Airtac SAI50 Standard Cylinder SAI50AX300S
The AirTAC SAI50 Standard Cylinder SAI50AX300S 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.
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About the Airtac SAI50 Standard Cylinder SAI50AX300S
The AirTAC SAI50X300-S is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and a 300mm stroke. It generates 982 N of push thrust and 825 N of pull thrust at 0.5 MPa, making it well-suited for medium-duty handling tasks across extended distances. The extruded aluminum barrel design omits tie rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 actuators.
This specific configuration includes a magnet for position sensing (-S) and utilizes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. The barrel features sensor grooves on both sides, allowing for seamless integration of CMSE or DMSE reed switches without requiring additional brackets.
Airtac SAI50 Standard Cylinder SAI50AX300S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX300S |
|---|---|
| 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 SAI50AX300S
| 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 SAI50AX300S Is Used
Extended Package Pushing
Pushing cartons or totes over a 300mm gap on a packaging line where the 982 N force easily overcomes friction without stalling.
Pallet Diverting
Acting as a diverter arm in conveyor merges, utilizing the magnet (-S) to confirm arm extension and retraction at high flow rates.
Medium-Load Positioning
Moving workpieces into machining centers, relying on the SUS420J2 stainless rod to resist moisture in wash-down adjacent areas.
Is the Airtac SAI50 Standard Cylinder SAI50AX300S the Right Cylinder?
Selecting this 50mm bore makes sense when a 40mm bore (providing 628 N push at 0.5 MPa) is insufficient for your load, but a larger 63mm bore (delivering 1559 N) would be overkill and consume excess space. The 300mm stroke is a standard length, but at this extension the unsupported piston rod is highly susceptible to bending under side loads. To prevent premature seal wear and rod-bearing failure, implement an external linear guide or utilize a guided cylinder carriage.
For installations requiring the cylinder to hold a load in place during a complete loss of air pressure, note that the standard adjustable air cushions only decelerate the piston at stroke end and do not act as a locking mechanism. In such fail-safe scenarios, you must specify the SAIL (air-released lock) variant or integrate an external pilot-operated check valve. This model uses a PT tapered G1/4 port and is fully compatible with standard ISO 15552 mounting accessories like FA flanges or TC trunnions.
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 SAI50AX300S FAQ
At 0.5 MPa, this 50mm bore cylinder provides a push force of 982 N and a pull force of 825 N. If you increase the operating pressure to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X300-S is a true ISO 15552 profile cylinder, meaning its mounting dimensions for flanges, trunnions, and clevises are fully interchangeable with other ISO 15552 compliant cylinders. You should still verify that your port thread (PT G1/4) and rod end thread (M16x1.5) match your existing mechanical interfaces.
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