Airtac SAI63 Standard Cylinder SAI63X70
The AirTAC Airtac SAI63 Standard Cylinder SAI63X70 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 70mm 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
- Stroke70 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X70
The AirTAC SAI63X70 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its 70 mm stroke provides a compact yet powerful extension for mid-range automation tasks.
This extruded aluminum barrel omits tie-rods and features dual sensor grooves for CMSE or DMSE switches. You can configure it with a standard carbon steel rod, or upgrade to SUS304 stainless steel for corrosive environments.
Airtac SAI63 Standard Cylinder SAI63X70 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X70 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 70 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 SAI63X70
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×70 | 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 SAI63X70 Is Used
Clamping Fixtures
Provides 1559 N of secure clamping force at 0.5 MPa for holding heavy metal components during machining operations.
Product Diverters
Uses its 70 mm stroke to actuate routing gates and pusher arms, redirecting packages along high-speed material handling lines.
Press Operations
Drives small stamping and light press tasks where a 50 mm bore falls short but a larger 80 mm bore is physically excessive.
Is the Airtac SAI63 Standard Cylinder SAI63X70 the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (982 N at 0.5 MPa) lacks the necessary thrust for your tooling. Because this model lacks a magnet (-S), adding proximity sensors requires specifying the -S option. To mount it as a drop-in replacement for other ISO 15552 cylinders, use PT tapered ports and accessories like LB foot brackets or TC trunnions.
If your process loses air pressure, this standard cylinder will drift and cannot hold a load. For fail-safe position holding, select the SAIL variant with an air-released lock or the BSAI clamp-lock cylinder.
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 SAI63X70 FAQ
Operating at 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes. The SAI63X70 is dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 profile cylinders when matching the 63 mm bore, 70 mm stroke, and G3/8 port.
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