Airtac SAI50 Standard Cylinder SAI50AX550
The AirTAC SAI50 Standard Cylinder SAI50AX550 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 550mm 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
- Stroke550 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 SAI50AX550
The AirTAC SAI50X550 is a double-acting ISO 15552 profile cylinder offering a 550mm stroke with a 50mm bore. It provides 982N of push force and 825N of pull force at 0.5 MPa, making it well-suited for mid-range actuation tasks. The extruded aluminum barrel design omits tie rods, presenting a clean exterior that matches standardized ISO 15552 mounting dimensions.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid environments. It uses PT tapered port threads, and because it lacks a built-in magnet, it relies on external proximity switches if position sensing is needed.
Airtac SAI50 Standard Cylinder SAI50AX550 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX550 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 550 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 SAI50AX550
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×550 | 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 SAI50AX550 Is Used
Material Transfer
Drives extended-length pusher arms on conveyor lines to divert packages using its 550mm stroke.
Component Ejection
Ejects machined parts from a CNC enclosure where the SUS420J2 rod resists coolant splashes.
Pallet Handling
Actuates lifting and positioning gates in automated storage systems requiring 982N of push force.
Is the Airtac SAI50 Standard Cylinder SAI50AX550 the Right Cylinder?
When selecting this model, verify if the 982N push force at 0.5 MPa is sufficient for your load. If your application requires less force, stepping down to a 40mm bore yields 628N, while moving up to a 63mm bore provides 1559N. The 550mm stroke is a standard length, but the extended reach means side loads can cause severe rod-bearing bending. To prevent premature wear, use an external guide rail or a fully guided cylinder assembly.
This cylinder serves as a direct replacement for any ISO 15552 profile cylinder with matching 50mm bore, 550mm stroke, and G1/4 port dimensions. It includes adjustable air cushions at both ends to decelerate the piston, but it does not hold the load if air pressure drops; for dead-load holding, consider the SAIL variant with an air-released lock.
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 SAI50AX550 FAQ
At 0.5 MPa, the SAI50X550 provides 982N of push force and 825N of pull force. If operated at 0.7 MPa, the push force increases to 1374N.
Yes, the SAI50X550 is dimensionally interchangeable per ISO 15552 standards. You can drop it in to replace any profile-type 50x550 cylinder with a G1/4 port.
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Covers non-human-caused product damage.
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