Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-30S 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 SAIJ100X70-30S
The AirTAC SAIJ100X70-30-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering 3927N of push force at 0.5 MPa. It features a carbon steel piston rod and a PT tapered port thread. By integrating a rear adjusting screw, this model allows you to fine-tune the end position at commissioning, shortening the effective travel to create a precise 40-70mm usable stroke window.
Because the adjuster acts as a mechanical stop on the retract end, it only sets the travel limit and decelerates the load alongside the standard air cushions; it does not hold the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, and the included magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors for position feedback.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-30S |
|---|---|
| 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 SAIJ100X70-30S
| 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 SAIJ100X70-30S Is Used
Machine Changeover
Dial in the 40-70mm travel window during product size changes to set exact retract positions without repositioning physical hard stops.
Fixture Clamping
Apply up to 3927N of clamping force at 0.5 MPa while fine-tuning the exact approach distance to protect delicate workpieces.
Assembly Station Setup
Use the rear adjustment screw to establish precise end-of-stroke limits during initial commissioning of new automated assembly lines.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X70-30S the Right Cylinder?
Choose this 100mm bore cylinder when an application requires substantial thrust but exact end-of-stroke positioning varies by product or fixture. If you need less force, stepping down to a 63mm bore yields 1559N at 0.5 MPa, while moving up to 125mm provides 6136N. The adjustable rear stop is ideal for machine changeover, letting you trim up to 30mm of travel without swapping the cylinder or adding external stops. Unlike a fixed-stroke SAI model, this SAIJ variant provides a built-in tuning window.
For ISO 15552 interchangeability, match the 100mm bore, 70mm nominal stroke, PT port thread, and standard carbon steel rod. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. For load-holding without live air pressure, use an external rod lock or pilot-operated check valve, as the SAIJ adjuster is not a brake.
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 SAIJ100X70-30S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
The rear adjuster screw allows you to shorten the 70mm nominal stroke by up to 30mm, creating a usable travel window of 40-70mm. This stop sets the end position but does not lock the load without continuous air pressure.
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