Airtac SAI50 Standard Cylinder SAI50AX275S
The AirTAC SAI50 Standard Cylinder SAI50AX275S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 275mm 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
- Stroke275 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 SAI50AX275S
The AirTAC SAI50X275-S is a double-acting ISO 15552 profile cylinder offering a push force of 982 N at 0.5 MPa. Its 275 mm stroke makes it highly suitable for mid-range linear actuation tasks on automated machinery. The extruded aluminum barrel design omits tie rods, providing a clean exterior that simplifies cleaning and reduces debris buildup.
This specific configuration includes an SUS420J2 stainless steel piston rod (material code A), which provides excellent corrosion and scratch resistance for harsher industrial environments. Equipped with a magnet (-S), the barrel features integrated sensor grooves on both sides, allowing for straightforward installation of CMSE or DMSE reed switches to track piston position. Ports feature PT tapered threads for secure, leak-free pneumatic connections.
Airtac SAI50 Standard Cylinder SAI50AX275S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX275S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 275 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 SAI50AX275S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×275 | 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 SAI50AX275S Is Used
Package Diversion
Ideal for actuating diverter arms on packaging lines, where the 982 N force easily pushes heavy cartons and the 275 mm stroke provides ample reach.
Component Seating
Provides reliable downward clamping force to seat bearings or pins into housings on light assembly presses without marring the workpiece.
Gate Control
Actuates medium-sized machine guarding gates or safety doors, utilizing the full 275 mm travel to fully clear the working envelope.
Is the Airtac SAI50 Standard Cylinder SAI50AX275S the Right Cylinder?
Providing 982 N of thrust at 0.5 MPa, this 50 mm bore is an ideal step up when a 40 mm bore (628 N) falls short on pushing power, yet avoids the bulkier 63 mm bore (1559 N). For applications requiring 275 mm of travel, ensure your layout supports the extended length to prevent rod deflection.
Because the 275 mm stroke exceeds 300 mm threshold guidelines, be mindful of side loads. Long unsupported rods are prone to bending under lateral stress; utilizing an external guide rail or a dedicated guided cylinder will prevent premature rod-bearing wear. Furthermore, standard double-acting cylinders drift when air pressure is removed—use a SAIL variant or external check valve if mid-stroke load holding is required. This model is dimensionally interchangeable with other ISO 15552 cylinders, utilizing a G1/4 port, M16x1.5 rod thread, and standard FA/FB flange or TC trunnion mounts.
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 SAI50AX275S FAQ
At 0.5 MPa operating pressure, the push force is 982 N and the pull force is 825 N. At the maximum 1.0 MPa pressure, the theoretical push force reaches 1767 N.
Yes, the SAI50X275-S is dimensionally interchangeable per the ISO 15552 standard. It shares the same mounting interface, 50 mm bore, G1/4 port, and M16x1.5 rod thread as comparable profile cylinders, allowing for a direct replacement.
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