Airtac SAI63 Standard Cylinder SAI63AX375
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX375 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 SAI63AX375
The AirTAC SAI63X375 is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 1559 N and a pull force of 1402 N at 0.5 MPa. Its 375 mm stroke provides substantial extension length for mid-range automation tasks. The extruded aluminum barrel design omits tie-rods, ensuring a clean exterior that drops directly into standardized ISO 15552 mounting footprints.
Built for demanding environments, this specific configuration utilizes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion and wear resistance compared to standard carbon steel. The unit features PT tapered port threads on its G3/8 air connections. Because this variant lacks a magnet, it does not support internal sensor switches; position detection must be handled externally if required.
Airtac SAI63 Standard Cylinder SAI63AX375 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX375 |
|---|---|
| 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 SAI63AX375
| 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 SAI63AX375 Is Used
Workpiece Elevation
Raises heavy machining fixtures using its 1559 N push force across the 375 mm stroke, relying on external linear guides to handle side loads.
Pallet Diversion
Actuates diverter arms on packaging lines where the 1402 N pull force retracts the mechanism clear of passing pallet traffic.
Material Forming
Provides steady clamping pressure on aluminum extrusion presses, utilizing the SUS420J2 rod to withstand repetitive industrial stress.
Is the Airtac SAI63 Standard Cylinder SAI63AX375 the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm variant steps the 0.5 MPa push force up from 982 N to 1559 N, while stepping down from the 80 mm bore saves space and air volume without sacrificing the 1402 N pull capacity. The 375 mm stroke falls well within the 1500 mm standard maximum, but any stroke at or above 300 mm requires careful attention to side-load management. An unsupported rod of this length is susceptible to bending under lateral forces; utilizing an external guide rail or a twin-rod guided cylinder is strongly recommended to prevent premature rod-bearing wear.
This model is dimensionally interchangeable per ISO 15552, allowing seamless replacement for other cylinders matching the 63 mm bore, 375 mm stroke, G3/8 PT ports, and standard mounting accessories like FA flanges or TC trunnions. Note that a standard SAI cylinder relies on live air pressure to maintain its position; if the air is exhausted, the load will drift. For applications requiring position holding without continuous pressure, consider the SAIL lock variant or an external pilot-operated check valve.
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 SAI63AX375 FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder generates a push force of 1559 N and a pull force of 1402 N. If pressure increases to 0.7 MPa, the push force rises to 2182 N.
Yes, the SAI63X375 is a genuine ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 cylinders that share the 63 mm bore, 375 mm stroke, and G3/8 port specifications.
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