Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 180mm 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
- Stroke180 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-40S
The AirTAC SAIJ63X180-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a 1559N pull force at 0.5 MPa. It features a SUS420J2 stainless steel rod (code A) and a built-in magnet for position sensing. The integrated rear stopper allows you to fine-tune the effective travel, providing a usable adjustment window of 140-180mm for this 180mm nominal stroke.
This adjustable range is ideal for product changeovers, letting you dial in the exact end position without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 180 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 SAIJ63AX180-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×180 | 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 SAIJ63AX180-40S Is Used
Product Changeovers
Quickly adapt the stroke window from 140 to 180mm during production line changeovers to accommodate varying package sizes without changing hardware.
End-Position Tuning
Fine-tune the retract end position during machine commissioning to achieve precise mechanical alignment without machining external stopper blocks.
Adjustable Ejection
Control the ejection distance of parts from a fixture by dialing the rear screw, allowing operators to manage varying component dimensions on the fly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-40S the Right Cylinder?
Choose this 63mm bore when you need 1559N of pull force at 0.5 MPa and require frequent end-position tuning at commissioning. If your application needs less force, stepping down to a 50mm bore yields 825N of pull force; stepping up to an 80mm bore provides 2268N. The PT tapered port threads match standard pneumatic fittings, and the mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. For load-holding without live air pressure, consider the SAIL or BSAI series instead of relying on this adjuster.
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 SAIJ63AX180-40S FAQ
At 0.5 MPa operating pressure, this 63mm bore cylinder provides 1559N of pull force and 2182N of push force. It can reach a maximum push force of 2805N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that trims the effective travel. For this 180mm stroke model with a -40 adjustment code, you can reduce the stroke by up to 40mm, creating a usable travel window of 140-180mm. It does not lock the position without air pressure.
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