Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke145 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100
The AirTAC SAIJ100X145-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 45-145 mm usable travel window. Delivering 3927 N of push force at 0.5 MPa, it handles heavy actuation with precision. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting.
This model uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered ports. The rear adjuster acts purely as a mechanical stop to fine-tune end positions during commissioning. It does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100 |
|---|---|
| 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 | 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 SAIJ100AX145-100
| 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 SAIJ100AX145-100 Is Used
Variable End Stops
Dial in the exact retract position for varying part lengths without physically changing the cylinder or adding external stopper blocks.
Line Changeover
Rapidly reconfigure automated machinery for new product sizes by adjusting the rear screw during setup rather than swapping tooling.
Heavy Forming
Leverage the 3927 N push force at 0.5 MPa for pressing and clamping tasks that require precise end-position tuning at commissioning.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100 the Right Cylinder?
Choose this 100 mm bore when 80 mm (2513 N push) is insufficient or 125 mm (6136 N) is too large. The 100 mm adjustment range is ideal for machines requiring frequent product-size changeovers, eliminating the need to swap cylinders or bolt on external stops. When specifying a replacement, match the 145 mm stroke, 100 mm adjustment, PT G1/2 port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Because the nominal stroke is 145 mm, side-load is manageable, but long unsupported strokes still require an external guide. The rod and M20x1.5 thread handle high side loads well. The rear screw decelerates travel but is not a lock; use a pilot-operated check valve for position holding without live air.
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 SAIJ100AX145-100 FAQ
At 0.5 MPa it provides 3927 N push and 3681 N pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw lets you trim the 145 mm nominal stroke back by up to 100 mm, creating a 45-145 mm travel window. It acts as a mechanical stop and does not lock the load without air pressure.
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