Airtac SAI63 Standard Cylinder SAI63AX70S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX70S 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 SAI63AX70S
The AirTAC SAI63X70-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force and 1402 N of pull force at 0.5 MPa. Its 70 mm stroke provides a compact extension distance well suited for intermediate positioning tasks. As a tie-rod-less extruded aluminum barrel design, it offers a clean profile while maintaining strict dimensional interchangeability with other ISO 15552 cylinders.
This specific configuration includes a SUS420J2 stainless steel rod (material code A) for enhanced resistance against surface corrosion and moisture. The integrated magnet (-S) enables seamless position detection when paired with CMSE or DMSE series sensor switches, which seat directly into the dual sensor grooves machined on both sides of the barrel.
Airtac SAI63 Standard Cylinder SAI63AX70S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX70S |
|---|---|
| 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 SAI63AX70S
| 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 SAI63AX70S Is Used
Clamping Mechanisms
Provides robust 1559 N clamping force at 0.5 MPa to secure heavy metal workpieces during machining or welding operations.
Product Diversion
Uses the 70 mm stroke to push packages or components cleanly off a main production line onto secondary processing tracks.
Gate Actuation
Drives safety guards and material flow gates on automated assembly lines, utilizing the integrated magnet for precise open/close signaling.
Is the Airtac SAI63 Standard Cylinder SAI63AX70S the Right Cylinder?
Select this 63 mm bore when a 50 mm bore falls short of the required work output, as stepping up to this size increases push force from 982 N to 1559 N at 0.5 MPa. If your application demands less energy, dropping to a 50 mm bore saves physical space and air consumption. Because the stroke is under 300 mm, side-load stress on the rod bearing is minimal, though standard alignment practices still apply.
This model features PT tapered port threads and a G3/8 air supply connection. For mounting flexibility, it accepts FA/FB flanges, LB foot brackets, or TC trunnion styles. Note that the standard adjustable air cushions only decelerate the piston at stroke ends; they do not lock the rod. If the machine loses air pressure, the load will drift, requiring an external pilot check valve or the SAIL locking variant for fail-safe holding.
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 SAI63AX70S FAQ
At a standard operating pressure of 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 2182 N.
Yes. The SAI63X70-S is a genuine ISO 15552 profile cylinder, meaning its mounting dimensions are fully interchangeable with other ISO 15552 standard cylinders, allowing for a drop-in replacement without modifying your equipment.
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