Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX70-20 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 SAIJ100AX70-20
The AirTAC SAIJ100X70-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 50 to 70 mm, enabling precise end-position tuning at commissioning without swapping out the unit.
This model features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads with a G1/2 connection. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic sensors. The rear adjuster acts strictly as a travel stop for deceleration, meaning it will not hold a load safely without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-20 |
|---|---|
| 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 SAIJ100AX70-20
| 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 SAIJ100AX70-20 Is Used
Machine Changeover
Dial in the exact 50-70 mm end-stop during product size changes without swapping cylinders or adding external shims.
Clamping Position Tuning
Fine-tune the clamping travel on heavy fixtures to compensate for material thickness variations instantly.
End-Stop Calibration
Adjust the retract position precisely during commissioning to synchronize multiple actuators on an assembly line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX70-20 the Right Cylinder?
The 20 mm adjustment range is ideal for product changeovers on a packaging line, allowing you to dial in the exact end-stop without installing external physical stops.
For ISO 15552 replacement, match the 100 mm bore, 70 mm nominal stroke, 20 mm adjustment range, PT G1/2 port, and standard mounting options (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 25 mm rod and M20x1.5 thread carry high side-load capacity, it performs well in rigid setups, though any stroke over 300 mm would still require an external guide. If your application requires true load-holding without continuous air, select the SAIL or BSAI series instead, as this adjuster is not a locking mechanism.
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 SAIJ100AX70-20 FAQ
At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the 70 mm nominal stroke by up to 20 mm, creating a usable travel window of 50 to 70 mm. It acts as a mechanical stop to tune the end position and does not lock the load without live air.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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