Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX185-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX185-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 185mm 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
- Stroke185 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX185-10
The AirTAC SAIJ63X185-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that lets you trim the effective travel back by up to 10 mm, creating a precise 175-185 mm usable window. It delivers a robust 1559 N pull force at 0.5 MPa, making it well-suited for mid-range actuation tasks.
This variant features a SUS420J2 stainless steel rod for enhanced durability against moisture and light corrosion. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the magnet, so external position sensing is not supported out of the box.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX185-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX185-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 185 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 SAIJ63AX185-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×185 | 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 SAIJ63AX185-10 Is Used
End-Position Tuning
Dial in the exact retract distance within the 175-185 mm window during setup to perfect a pressing or forming operation without machining new hard stops.
Product Changeover
Quickly adjust the end-of-stroke position on a packaging line when switching to a slightly different carton size, minimizing downtime.
Mid-Range Actuation
Leverage the 1559 N pull force to move intermediate jigs or fixtures where precise physical positioning at the end of the stroke is critical.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX185-10 the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore falls short on power (delivering only 825 N pull at 0.5 MPa) but an 80 mm bore is physically oversized. The 10 mm rear adjustment screw is ideal for fine-tuning the retract end-position during machine commissioning or product changeover without swapping the cylinder or adding external stops.
Configuration details: 185 mm nominal stroke, 10 mm adjustment range, PT tapered ports, and a SUS420J2 rod. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series.
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 SAIJ63AX185-10 FAQ
The rear adjusting screw acts as a mechanical stopper that lets you shorten the nominal 185 mm stroke by up to 10 mm. This provides a usable travel window of 175-185 mm, allowing you to fine-tune the retract position at commissioning without changing the cylinder itself.
At 0.5 MPa operating pressure, this 63 mm bore cylinder generates 1559 N of pull force and 2182 N of push force. At the maximum rated pressure of 1.0 MPa, it can deliver up to 318 kgf.
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