Airtac SAI63 Standard Cylinder SAI63BX40S
The AirTAC SAI63 Standard Cylinder SAI63BX40S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke40 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 SAI63BX40S
The AirTAC SAI63X40-S is a double-acting ISO 15552 profile cylinder engineered for direct interchangeability with standard mounting interfaces. Delivering a robust 1559 N of push force at 0.5 MPa, this 63 mm bore unit is tailored for short, rapid 40 mm strokes. The extruded aluminum barrel omits traditional tie-rods, presenting a clean, modern exterior that simplifies cleaning and reduces overall footprint.
This specific configuration features a SUS304 stainless steel rod (material code B) for superior corrosion resistance in wet or chemically exposed settings. Equipped with a -S magnet, it seamlessly integrates CMSE or DMSE electronic sensors directly into the dual-side barrel grooves. Fluid must be filtered to 40 um, and the adjustable air cushions at both ends ensure smooth deceleration even at cycling speeds up to 800 mm/s.
Airtac SAI63 Standard Cylinder SAI63BX40S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX40S |
|---|---|
| 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 SAI63BX40S
| 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 SAI63BX40S Is Used
Short-Stroke Clamping
Generates 1559 N of clamping force at just 0.5 MPa, perfect for holding heavy machined components securely during milling or drilling operations.
Package Diverting
The 40 mm stroke rapidly pushes diverters or gates at up to 800 mm/s, redirecting heavy cartons on high-speed packaging and sorting conveyor lines.
Press Ejection
Uses the robust 63 mm piston to forcefully eject pressed metal or plastic parts from tight molds immediately after the forming cycle completes.
Is the Airtac SAI63 Standard Cylinder SAI63BX40S the Right Cylinder?
If your application requires less force, stepping down to a 50 mm bore yields 982 N at 0.5 MPa, whereas moving up to an 80 mm bore provides 2513 N. Because this 40 mm stroke is quite short, side-load stress on the rod bearing is minimal, making it ideal for high-frequency clamping without requiring an external guide. To match this unit, select a 63 mm bore, 40 mm stroke, PT port (G3/8), and an -S magnet for position sensing. For operations that must maintain position during a complete air loss, note that a standard SAI relies on live pressure; a SAIL variant with an air-released lock or a BSAI clamp-lock cylinder is required to prevent drifting.
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 SAI63BX40S FAQ
At an operating pressure of 0.5 MPa, the 63 mm bore generates a push force of 1559 N, and it reaches 2182 N at 0.7 MPa.
Yes, the SAI63X40-S is dimensionally interchangeable per ISO 15552, serving as a direct replacement for other ISO 15552 profile cylinders without altering mounting hardware.
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