Airtac SAI50 Standard Cylinder SAI50AX25S
The AirTAC SAI50 Standard Cylinder SAI50AX25S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 25mm 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
- Stroke25 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 SAI50AX25S
The AirTAC SAI50X25-S is a double-acting ISO 15552 profile cylinder engineered for short-stroke automation. Operating at 0.5 MPa, it provides a push thrust of 982 N and a pull thrust of 825 N, making it well-suited for compact clamping and ejection tasks. The extruded aluminum barrel design omits tie rods, presenting a clean exterior that conforms to standardized ISO 15552 mounting dimensions.
This specific configuration includes a -S magnet for direct compatibility with CMSE and DMSE reed switches, utilizing the dual sensor grooves machined into both sides of the barrel. Furthermore, the piston rod is constructed from SUS420J2 stainless steel (material code A), offering enhanced resistance to moisture and wear compared to standard carbon steel. The pneumatic supply connects via PT tapered G1/4 ports.
Airtac SAI50 Standard Cylinder SAI50AX25S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX25S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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 SAI50AX25S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 SAI50AX25S Is Used
Short-Stroke Clamping
Ideal for securing workpieces during machining, utilizing the 25 mm stroke and 982 N of push force at 0.5 MPa for rapid, localized holding.
Product Ejection
Delivers quick, compact ejection of finished parts from conveyor lines, where the SUS420J2 stainless rod withstands repetitive dynamic contact.
Packaging Diverter
Provides precise pneumatic actuation for packaging line diverters, with the -S magnet enabling exact end-of-stroke position confirmation via CMSE sensors.
Is the Airtac SAI50 Standard Cylinder SAI50AX25S the Right Cylinder?
Selecting this 50 mm bore is optimal when a 40 mm bore (628 N push at 0.5 MPa) lacks the necessary power, but a 63 mm bore (1559 N push at 0.5 MPa) would be physically oversized for the envelope. The 25 mm stroke ensures rapid cycling for localized tasks. Because the standard SAI design relies on air pressure for movement, it cannot hold a load if supply pressure drops; for fail-safe holding, consider the SAIL variant with an air-released lock or a BSAI bidirectional clamp-lock. As a dimensionally interchangeable ISO 15552 profile cylinder, it serves as a direct replacement for other ISO 15552 cylinders without altering your existing mounting geometry.
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 SAI50AX25S FAQ
At an operating pressure of 0.5 MPa, the SAI50X25-S generates a push force of 982 N and a pull force of 825 N. At 0.7 MPa, the push force increases to 1374 N.
Yes, the SAI50X25-S is a genuine ISO 15552 profile cylinder. Its standardized mounting interface and envelope dimensions make it interchangeable with other ISO 15552 profile cylinders, allowing for seamless direct replacements.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI50 Standard Cylinder SAI50AX25S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.