Airtac SAI63 Standard Cylinder SAI63X85
The AirTAC Airtac SAI63 Standard Cylinder SAI63X85 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 85mm 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
- Stroke85 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X85
The AirTAC SAI63X85 is a double-acting ISO 15552 profile cylinder offering a push force of 1559 N and a pull force of 1402 N at 0.5 MPa. This 85 mm stroke length provides a compact extension range suited for medium-duty handling tasks. The extruded aluminum barrel design omits tie rods, ensuring a clean exterior.
This specific configuration features a standard carbon steel piston rod and PT tapered port threads. For applications requiring position feedback, the barrel includes sensor grooves on both sides for CMSE or DMSE switches, though a magnet (-S option) would be required for their operation.
Airtac SAI63 Standard Cylinder SAI63X85 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X85 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 85 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 SAI63 Standard Cylinder SAI63X85
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×85 | 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 SAI63 Standard Cylinder SAI63X85 Is Used
Component Clamping
Provides reliable 1559 N clamping pressure at 0.5 MPa for securing medium-sized metal parts during machining operations.
Package Diverting
The 85 mm stroke quickly actuates diverting arms on packaging lines to route medium-weight products efficiently.
Material Ejection
Delivers consistent ejection force to push completed workpieces out of fixtures in automated assembly cells.
Is the Airtac SAI63 Standard Cylinder SAI63X85 the Right Cylinder?
Select this 63 mm bore when a 50 mm bore falls short on power, providing a significant step up from 982 N to 1559 N of push force at 0.5 MPa. If your application requires even less force, stepping down to a 40 mm bore yields 628 N. The 85 mm stroke is ideal for short transfers, but if your mechanism must hold a load vertically without continuous air pressure, note that a standard SAI cylinder will drift; consider the SAIL (air-released lock) or BSAI (clamp-lock) variants instead.
As a true ISO 15552 profile cylinder, this unit is dimensionally interchangeable with other ISO 15552 cylinders. It features a G3/8 port, M16x1.5 rod thread, and 36 mm cushions at both ends. Mounting accessories include LB foot brackets, FA flanges, and TC trunnion styles.
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 SAI63 Standard Cylinder SAI63X85 FAQ
At an operating pressure of 0.5 MPa, the SAI63X85 cylinder provides a push force of 1559 N and a pull force of 1402 N. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X85 is a genuine ISO 15552 profile cylinder. Its standardized mounting interface dimensions make it a drop-in replacement for other ISO 15552 cylinders, ensuring seamless integration.
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