Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 165mm 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
- Stroke165 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-50S
The AirTAC SAIJ100X165-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 115 to 165 mm. Delivering 3927 N of push force at 0.5 MPa (and up to 7068 N at 0.9 MPa), it handles heavy positioning tasks with precision. This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for solid-state DMSE or reed CMSE sensor integration.
The rear adjuster acts purely as a travel stop to fine-tune end positions during commissioning; it is not a lock and will not hold the load without live air pressure. Mounting options include the reduced SAIJ set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The extruded aluminum barrel carries sensor grooves on both sides, and the G1/2 PT port manages airflow for the 30-800 mm/s speed range.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 165 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 SAIJ100BX165-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×165 | 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 SAIJ100BX165-50S Is Used
Product Changeovers
Dial in the 115-165 mm stroke window on the fly during packaging format changes without swapping cylinders or adding external mechanical stops.
Machine Setup Tuning
Fine-tune the retract end-position during initial commissioning to hit exact registration marks, absorbing mechanical tolerances directly at the rear adjuster.
Variable End Stops
Accommodate multiple part sizes on a single conveyor line by adjusting the travel limit up to 50 mm, utilizing the 7068 N push force at 0.9 MPa for robust actuation.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-50S the Right Cylinder?
Select this 100 mm bore when a 63 mm bore (providing 1559 N at 0.5 MPa) is insufficient for your load, but a 125 mm bore is oversized. The 50 mm adjustment range is ideal for production lines needing variable end-stops during product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, pair this cylinder with an external pilot-operated check valve or select the SAIL or BSAI series instead.
To match this ISO 15552 interchangeable replacement exactly, verify the 100 mm bore, 165 mm nominal stroke, 50 mm adjustment code, PT G1/2 port thread, and the -S magnet option for sensor compatibility. Because the stroke is 165 mm, ensure the load is guided externally to prevent excessive side-loading on the 25 mm rod, as long unsupported strokes can cause premature wear.
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 SAIJ100BX165-50S FAQ
This 100 mm bore cylinder provides a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw lets you shorten the effective stroke within a 115 to 165 mm usable travel window. It functions as an end-position stop for commissioning tuning, not a load-holding lock.
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