Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 165mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke165 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-100
The AirTAC SAIJ63X165-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 1559 N of pull force at 0.5 MPa. Its defining feature is a 100 mm adjustment range that creates a highly flexible 65-165 mm usable travel window. This allows you to dial in the exact retract end-position at commissioning without swapping hardware.
Built with a SUS420J2 stainless steel rod (material code A) and PT tapered ports, this extruded aluminum profile cylinder runs at speeds of 30-800 mm/s. The rear screw acts purely as a travel stop for deceleration alongside the standard air cushions, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 165 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-100 Is Used
Product Changeovers
Dial in the retract distance from 65 to 165 mm instantly when switching between different product sizes on the same packaging line.
End-Position Tuning
Fine-tune the final resting position during machine commissioning without machining external stop blocks or changing the cylinder.
Adjustable Ejection
Handle varying part ejection lengths in assembly machinery by adjusting the stroke stopper to match specific component dimensions.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-100 the Right Cylinder?
Choose this 63 mm bore when you need 1559 N pull force at 0.5 MPa but require significant on-the-fly travel adjustments for product changeovers. If your application needs less force, stepping down to a 50 mm bore yields 825 N pull. If you require true load-holding without live air, a plain SAIJ is insufficient; consider the SAIL pneumatic lock or BSAI clamp-lock series instead. For a drop-in ISO 15552 replacement, match the 63 mm bore, 165 mm stroke, 100 mm adjuster, PT ports, SUS420J2 rod, and standard mounting set.
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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-100 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N of push force. It reaches a maximum push force of 2805 N at 0.7 MPa.
The rear adjuster allows you to trim the nominal 165 mm stroke back by up to 100 mm, creating a usable travel window of 65 to 165 mm. This stopper sets the end position but does not lock the load without live air pressure.
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