Airtac SAI63 Standard Cylinder SAI63X185
The AirTAC SAI63 Standard Cylinder SAI63X185 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke185 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI63 Standard Cylinder SAI63X185
The AirTAC SAI63X185 is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 1559 N and a pull force of 1402 N at 0.5 MPa. Its 185 mm stroke is well-suited for mid-range linear actuation tasks requiring robust thrust. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies mounting and sensor placement.
This unit features a standard carbon steel piston rod and PT tapered port threads. For environments where fluid temperatures reach up to 70 C, the standard TPU seals perform reliably, though Viton (H) seal options are available for elevated thermal demands. The barrel includes dual sensor grooves, allowing direct mounting of CMSE or DMSE switches when a magnet is specified.
Airtac SAI63 Standard Cylinder SAI63X185 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X185 |
|---|---|
| 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 SAI63 Standard Cylinder SAI63X185
| 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 SAI63 Standard Cylinder SAI63X185 Is Used
Clamping Mechanisms
Provides the 1559 N push force required to secure heavy metal workpieces during CNC machining or welding operations.
Product Diverting
Actuates routing gates on automated assembly lines, utilizing its 185 mm stroke to redirect products into secondary lanes.
Press Operations
Drives small pneumatic presses for bearing insertion or component seating, delivering consistent force across the stroke.
Is the Airtac SAI63 Standard Cylinder SAI63X185 the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm variant significantly increases thrust, stepping up from 982 N to 1559 N at 0.5 MPa. If your application requires even greater power, the 80 mm bore offers 2513 N. Because this model features a 185 mm stroke, it remains compact enough that side-load stress on the rod bearing is minimal compared to longer strokes.
As a standard double-acting cylinder, it relies on continuous air pressure to move and hold loads; it will drift if pressure is lost. For applications requiring position holding without live pressure, consider the SAIL variant with an air-released lock. This SAI63X185 is dimensionally interchangeable per ISO 15552, accepting standard PT G3/8 ports and FA flange or LB foot mounting accessories.
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 SAI63X185 FAQ
At an operating pressure of 0.5 MPa, the SAI63X185 generates 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 SAI63X185 is built to the ISO 15552 standard, making it dimensionally interchangeable with other ISO 15552 profile cylinders of the same bore and stroke. It matches standard mounting interfaces and G3/8 ports.
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Standard models are processed and dispatched in 3-5 business days.
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