Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-50
The AirTAC SAIJ100X80-50 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 and uses a PT G1/2 tapered port. The integrated adjuster allows you to dial back the nominal 80mm stroke by up to 50mm, creating a precise 30-80mm usable travel window for exact end-position tuning during commissioning.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and is built without a magnet. The extruded aluminum barrel includes sensor grooves on both sides should you later need position feedback. Remember that the rear adjuster acts strictly as a travel stop to decelerate the load at the end of stroke; it is not a locking mechanism and cannot hold a load without continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAIJ100BX80-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SAIJ100BX80-50 Is Used
Machine Changeover
Dial in the 30-80mm travel window during product size transitions without replacing the actuator or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract end position at commissioning to absorb mechanical tolerances and ensure precise seating of the 3927N thrust.
Variable End Stops
Adjust the stroke dynamically on automated assembly lines to handle multiple part depths using a single double-acting profile cylinder.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-50 the Right Cylinder?
Choose this 100mm bore when an 80mm cylinder (delivering 628N at 0.5 MPa) lacks the necessary thrust, but you want to avoid the heavier 125mm class. The 50mm adjustment range is particularly useful for product changeovers on a line, letting you shift the end stop dynamically without physically swapping the cylinder or bolting on external stops. If your machine requires true load-holding without continuous air pressure, consider the AirTAC SAIL or BSAI clamp-lock series instead of relying on this adjuster.
As a dimensionally interchangeable ISO 15552 cylinder, this model matches standard mounting footprints using the Basic, FA, LB, TC, FTC, TCM1, or TCM2 accessories. It omits the FB, CA, CB, and CR mounting styles. Because the 80mm stroke is relatively short, side-load stress on the M20x1.5 rod thread is minimal, but an external guide is always recommended for heavy lateral 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 SAIJ100BX80-50 FAQ
At a 0.5 MPa operating pressure, this 100mm bore cylinder generates 3927N of push thrust and 3681N of pull thrust. It can reach up to 7068N push thrust at 0.9 MPa.
The rear adjusting screw acts as a mechanical stop that shortens the nominal 80mm stroke by up to 50mm, providing a usable travel window of 30-80mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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