Airtac SAI63 Standard Cylinder SAI63AX40
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 40mm 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
- Stroke40 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX40
The AirTAC SAI63X40 is a double-acting ISO 15552 profile cylinder engineered for robust linear motion. It delivers a push force of 1559 N and a pull force of 1402 N at 0.5 MPa, making it well-suited for short-stroke clamping and heavy-duty positioning tasks. The 40 mm stroke provides rapid actuation in compact machinery layouts.
This model features a SUS420J2 stainless steel piston rod for enhanced corrosion resistance compared to standard carbon steel. It utilizes PT tapered port threads and includes adjustable air cushions at both ends to decelerate the piston smoothly. As a genuine AirTAC component, it ensures reliable performance in demanding industrial environments.
Airtac SAI63 Standard Cylinder SAI63AX40 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 40 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 SAI63AX40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×40 | 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 SAI63AX40 Is Used
Heavy-Duty Clamping
Provides 1559 N of clamping force at 0.5 MPa to secure heavy metal workpieces during machining operations.
Product Diverting
Actuates a robust diverter arm to redirect heavy pallets or packaged goods on a high-throughput conveyor line.
Press Fit Assembly
Exerts precise downward force to seat bearings or bushings into housings within a compact 40 mm travel distance.
Is the Airtac SAI63 Standard Cylinder SAI63AX40 the Right Cylinder?
Choose this 63 mm bore when an application requires substantially more force than a 50 mm bore cylinder, which provides 982 N of push force at 0.5 MPa. If your setup demands less than 1402 N, stepping down to the 50 mm option saves space. The 40 mm stroke is optimal for tight spaces where a brief, powerful movement is necessary.
Because the stroke is only 40 mm, side-load stress on the rod bearing is minimal. However, this standard cylinder will drift if air pressure is lost; for applications requiring position holding without live pressure, consider the SAIL variant with an air-released lock. For drop-in replacements, match the 63 mm bore, 40 mm stroke, G3/8 port, and desired mounting accessory.
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 SAI63AX40 FAQ
At an operating pressure of 0.5 MPa, this double-acting cylinder provides a push force of 1559 N and a pull force of 1402 N.
Yes, it shares the standardized ISO 15552 mounting interface and dimensions, allowing it to be used as a drop-in replacement for other cylinders with a 63 mm bore, 40 mm stroke, and G3/8 port.
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