Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-20 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 SAIJ100BX165-20
The AirTAC SAIJ100X165-20 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 20 mm. This creates a precise 145-165 mm usable window, enabling fine end-position tuning at commissioning without swapping the hardware. Delivering 3927 N of push force at 0.5 MPa, it is built to handle substantial loads.
This unit incorporates a SUS304 stainless steel rod for superior corrosion resistance and ships with PT tapered port threads. The rear adjuster acts strictly as a travel stop to set the deceleration point, meaning it will not hold the load without live air pressure. For position holding, an external rod lock or the SAIL series is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-20 |
|---|---|
| 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 SAIJ100BX165-20
| 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 SAIJ100BX165-20 Is Used
Product Changeover
Dial in the 145-165 mm stroke window during line format changes to accommodate varying package sizes without replacing the entire cylinder assembly.
End-Stop Calibration
Fine-tune the retract position during commissioning to achieve exact mechanical alignment, using the rear screw to perfect the final deceleration point.
Heavy Load Positioning
Leverage the 3927 N push force at 0.5 MPa to move substantial jigs or assemblies into place, relying on the external guide rails to manage side loads.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-20 the Right Cylinder?
Choose this 100 mm bore when a 50 mm bore (982 N at 0.5 MPa) is insufficient but an 80 mm bore (2513 N at 0.5 MPa) leaves too little safety margin. The adjustable 145-165 mm travel is ideal for machine setups requiring variable end stops during product changeovers, eliminating the need to bolt on external physical stops.
When matching this ISO 15552 interchangeable cylinder, verify the 100 mm bore, 165 mm nominal stroke, 20 mm adjustment range, PT port threads, and standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because it lacks a magnet, it cannot host CMSE or DMSE sensors without modification.
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 SAIJ100BX165-20 FAQ
It features a rear adjusting screw that allows you to shorten the 165 mm nominal stroke by up to 20 mm, providing a usable travel window of 145 to 165 mm. This stopper sets the travel end and deceleration point but does not lock or hold the load without continuous air pressure.
At an operating pressure of 0.5 MPa, the 100 mm bore generates 3927 N of push force and 3681 N of pull force. It can deliver up to 7068 N of push force at 0.9 MPa.
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Standard models usually ship in 3-4 days.
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