Airtac SAI50 Standard Cylinder SAI50AX280S
The AirTAC SAI50 Standard Cylinder SAI50AX280S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 280mm 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
- Stroke280 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 SAI50AX280S
The AirTAC SAI50X280-S is a double-acting ISO 15552 profile cylinder engineered for standardized mounting. Delivering a push force of 982 N at 0.5 MPa, this 50 mm bore unit is built for robust linear motion. The 280 mm stroke provides ample extension for mid-range travel tasks.
This variant features a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance. It includes a standard magnet (-S) for position sensing, utilizing the dual sensor grooves on the extruded aluminum barrel to seamlessly integrate CMSE or DMSE reed switches.
Airtac SAI50 Standard Cylinder SAI50AX280S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX280S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 280 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 SAI50AX280S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×280 | 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 SAI50AX280S Is Used
Material Diverting
Actuates diverter arms on packaging lines, utilizing the 280 mm stroke to push products cleanly between parallel conveyor belts.
Component Pressing
Applies the 982 N push force at 0.5 MPa to seat bearings or pins into housings without requiring full system pressure.
Pallet Stops
Functions as a pneumatic stop gate in low-profile material handling zones, extending quickly to halt pallet movement.
Is the Airtac SAI50 Standard Cylinder SAI50AX280S the Right Cylinder?
Selecting this 50 mm bore makes sense when a 40 mm bore (628 N at 0.5 MPa) is underpowered, but an 80 mm bore (2513 N at 0.5 MPa) is oversized. The PT tapered port threads match standard pneumatic fittings, and the M16x1.5 rod thread accommodates various knuckles.
Because the 280 mm stroke creates a long extension, avoid side loads that could bend the rod or damage the rod bearing; utilize an external guide rail or a fully guided cylinder for offset loads. Note that the adjustable air cushions at both ends only decelerate the piston near stroke limits; they do not hold a load. If pressure drops, the rod will drift, so use the SAIL variant for pneumatic locking or an external check valve for position holding.
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 SAI50AX280S FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. If higher pressure is utilized, the push force reaches 1374 N at 0.7 MPa.
Yes, the SAI50X280-S is dimensionally interchangeable with other ISO 15552 profile cylinders, matching standard mounting interfaces and footprints without requiring machine redesigns.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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