Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40 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 SAIJ100BX165-40
The AirTAC SAIJ100X165-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 40 mm. This yields a usable stroke window of 125-165 mm, letting you dial in the exact end position at commissioning without adding external stopper blocks. It delivers a robust 3927 N push force at 0.5 MPa, stepping up to 7068 N at 0.9 MPa.
This variant is built with a SUS304 stainless steel rod (option B) for superior corrosion resistance and ships with PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Note that the rear adjuster acts purely as a mechanical stop to set deceleration; it does not lock or hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40 |
|---|---|
| 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 SAIJ100BX165-40
| 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 SAIJ100BX165-40 Is Used
Product Changeover
Dial in the 125-165 mm travel window during line format changes to accommodate different package sizes without swapping the cylinder.
End-Stop Tuning
Fine-tune the final retract position during machine commissioning using the rear adjuster, avoiding the need to bolt on external mechanical stops.
High-Force Positioning
Leverage the 3927 N push force at 0.5 MPa to move heavy jigs or tooling plates into exact working positions with adjustable end limits.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40 the Right Cylinder?
Choose this 100 mm bore when your application requires higher thrust than a neighbouring 80 mm cylinder (which provides 2513 N at 0.5 MPa) but you want to avoid the bulk of a 125 mm unit. The adjustable 125-165 mm travel window is ideal for product changeovers on a line, giving you a variable end-stop instead of machining new fixed-length SAI cylinders for every part size. If your load-holding application requires safety without continuous air pressure, you must add an external rod lock or look to the SAIL or BSAI series, as the SAIJ adjuster is not a brake.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 165 mm nominal stroke, 40 mm adjustment range, PT port thread, and the required mounting accessory from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 165 mm stroke is moderate, side-load stress is lower than on long unsupported strokes, but an external guide is still 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 SAIJ100BX165-40 FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw allows you to shorten the nominal 165 mm stroke by up to 40 mm, creating a usable travel window of 125-165 mm. This lets you set the exact retract end position during setup without changing the cylinder.
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