Airtac SAI63 Standard Cylinder SAI63X950S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X950S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X950S
The AirTAC SAI63X950-S is a double-acting ISO 15552 profile cylinder engineered for long-reach linear motion. It provides a robust 1559 N push force and 1402 N pull force at 0.5 MPa, operating efficiently at speeds between 30-800 mm/s. This 950 mm stroke configuration is tailored for applications requiring extensive travel distances without compromising standardized mounting dimensions.
Equipped with a magnetic piston (-S), this model seamlessly integrates with CMSE and DMSE sensor switches housed in the dual-side extruded aluminum barrel grooves. The standard carbon steel piston rod ensures high tensile strength for demanding cycles, while adjustable air cushions at both ends absorb end-of-stroke impact. Fluid must be filtered to 40 um for optimal seal longevity.
Airtac SAI63 Standard Cylinder SAI63X950S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X950S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 950 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 SAI63X950S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×950 | 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 SAI63X950S Is Used
Long-Stroke Material Transfer
Pushes heavy pallets or workpieces across 950 mm gaps between conveyor lines, utilizing the 1559 N thrust at 0.5 MPa to overcome friction on guide rails.
High-Bay Pusher Arm
Acts as a lateral pusher on automated storage and retrieval systems, extending fully to move cartons into deep storage bins while tracking position via CMSE sensors.
Large Door Actuation
Opens and closes heavy industrial machine guarding doors or blast gates, relying on adjustable air cushions to decelerate the substantial mass smoothly at stroke ends.
Is the Airtac SAI63 Standard Cylinder SAI63X950S the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm variant steps the 0.5 MPa thrust up from 982 N to 1559 N, providing a significant increase in lifting capacity. If your application requires even greater force, the 80 mm bore offers 2513 N at the same pressure. Because this model features a 950 mm stroke, the extended carbon steel rod is highly susceptible to bending under side loads; always utilize an external guide rail or a dedicated guided cylinder to support the payload.
This unit is dimensionally interchangeable per ISO 15552, serving as a direct drop-in replacement for other ISO 15552 profile cylinders with matching 63 mm bore, 950 mm stroke, G3/8 PT ports, and standard mounting accessories like FA flanges or TC trunnions. Note that the standard SAI lacks a locking mechanism; if air pressure is lost, the piston will drift. For dead-end holding without live pressure, specify the SAIL variant or install 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 SAI63X950S FAQ
At 0.5 MPa operating pressure, 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 SAI63X950-S is a genuine ISO 15552 profile cylinder, making its mounting dimensions fully interchangeable with other standard ISO 15552 cylinders of the same bore and stroke. Ensure your setup uses the matching G3/8 port and appropriate mounting accessories.
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