Airtac SAI63 Standard Cylinder SAI63X375
The AirTAC Airtac SAI63 Standard Cylinder SAI63X375 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke375 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X375
The AirTAC SAI63X375 is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 1559 N at 0.5 MPa. Its 375 mm stroke makes it highly suitable for mid-range linear actuation tasks requiring substantial reach. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies mounting and sensor placement.
This standard configuration features a durable carbon steel piston rod and PT tapered port threads. Because it lacks a built-in magnet, it relies on external positioning or mechanical stops. For high-temperature environments up to +70 C, the standard TPU seals can be swapped for Viton (H) or NBR (N) options to match specific ambient demands.
Airtac SAI63 Standard Cylinder SAI63X375 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X375 |
|---|---|
| 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 SAI63X375
| 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 SAI63X375 Is Used
Automated Clamping
Provides 1559 N of clamping thrust at 0.5 MPa for securing heavy metal workpieces during CNC machining operations.
Material Diversion
Utilizes the 375 mm stroke to push heavy pallets or product cartons smoothly across diverter gates on packaging lines.
Press Assembly
Drives lightweight press operations and bearing insertion tasks where consistent 0.7 MPa actuation force is required.
Is the Airtac SAI63 Standard Cylinder SAI63X375 the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm variant significantly increases thrust, jumping from 982 N to 1559 N at 0.5 MPa. If your application requires less force and faster cycling, stepping down to the 40 mm bore yields 628 N. At a 375 mm stroke, the unsupported piston rod is susceptible to bending under side loads; utilize an external guide rail or a guided cylinder to prevent premature rod-bearing wear.
This model functions as a drop-in replacement for any ISO 15552 cylinder matching its 63 mm bore, 375 mm stroke, G3/8 port, and mounting footprint. If your machinery requires intermediate stopping or failsafe holding when air pressure is removed, pair this cylinder with an external pilot-operated check valve or specify the SAIL air-released lock variant instead.
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 SAI63X375 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder generates a push force of 1559 N and a pull force of 1402 N. When pressure increases to 0.7 MPa, the push force reaches 2182 N.
Yes, the SAI63X375 is dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 profile cylinders with a 63 mm bore, 375 mm stroke, and G3/8 port.
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