Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-30 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 SAIJ63AX165-30
The AirTAC SAIJ63X165-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 165 mm travel by up to 30 mm. This creates a precise 135 to 165 mm usable window, enabling exact end-position tuning at commissioning without swapping out the barrel or adding external stops. It delivers a solid 1402 N pull force at 0.5 MPa, matching the standard SAI force class for robust actuation.
This variant features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE or DMSE switches if position detection is required later. The rear adjuster acts purely as a travel stop for deceleration and end-position setting, so it will not hold the load safely without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-30 |
|---|---|
| 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 SAIJ63AX165-30
| 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 SAIJ63AX165-30 Is Used
Machine Changeover
Dial in the 135-165 mm travel window during product size transitions without physically swapping the cylinder or repositioning external hard stops.
End-Position Tuning
Use the rear adjuster to fine-tune the exact retraction point during commissioning, absorbing mechanical tolerances in the fixture setup.
Assembly Pressing
Apply the 1402 N pull force at 0.5 MPa for precise pressing operations, relying on the adjustable stop to prevent over-travel.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-30 the Right Cylinder?
Choose this 63 mm bore when your application demands the 1402 N pull force at 0.5 MPa, offering a step up in thrust from the 50 mm bore which provides 825 N pull. The adjustable stroke is ideal for machine changeover, letting you fine-tune the 135-165 mm travel window on the fly instead of machining new hard stops. For holding a load securely without live air, this cylinder is not a lock; you would need to step up to a SAIL or BSAI variant.
As a true profile cylinder, it is dimensionally interchangeable per ISO 15552 standards. When matching this for a replacement, verify the 63 mm bore, 165 mm stroke, 30 mm adjustment range, PT port threads, and the reduced SAIJ mounting set which includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ63AX165-30 FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder delivers 1559 N of push force and 1402 N of pull force. It can reach up to 2805 N push force at 0.9 MPa.
The rear adjuster screw lets you shorten the 165 mm nominal stroke by up to 30 mm, providing a usable travel window of 135 to 165 mm. It functions as a mechanical stop and does not lock the load without continuous air pressure.
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