Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 120mm 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
- Stroke120 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-30
The AirTAC SAIJ100X120-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 120 mm travel back by up to 30 mm, creating a precise 90-120 mm usable end-position window. This on-machine tunability allows operators to fine-tune the retract stop during commissioning or product changeovers without physically swapping the cylinder or adding external stops. It delivers 5497 N of push force at 0.7 MPa.
This SKU is configured with an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and features tapered PT ports. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches, though this specific unit ships without a magnet. The rear adjuster acts purely as a travel stop to set deceleration, not as a lock, so it cannot hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 120 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 SAIJ100AX120-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×120 | 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 SAIJ100AX120-30 Is Used
End-Position Tuning
Dial in the exact retract stop within a 90-120 mm window during machine commissioning without swapping out the entire cylinder.
Product Changeover
Quickly adjust the stroke by up to 30 mm on automated lines when switching to a new product size or format.
High-Force Positioning
Leverage 5497 N of push force at 0.7 MPa to move heavy pallets or fixtures into a precisely adjustable final position.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-30 the Right Cylinder?
Select this 100 mm bore when an application requires substantial thrust—such as 5497 N at 0.7 MPa—but still needs on-the-fly end-position tuning within a 90 to 120 mm window. If your process requires less force, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa, whereas stepping up to 125 mm provides 8590 N. Choose this adjustable-stroke SAIJ model over a fixed-stroke SAI when you anticipate frequent machine setup changes or need to dial in a final position without re-engineering the fixture.
To replace an ISO 15552 cylinder with this SAIJ unit, verify the 100 mm bore, 120 mm stroke, 30 mm adjustment range, PT port threads, and mounting style. SAIJ supports a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 120 mm stroke is relatively short, side-load stress is minimal, but the 25 mm rod and M20x1.5 thread provide robust stability for off-center loads. For applications that must hold a load without continuous air pressure, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants 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 SAIJ100AX120-30 FAQ
At an operating pressure of 0.7 MPa, this 100 mm bore cylinder generates 5497 N of push force and 3681 N of pull force. At the maximum rated pressure of 1.0 MPa, it can deliver up to 801 kgf.
The rear adjusting screw acts as an external stopper that lets you shorten the effective travel from the 120 mm nominal stroke down to as little as 90 mm. It sets the travel end and deceleration point but does not lock or hold the load without live air pressure.
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