Airtac SAI50 Standard Cylinder SAI50AX250
The AirTAC SAI50 Standard Cylinder SAI50AX250 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 250mm 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
- Stroke250 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 SAI50AX250
The AirTAC SAI50X250 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and a 250mm stroke. It supplies a thrust of 982N at 0.5 MPa, making it well-suited for moderate-load handling and positioning tasks.
This variant incorporates a SUS420J2 stainless steel rod for enhanced corrosion resistance and utilizes a PT tapered port thread. The extruded aluminum barrel includes dual sensor grooves, allowing for flexible mounting of reed or electronic switches if needed.
Airtac SAI50 Standard Cylinder SAI50AX250 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX250 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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 SAI50AX250
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×250 | 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 SAI50AX250 Is Used
Package Diverting
Provides the 982N force needed to push heavy cartons off a high-speed sorting conveyor belt.
Pallet Handling
Extends 250mm to lift or position medium-weight pallets within automated storage systems.
Clamping Fixtures
Holds workpieces securely in machining stations using its reliable double-acting extension.
Is the Airtac SAI50 Standard Cylinder SAI50AX250 the Right Cylinder?
Choose this 50mm bore when an application requires 982N of push force at 0.5 MPa, bridging the gap between the 40mm (628N) and 63mm (1559N) sizes. Because the 250mm stroke is substantial, long unsupported rods are susceptible to bending under side loads; utilize an external guide rail or a guided cylinder to prevent premature rod-bearing wear.
For setups needing to maintain position during a loss of air pressure, note that the standard adjustable air cushions only decelerate the piston at stroke ends and do not function as a locking mechanism. Consider the SAIL variant for pneumatic locking requirements. As a dimensionally interchangeable ISO 15552 profile cylinder, it serves as a direct replacement matching the 50mm bore, 250mm stroke, PT port, and standard mounting accessories.
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 SAI50AX250 FAQ
At an operating pressure of 0.5 MPa, the SAI50X250 generates a push force of 982N and a pull force of 825N. At 0.7 MPa, the push force increases to 1374N.
Yes, the SAI50X250 is a profile cylinder dimensionally interchangeable per ISO 15552. It matches standard mounting interfaces and can be used as a direct replacement for other ISO 15552 cylinders with a 50mm bore and 250mm stroke.
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