Airtac SAI50 Standard Cylinder SAI50AX325S
The AirTAC SAI50 Standard Cylinder SAI50AX325S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 325mm 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
- Stroke325 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 SAI50AX325S
The AirTAC SAI50X325-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa and 825 N of pull force. Its 325 mm stroke is well-suited for mid-range automation tasks requiring substantial travel. Built with an extruded aluminum barrel, it eliminates traditional tie rods while maintaining a standardized mounting interface.
This specific configuration includes a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance compared to standard carbon steel. The -S suffix indicates an integrated magnet, allowing seamless operation with CMSE and DMSE reed switches via the dual sensor grooves machined into both sides of the barrel. Fluid and air connections utilize PT tapered threads.
Airtac SAI50 Standard Cylinder SAI50AX325S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX325S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 325 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 SAI50AX325S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×325 | 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 SAI50AX325S Is Used
Material Diverting
Actuates diverter arms on packaging lines to route products into different sorting lanes over a 325 mm reach.
Component Pressing
Provides 982 N of thrust at 0.5 MPa for pressing small bearings or pins into housings without overshooting tolerances.
Pallet Positioning
Pushes empty pallets laterally along a roller conveyor to align them for wrapping or stacking stations.
Is the Airtac SAI50 Standard Cylinder SAI50AX325S the Right Cylinder?
Choosing this 50 mm bore makes sense when a 40 mm bore (providing 628 N at 0.5 MPa) lacks the necessary thrust, but an upgrade to a 63 mm bore (delivering 1559 N) would be excessive overkill. The 325 mm stroke falls within the 1200 mm maximum standard limit for this bore, meaning it is a standard catalog offering rather than a custom made-to-order part.
Because the stroke exceeds 300 mm, the extended rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear and seal failure, implement an external guide rail or utilize a fully guided cylinder mechanism. Furthermore, this standard SAI cylinder cannot hold a load if air pressure drops; the adjustable air cushions only decelerate the piston near the stroke ends. For true drop prevention, specify the SAIL variant with an air-released lock or an external rod lock. As an ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders, utilizing a G1/4 port, M16x1.5 rod thread, and compatible 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 SAI50 Standard Cylinder SAI50AX325S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X325-S is dimensionally interchangeable per ISO 15552 standards. You can drop it in as a replacement for other ISO 15552 profile cylinders, provided your setup matches the G1/4 port and M16x1.5 rod thread.
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