Airtac SAI63 Standard Cylinder SAI63AX185
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX185 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 SAI63 Standard Cylinder SAI63AX185
The AirTAC SAI63X185 is a double-acting ISO 15552 profile cylinder featuring a custom 185mm stroke. It delivers a push force of 1559 N at 0.5 MPa, making it well-suited for medium-duty handling tasks.
This specific configuration features an SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads. As a genuine AirTAC component, it ensures reliable, dimensionally interchangeable performance per ISO 15552 standards.
Airtac SAI63 Standard Cylinder SAI63AX185 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX185 |
|---|---|
| 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 SAI63AX185
| 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 SAI63AX185 Is Used
Component Clamping
Secures mid-sized workpieces during machining operations with 1559 N of clamping force at 0.5 MPa.
Package Diverting
Actuates diverting gates on processing lines where a custom 185mm travel distance is required.
Material Lift
Raises lightweight jigs or platens in automated assembly cells, benefiting from the SUS420J2 stainless rod.
Is the Airtac SAI63 Standard Cylinder SAI63AX185 the Right Cylinder?
This 185mm stroke is a non-standard made-to-order length, falling between the 175mm and 200mm standard options. If your application requires slightly less force, stepping down to a 50mm bore yields 982 N at 0.5 MPa.
Because the stroke is under 300mm, side-load stress on the rod bearing is moderate, but external guides are still recommended for heavy lateral loads. Note that this cylinder relies on adjustable air cushions to decelerate the piston at stroke ends; it cannot hold a load if air pressure is lost. For position holding, consider the SAIL variant with an air-released lock.
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 SAI63AX185 FAQ
At 0.5 MPa operating pressure, the SAI63X185 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 SAI63X185 is a genuine AirTac profile cylinder built to ISO 15552 standards. Its mounting interface is dimensionally interchangeable with other ISO 15552 cylinders, allowing for seamless drop-in replacement.
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