Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-30 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 SAIJ63AX180-30
The AirTAC SAIJ63X180-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 150-180mm. Delivering a 1559N pull force at 0.5MPa, it handles robust positioning tasks. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting.
This variant incorporates an SUS420J2 stainless steel rod (code A) for enhanced durability against moisture and light corrosion. The rear adjustment screw acts as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops. It is not a locking device; for load-holding without live air pressure, consider the SAIL or BSAI series.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-30 |
|---|---|
| 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 SAIJ63AX180-30
| 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 SAIJ63AX180-30 Is Used
Machine Changeover
Dial in the 150-180mm retract position during product size changes without physically swapping cylinders or adding external stopper blocks.
End-Stop Tuning
Fine-tune the final retract position at commissioning to absorb mechanical tolerances and achieve precise placement before tightening lock nuts.
Robust Positioning
Leverage the 1559N pull force and SUS420J2 rod to move and position heavier jigs or workpieces reliably in harsh environments.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-30 the Right Cylinder?
Choose this 63mm bore cylinder when you need higher force than the 50mm bore (which provides 825N pull at 0.5MPa) but do not require the full output of the 80mm version. The 30mm adjustment range is ideal for product changeovers on automated lines, allowing you to dial in the exact end position without swapping the cylinder. The PT tapered port threads ensure a robust, sealed connection.
When replacing an ISO 15552 cylinder, match the 63mm bore, 180mm nominal stroke, 30mm adjustment, PT port, and desired mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. For this 180mm stroke, the 20mm rod and M16x1.5 thread handle side loads well, though longer unsupported strokes require external guides.
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 SAIJ63AX180-30 FAQ
At 0.5MPa, it provides 1559N of push force and 1402N of pull force. At 0.7MPa, the push force increases to 2182N.
The rear adjuster screw lets you mechanically shorten the effective stroke within a 150-180mm window. It functions as a travel stop, not a lock, so it cannot hold the load without continuous air pressure.
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