Airtac SAI50 Standard Cylinder SAI50AX140S
The AirTAC SAI50 Standard Cylinder SAI50AX140S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 140mm 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
- Stroke140 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 SAI50AX140S
The AirTAC SAI50X140-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 140 mm stroke provides the exact mid-range extension needed for general automation tasks. Because it features an integrated magnet (-S), it operates seamlessly with CMSE and DMSE reed switches mounted directly into the dual sensor grooves on the extruded aluminum barrel.
Built for demanding environments, this specific configuration utilizes a SUS420J2 stainless steel piston rod (material code A) for superior corrosion resistance compared to standard carbon steel. The fluid ports feature PT tapered threads, ensuring a robust, mechanically sealed connection. As a genuine ISO 15552 standardized unit, it offers a direct replacement for any compliant profile cylinder.
Airtac SAI50 Standard Cylinder SAI50AX140S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX140S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 140 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 SAI50AX140S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×140 | 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 SAI50AX140S Is Used
Parts Clamping
Ideal for securing medium-weight machined components during milling or drilling, utilizing the 982 N push force to hold parts firmly against a fixed stop.
Package Diverting
Provides reliable actuation for sorting arms on packaging lines, where the 140 mm stroke quickly pushes cartons from one belt to another.
Gate Operation
Drives safety gates and machine access doors, using the integrated magnet and DMSE sensors to confirm closed and locked positions to the PLC.
Is the Airtac SAI50 Standard Cylinder SAI50AX140S the Right Cylinder?
Select this 50 mm bore cylinder when an application requires stepping up from a 40 mm unit (which provides 628 N at 0.5 MPa) to handle heavier payloads without the bulk of a 63 mm body. The 140 mm stroke is well below the 300 mm threshold, so severe rod-bearing bending is minimal; however, always verify that your mechanical linkage prevents excessive side loading. For mounting interchangeability, match the 50 mm bore, 140 mm stroke, PT G1/4 ports, and your chosen ISO accessory (such as an LB foot or FA flange).
Keep in mind that the standard adjustable air cushions at both ends only decelerate the piston near stroke end; they do not function as a mechanical brake. If the pneumatic supply is lost, the rod will drift. For applications requiring absolute position holding without live air pressure, specify the SAIL variant with an air-released lock or utilize 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 SAI50AX140S FAQ
At a standard operating pressure of 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes. The SAI50X140-S is dimensionally interchangeable per ISO 15552. You can swap it directly with other ISO 15552 profile cylinders of the same bore and stroke, provided you match the PT G1/4 port threads and mounting accessories.
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