder is not a lock; consider the AirTAC SAIL pneumatic lock or BSAI clamp-lock series instead.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/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/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-50S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 50mm. This creates a usable travel window of 20 to 70mm, allowing precise end-position tuning at commissioning without adding external stops.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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