Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-10 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke70 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-10
The AirTAC SAIJ100X70-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 70 mm nominal stroke that can be dialed back by up to 10 mm, yielding a precise 60-70 mm usable travel window for fine-tuning end positions at commissioning. In the 100 mm bore class, it generates 3927 N of push force and 3681 N of pull force at 0.5 MPa, making it suitable for heavy-duty positioning tasks.
This model uses a carbon steel piston rod with an M20x1.5 thread and a G1/2 port. Unlike fixed-stroke alternatives, the external rear stopper allows you to shorten the effective travel without swapping the cylinder or adding external stops. The rear adjuster acts purely as a travel stop to set deceleration alongside the standard air cushions, meaning it will not hold a load safely without live air pressure. For load-holding requirements, consider the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-10 |
|---|---|
| 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 | 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 SAIJ100 Adjustable Cylinder SAIJ100X70-10
| 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 SAIJ100X70-10 Is Used
Machine Changeover
Dial in the 60-70 mm stroke window during product size transitions without physically swapping out the actuator or adding external shims.
Heavy Clamping Setup
Leverage the 3927 N push force at 0.5 MPa to secure heavy workpieces, using the rear stopper to fine-tune the clamping depth precisely.
End-Stop Calibration
Adjust the final retract position by up to 10 mm during commissioning to perfectly align tooling stops on the assembly line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-10 the Right Cylinder?
Select this 100 mm bore adjustable cylinder when your application requires substantial thrust—such as 5497 N push force at 0.7 MPa—combined with exact end-position tuning. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa, whereas moving up to a 125 mm bore provides 6136 N. The SAIJ100X70-10 is chosen specifically over a fixed SAI cylinder when you need a variable end-stop to accommodate product changeovers or setup variations on a machine line.
Because the 70 mm stroke is relatively short, internal side-load stress is minimal, though the robust 25 mm rod and M20x1.5 thread handle substantial mechanical loads. This SKU features standard PT tapered port threads and no internal magnet. To replace an ISO 15552 cylinder, match the 100 mm bore, 70 mm stroke, 10 mm adjustment range, G1/2 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), which omits FB, CA, CB, and CR brackets.
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 SAIJ100X70-10 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. If you need higher force, increasing the pressure to 0.7 MPa yields 5497 N of push force.
The rear external adjuster screw acts as a mechanical stop that lets you shorten the 70 mm nominal stroke by up to 10 mm, creating a 60-70 mm usable travel window. It sets the end position but does not lock the load without continuous air pressure.
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