Airtac SAI50 Standard Cylinder SAI50BX155
The AirTAC Airtac SAI50 Standard Cylinder SAI50BX155 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 155mm 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
- Stroke155 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 SAI50BX155
The AirTAC SAI50X155 is a double-acting ISO 15552 profile cylinder offering a push force of 982 N and a pull force of 825 N at 0.5 MPa. Its 155 mm stroke is well-suited for mid-range automation tasks requiring reliable linear motion. The extruded aluminum barrel design omits tie rods, providing a clean exterior that resists contamination.
This specific configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance in humid or washdown environments. It utilizes PT tapered port threads and does not include a magnet, meaning it is optimized for pure actuation rather than position sensing.
Airtac SAI50 Standard Cylinder SAI50BX155 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX155 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 155 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 SAI50BX155
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×155 | 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 SAI50BX155 Is Used
Component Insertion
Provides 982 N of thrust at 0.5 MPa to press bearings or pins into housings on an automated assembly line.
Package Diverting
Actuates a routing gate to sort medium-weight packages along a material handling conveyor system.
Clamp Mechanisms
Secures aluminum extrusions or steel plates during machining operations using a 155 mm stroke.
Is the Airtac SAI50 Standard Cylinder SAI50BX155 the Right Cylinder?
With 982 N of push force at 0.5 MPa, this 50 mm bore cylinder handles moderate loads effectively. If your application requires less force, stepping down to the 40 mm bore yields 628 N, while moving up to the 63 mm bore provides 1559 N for heavier demands. For this 155 mm stroke, side-load is minimal, but always ensure proper alignment to prevent premature rod-bearing wear.
Because this is a double-acting pneumatic actuator, it will not hold a load if air pressure is lost or exhausted; the piston will drift. If your machinery requires true position holding without live pressure, consider the SAIL (air-released lock) variant or an external pilot-operated check valve. To replace an existing unit, match the 50 mm bore, 155 mm stroke, G1/4 port, and appropriate mounting accessories like FA/FB flanges.
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 SAI50BX155 FAQ
At a standard operating pressure of 0.5 MPa, the SAI50X155 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 SAI50X155 is a genuine ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 cylinders from brands like Festo or SMC. Ensure your port size (G1/4) and mounting accessories match your existing fixture.
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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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