Airtac SAI50 Standard Cylinder SAI50X300STC
The AirTAC SAI50 Standard Cylinder SAI50X300STC is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 300mm 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
- Stroke300 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 SAI50X300STC
The AirTAC SAI50X300-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force and 825 N of pull force at 0.5 MPa. Its 300 mm stroke is well-suited for intermediate transfer tasks and automated material handling. The extruded aluminum barrel design omits tie rods, providing a clean exterior that resists debris accumulation.
This specific configuration features a standard carbon steel piston rod and a built-in magnet (-S) for position sensing. The dual sensor grooves on the barrel accept CMSE or DMSE reed switches, allowing for precise end-of-stroke detection. Fluid must be filtered to 40 um, and the unit operates reliably within a -20 to +70 C temperature range.
Airtac SAI50 Standard Cylinder SAI50X300STC Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X300STC |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 300 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 SAI50X300STC
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×300 | 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 SAI50X300STC Is Used
Package Diversion
Actuates routing gates on high-speed packaging lines, using the 300 mm stroke to push cartons between adjacent conveyor belts.
Component Ejection
Ejects machined parts from a fixture, relying on the 825 N pull force at 0.5 MPa to reliably retract the arm during unloading.
Pallet Stopper
Functions as a pneumatic stop in low-inertia pallet conveyor systems, holding goods in place for robotic pick-and-place operations.
Is the Airtac SAI50 Standard Cylinder SAI50X300STC the Right Cylinder?
When specifying this actuator, verify if the 982 N thrust at 0.5 MPa is sufficient for your load, or step up to the 63 mm bore, which provides 1559 N of push force. For this 300 mm stroke, the unsupported rod length introduces a risk of bending under side loads. To prevent premature rod-bearing wear, implement an external guide rail or select a fully guided cylinder to absorb lateral forces.
This unit is dimensionally interchangeable with other ISO 15552 cylinders, allowing a direct replacement using the 50 mm bore, 300 mm stroke, PT G1/4 port, and TC trunnion mounting footprint. Note that the standard adjustable air cushions only decelerate the piston near stroke ends; they do not hold a load. If pressure is lost, the rod will drift. For dead-end holding without live air pressure, specify the SAIL or BSAI variant.
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 SAI50X300STC FAQ
At 0.5 MPa, the cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
Yes. The SAI50X300-S is a profile cylinder built to ISO 15552 dimensional standards, meaning it is interchangeable with other ISO 15552 cylinders of the same 50 mm bore and 300 mm stroke.
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