Airtac SAI50 Standard Cylinder SAI50BX500S
The AirTAC SAI50 Standard Cylinder SAI50BX500S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 500mm 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
- Stroke500 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 SAI50BX500S
The AirTAC SAI50X500-S is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and a 500mm stroke. It delivers a push force of 982 N and a pull force of 825 N at 0.5 MPa, making it well-suited for moderate-load automation tasks requiring extended travel distances. The extruded aluminum barrel design omits tie rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration includes a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in humid or washdown environments. It is equipped with a magnet (-S) for proximity sensing via CMSE or DMSE switches, which fit directly into the sensor grooves machined on both sides of the barrel.
Airtac SAI50 Standard Cylinder SAI50BX500S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX500S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 500 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 SAI50BX500S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×500 | 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 SAI50BX500S Is Used
Material Handling
Drives extended 500mm strokes to push cartons or totes between adjacent conveyor lines in distribution centers.
Pallet Positioning
Shifts empty pallets into loading zones with 982 N of push force, easily handling standard pallet weights at 0.5 MPa.
Door Automation
Actuates large industrial partition doors or safety gates that require a long 500mm travel distance to fully open.
Is the Airtac SAI50 Standard Cylinder SAI50BX500S the Right Cylinder?
If your application requires less force, stepping down to a 40mm bore yields 628 N of push force at 0.5 MPa, while stepping up to a 63mm bore provides 1559 N. For this 500mm stroke, side loads pose a significant risk of bending the rod and prematurely wearing the rod bearing. To mitigate this, implement an external guide rail or utilize a guided cylinder to absorb radial loads and prevent mechanical binding.
This model features PT tapered port threads and a G1/4 air supply connection. Being a standard double-acting cylinder, it relies on continuous air pressure to hold its position; if air is lost or the valve is centered, the piston will drift. For applications that must hold a load statically without live pressure, consider the SAIL variant with an air-released lock or the BSAI clamp-lock cylinder.
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 SAI50BX500S FAQ
At an operating pressure of 0.5 MPa, the SAI50X500-S provides a push force of 982 N and a pull force of 825 N. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X500-S is a true ISO 15552 profile cylinder. Its standardized mounting interface and center-to-center dimensions make it a direct replacement for other ISO 15552 cylinders of the same bore and stroke.
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