Airtac SAI50 Standard Cylinder SAI50BX350S
The AirTAC SAI50 Standard Cylinder SAI50BX350S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 350mm 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
- Stroke350 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 SAI50BX350S
The AirTAC SAI50X350-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 350 mm stroke provides ample extension for mid-range automation tasks. As a tie-rod-less extruded aluminum design, it offers a clean profile while maintaining strict dimensional interchangeability with other ISO 15552 cylinders.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a magnetic piston (-S) for position sensing. The dual sensor grooves on the barrel accept CMSE or DMSE switches, and the PT tapered port threads ensure a secure pneumatic connection.
Airtac SAI50 Standard Cylinder SAI50BX350S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX350S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 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 SAI50BX350S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×350 | 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 SAI50BX350S Is Used
Package Diverting
Extends 350 mm to actuate diverting arms on packaging lines, using the magnetic piston to confirm stroke endpoints.
Material Pressing
Provides 982 N of push force at 0.5 MPa to hold lightweight materials or components securely during machining.
Vertical Lifting Gates
Raises and lowers access gates; the SUS304 rod ensures reliable operation even in humid storage environments.
Is the Airtac SAI50 Standard Cylinder SAI50BX350S the Right Cylinder?
Choose this 50 mm bore when an application requires more thrust than a 40 mm bore (628 N at 0.5 MPa) but does not need the bulk of a 63 mm bore (1559 N at 0.5 MPa). The 350 mm stroke is well within the 1200 mm maximum standard stroke for this bore size.
Because the stroke is 350 mm, the unsupported rod length increases the risk of rod-bearing bending under side load. Use an external guide rail or a guided cylinder to prevent premature seal wear. Note that the standard adjustable air cushions only decelerate the piston at end-of-stroke; they do not hold a load. If pressure is lost, the piston will drift. For position holding without live pressure, specify the SAIL lock or BSAI clamp-lock variant. This model is a direct replacement for any ISO 15552 cylinder matching its 50 mm bore, 350 mm stroke, PT G1/4 port, and standard mounting accessories like FA flange or TC trunnion.
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 SAI50BX350S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
Yes. The SAI50X350-S is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 profile cylinders with a 50 mm bore, 350 mm stroke, and G1/4 port, provided you use the matching mounting accessories.
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