Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-50S 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 SAIJ100BX145-50S
The AirTAC SAIJ100X145-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 3927N push force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks. The integrated -50 mm adjustment mechanism allows you to fine-tune the effective travel down to a 95-145 mm window without swapping out the unit.
This model is equipped with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. It is compatible with AirTAC CMSE reed and DMSE electronic sensors fitted into the dual-side barrel grooves. The PT G1/2 port and M20x1.5 rod thread provide ample flow and structural integrity, while the extruded aluminum profile maintains standard ISO 15552 mounting dimensions.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-50S |
|---|---|
| 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 SAIJ100BX145-50S
| 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 SAIJ100BX145-50S Is Used
Machine Changeover
Dial in the 95-145 mm travel window during product size transitions to set new end positions rapidly without machining external stoppers.
Press Fitting
Leverage the 3927N push force at 0.5 MPa to seat components, using the rear screw to precisely limit the final pressing depth.
Conveyor Diverter
Adjust the retract stopper on the fly to accommodate varying package lengths on an automated sorting line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-50S the Right Cylinder?
Select this 100 mm bore when a 63 mm bore (1559N push at 0.5 MPa) lacks the power for high-inertia loads, but a 125 mm unit is physically oversized. The 50 mm adjustable window is ideal for product changeovers where the exact end-of-stroke varies slightly, removing the need for custom machined spacers. The rear adjuster acts purely as a mechanical stop to set deceleration; it does not lock the load. For true fail-safe load holding without live air, consider the SAIL or BSAI series instead. Because the nominal stroke is under 300 mm, side-load risks are minimal, but external guides are still recommended for heavy off-center loads.
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 SAIJ100BX145-50S FAQ
The rear adjuster lets you shorten the nominal 145 mm stroke by up to 50 mm, providing a usable travel window of 95 to 145 mm. You turn the stopper screw to set the exact retract position during commissioning.
At 0.5 MPa operating pressure, it provides 3927N of push force and 3681N of pull force. At the maximum 1.0 MPa pressure, the push force reaches 7068N.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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