Airtac SAI50 Standard Cylinder SAI50BX210S
The AirTAC SAI50 Standard Cylinder SAI50BX210S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 210mm 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
- Stroke210 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 SAI50BX210S
The AirTAC SAI50X210-S is a double-acting ISO 15552 profile cylinder engineered for pneumatic automation. It delivers a push force of 982 N at 0.5 MPa, making it well-suited for mid-range actuation tasks requiring a 210 mm travel distance. The extruded aluminum barrel design eliminates tie-rods, providing a smooth exterior that simplifies cleaning and reduces debris accumulation.
This specific configuration features a SUS304 stainless steel piston rod (option B) for superior moisture and corrosion resistance. The -S designation indicates an integrated magnet, allowing seamless operation with CMSE or DMSE reed switches fitted directly into the dual sensor grooves on the barrel. The 210 mm stroke is a non-standard made-to-order length, ensuring exact fitment for specialized machinery envelopes.
Airtac SAI50 Standard Cylinder SAI50BX210S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX210S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 210 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 SAI50BX210S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×210 | 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 SAI50BX210S Is Used
Package Diverting
Actuates routing gates on packaging lines where the 982 N force and 210 mm stroke reliably redirect mixed-weight cartons.
Component Sealing
Provides consistent downward clamping pressure for press-fitting bearings or applying seals in assembly jigs.
Pallet Stopping
Functions as a pneumatic stop gate in roller conveyors, utilizing the SUS304 rod to withstand humid washdown environments.
Is the Airtac SAI50 Standard Cylinder SAI50BX210S the Right Cylinder?
When selecting this cylinder, verify if the 982 N push force at 0.5 MPa is sufficient, or if stepping up to the 63 mm bore (1559 N) is necessary for heavier payloads. Conversely, if the load is lighter, the 40 mm bore offers 628 N in a more compact footprint. Because this model features a 210 mm stroke, it approaches the threshold where side loading becomes a concern; always ensure the load is guided externally to prevent rod-bearing bending and premature seal wear.
The SAI50X210-S uses PT tapered G1/4 ports and is dimensionally interchangeable per ISO 15552 standards, serving as a direct replacement for other ISO 15552 profile cylinders. Mounting accessories include LB foot brackets, FA/FB flanges, and TC trunnion joints. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold a load. If position holding is required upon air loss, specify the SAIL (lock) or BSAI (clamp-lock) variant instead.
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 SAI50BX210S FAQ
At a standard operating pressure of 0.5 MPa, this 50 mm bore cylinder generates a push force of 982 N and a pull force of 825 N. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X210-S adheres to strict ISO 15552 mounting dimensions, making it a direct replacement for any standard ISO 15552 profile cylinder with a 50 mm bore and 210 mm stroke. It uses G1/4 PT ports and standard FA, LB, or TC mounting accessories.
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