Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX145-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 145mm 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
- Stroke145 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 SAIJ100AX145-20
The AirTAC SAIJ100X145-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 125 to 145 mm. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
This model incorporates a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and features PT tapered port threads. The rear adjuster acts purely as a mechanical stop to set the travel end, meaning it does not hold the load without live air pressure. For load-holding requirements, exploring SAIL or BSAI cylinders is recommended.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 145 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 SAIJ100AX145-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×145 | 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 SAIJ100AX145-20 Is Used
Machine Setup Changeovers
Fine-tune the 125-145 mm travel end during product-size line changeovers without bolting on external stops or replacing the entire cylinder.
End-Position Calibration
Dial in the exact retracted position during initial commissioning to perfect part seating or clamping forces using the rear adjustment screw.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20 the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 2513 N at 0.5 MPa) lacks the necessary thrust for your application, but stepping up to a 125 mm bore is unnecessary. The adjustable 125-145 mm travel window is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide. Since the rear adjuster only stops travel and does not lock the rod, external rod locks or pilot-operated check valves are required if the load must be held without continuous air pressure.
When matching this ISO 15552 cylinder for a replacement, verify the 100 mm bore, 145 mm nominal stroke, 20 mm adjustment range, PT port threads, and the specific mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Because this configuration lacks the -S magnet option, it cannot host CMSE or DMSE sensors without a rod magnet upgrade.
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 SAIJ100AX145-20 FAQ
The rear adjuster screw allows you to mechanically shorten the effective stroke by up to 20 mm, providing a usable travel window of 125 to 145 mm. It functions as a travel stop and does not lock the load without live air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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