Airtac SAI50 Standard Cylinder SAI50BX650S
The AirTAC SAI50 Standard Cylinder SAI50BX650S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 650mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ50 mm
- Stroke650 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI50 Standard Cylinder SAI50BX650S
The AirTAC SAI50X650-S is a double-acting ISO 15552 profile cylinder engineered for robust linear motion. Delivering a push force of 982 N at 0.5 MPa, this 50mm bore unit is built to handle demanding industrial loads with precision. The 650mm stroke provides extensive travel range for machinery requiring deep extension. A standout feature of this configuration is the SUS304 stainless steel piston rod (material code B), which offers superior corrosion resistance compared to standard carbon steel, making it ideal for environments with moisture or harsh cleaning agents.
This model includes a built-in magnet (-S) for position sensing, allowing seamless integration with CMSE or DMSE series switches. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible mounting. Threaded with PT tapered ports (G1/4), it ensures a tight, leak-free pneumatic connection. As a genuine AirTAC component, it guarantees reliable performance and serves as a direct replacement for any standard ISO 15552 profile cylinder.
Airtac SAI50 Standard Cylinder SAI50BX650S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX650S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 650 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI50 Standard Cylinder SAI50BX650S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×650 | 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 SAI50 Standard Cylinder SAI50BX650S Is Used
Material Handling
Drives long-travel pusher arms on conveyor lines to sort or divert heavy packages over extended distances.
CNC Loading
Extends SUS304 rod into machining centers to load raw billets, resisting coolant and washdown fluids.
Pallet Dispensers
Actuates large pallet handling mechanisms in automated storage systems where 982N of push force is needed.
Is the Airtac SAI50 Standard Cylinder SAI50BX650S the Right Cylinder?
Selecting this 50mm bore cylinder makes sense when your application requires more thrust than the 40mm bore (628 N at 0.5 MPa) but does not need the heavier footprint of a 63mm bore (1559 N at 0.5 MPa). For a 650mm stroke, side-load management is critical; long unsupported rods are prone to bending. To prevent premature seal wear and rod bearing failure, pair this cylinder with an external guide rail or utilize a dedicated guided cylinder to absorb lateral forces.
This SAI50X650-S uses a G1/4 PT port and a 50mm bore footprint. It is dimensionally interchangeable per ISO 15552, meaning you can swap it directly with other ISO 15552 profile cylinders using standard FA/FB flange or LB foot mounting accessories. Remember that a standard double-acting cylinder relies on continuous air pressure to hold position; if your machine loses air or the valve centers, the load will drift. For applications requiring true position holding without live pressure, consider the SAIL locking 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 SAI50 Standard Cylinder SAI50BX650S FAQ
At an operating pressure of 0.5 MPa, this 50mm bore cylinder generates a push force of 982 N. If you increase the pressure to 0.7 MPa, the push force reaches 1374 N.
Yes, the SAI50X650-S is a genuine AirTAC profile cylinder built to ISO 15552 mounting dimensions. It is dimensionally interchangeable with other ISO 15552 profile cylinders, allowing a direct replacement using standard mounting hardware.
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