Airtac SAI63 Standard Cylinder SAI63BX375S
The AirTAC SAI63 Standard Cylinder SAI63BX375S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 375mm 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
- Stroke375 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 SAI63BX375S
The AirTAC SAI63X375-S is a double-acting ISO 15552 profile cylinder engineered for precise linear motion. It generates a robust 1559 N of push force at 0.5 MPa, making it well-suited for medium-duty handling tasks over its 375 mm stroke. The extruded aluminum barrel design omits traditional tie rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 profile cylinders.
This specific configuration includes a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in humid or washdown environments. It is equipped with a magnetic piston (-S) to seamlessly integrate with CMSE and DMSE sensor switches, which ride neatly in the dual-side sensor grooves. Fluid ports feature PT tapered threading, and the cylinder includes adjustable air cushions at both ends to manage impact energy at stroke completion.
Airtac SAI63 Standard Cylinder SAI63BX375S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX375S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 375 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 SAI63BX375S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×375 | 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 SAI63BX375S Is Used
Stainless Component Handling
The SUS304 rod excels in food-grade or medical assembly lines, pushing parts reliably over 375 mm cycles without risking surface corrosion from ambient moisture.
Pallet Diverting
Delivers 1559 N of thrust at 0.5 MPa to positively push or divert medium-weight pallets from a high-speed conveyor belt into a secondary processing lane.
Automated Crate Stacking
Uses its extended 375 mm stroke and integrated CMSE sensor magnet to confirm full extension when positioning packaging materials at varying vertical heights.
Is the Airtac SAI63 Standard Cylinder SAI63BX375S the Right Cylinder?
When sizing this actuator, note that stepping down to a 50 mm bore reduces the 0.5 MPa push force to 982 N, while upgrading to an 80 mm bore increases it to 2513 N. Because this model features a 375 mm stroke, the unsupported piston rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear, pair this unit with an external guide rail or utilize a fully guided cylinder assembly for heavy offset loads.
For any application requiring the load to be physically held in place during a complete air-pressure loss, remember that the standard adjustable air cushion only decelerates the piston and does not act as a braking mechanism. In safety-critical drop-prevention scenarios, specify the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder instead. To match this unit exactly for an ISO 15552 replacement, ensure the target bore is 63 mm, stroke is 375 mm, port is G3/8, and the mounting accessory and -S magnet requirement are confirmed.
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 SAI63BX375S FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder 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 SAI series is a true ISO 15552 profile cylinder. Its mounting interface dimensions are fully interchangeable with other ISO 15552 profile cylinders, provided you match the 63 mm bore, 375 mm stroke, and G3/8 port size.
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