Airtac SAI63 Standard Cylinder SAI63X550S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X550S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X550S
The AirTAC SAI63X550-S is a double-acting ISO 15552 profile cylinder engineered to deliver a theoretical push force of 1559 N at 0.5 MPa. Featuring a 63 mm bore and 550 mm stroke, this extruded aluminum actuator provides a drop-in replacement for any standard ISO 15552 mounting interface.
Equipped with a magnetic piston (-S), it supports CMSE and DMSE position sensing along the dual sensor grooves machined into the barrel. The standard carbon steel piston rod handles demanding industrial cycles, while adjustable air cushions at both ends absorb kinetic energy to protect end-of-stroke components.
Airtac SAI63 Standard Cylinder SAI63X550S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X550S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 550 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 SAI63X550S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×550 | 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 SAI63X550S Is Used
Pallet Transfer
Pushes heavy pallets laterally across a conveyor line using the 1559 N push force at 0.5 MPa, with the 550 mm stroke clearing wide product profiles.
Vertical Lift Gates
Actuates lightweight safety gates or material diverters, relying on the magnetic piston to trigger DMSE sensors for precise mid-stroke positioning.
Component Ejection
Ejects molded or machined parts from a press area, utilizing the adjustable end cushions to decelerate the rod smoothly over the long 550 mm travel.
Is the Airtac SAI63 Standard Cylinder SAI63X550S the Right Cylinder?
Selecting this 63 mm bore makes sense when a 50 mm bore (982 N push at 0.5 MPa) lacks the necessary thrust, but an 80 mm bore (2513 N) would be physically oversized. At 550 mm of stroke, the unsupported rod length is highly susceptible to bending under side loads; utilize external guide rails or a guided cylinder to prevent premature rod bearing wear.
If your fixture must maintain its vertical position or hold a load after air pressure is removed, a standard SAI will drift; specify an external pilot-operated check valve or the SAIL locking variant. This configuration uses a PT tapered port and pairs with FA, LB, or TC mounting accessories.
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 SAI63X550S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X550-S is dimensionally interchangeable per ISO 15552. You can swap it directly into existing foot, flange, or trunnion mounts designed for standard ISO 15552 profile cylinders.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI63 Standard Cylinder SAI63X550S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.