Airtac SAI50 Standard Cylinder SAI50AX125
The AirTAC SAI50 Standard Cylinder SAI50AX125 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 125mm 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
- Stroke125 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 SAI50AX125
The AirTAC SAI50X125 is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 125 mm stroke provides the exact mid-range travel needed for clamping, lifting, and indexing tasks in automated machinery.
This specific configuration utilizes a SUS420J2 stainless steel piston rod for superior corrosion resistance compared to standard carbon steel. It features PT tapered port threads and an extruded aluminum barrel with dual sensor grooves, allowing for flexible switch mounting when a magnet is added.
Airtac SAI50 Standard Cylinder SAI50AX125 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX125 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 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 SAI50AX125
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | 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 SAI50AX125 Is Used
Parts Clamping
Provides 825 N of pull force at 0.5 MPa, ideal for securely holding workpieces during machining or welding operations.
Package Diverting
The 125 mm stroke offers precise movement for actuating diverters and routing arms on medium-duty packaging lines.
Material Lifting
Generates sufficient thrust to elevate small platforms or lift gates in automated assembly equipment.
Is the Airtac SAI50 Standard Cylinder SAI50AX125 the Right Cylinder?
Select this 50 mm bore when an application requires more power than a 40 mm cylinder (which provides 628 N at 0.5 MPa) but without the bulk of a 63 mm unit. The 125 mm stroke is a standard dimension, making it dimensionally interchangeable with other ISO 15552 cylinders using identical mounting accessories like FA flanges or LB foot brackets.
Because this is a standard double-acting cylinder, it relies on continuous air pressure to move and will not hold a load if pressure is lost or exhausted. If your application requires static position holding during an air failure, consider the SAIL variant with an air-released lock or an external rod lock.
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 SAI50AX125 FAQ
At an operating pressure of 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
Yes, the SAI50X125 shares the exact ISO 15552 mounting interface and dimensions, allowing it to serve as a direct replacement for other standard profile cylinders with matching PT port threads and FA/LB accessories.
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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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