Airtac SAI50 Standard Cylinder SAI50AX425
The AirTAC SAI50 Standard Cylinder SAI50AX425 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 425mm 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
- Stroke425 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 SAI50AX425
The AirTAC SAI50X425 is a double-acting ISO 15552 profile cylinder delivering 982 N of push force at 0.5 MPa. Its 425 mm stroke suits extended traversing tasks, while the extruded aluminum barrel omits tie-rods for a clean exterior. This genuine AirTAC unit ensures reliable linear motion.
For demanding environments, the piston rod is constructed from SUS420J2 stainless steel (option A), offering superior corrosion resistance compared to standard carbon steel. The barrel features dual-sided sensor grooves, ready for CMSE or DMSE switches if a magnet is added later.
Airtac SAI50 Standard Cylinder SAI50AX425 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX425 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 425 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 SAI50AX425
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×425 | 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 SAI50AX425 Is Used
Material Handling
Drives extended-length product pushers and package diverters across 425 mm gaps on processing lines.
Automated Assembly
Actuates multi-stage tooling platforms where 982 N of thrust is required to shift sub-components into working position.
Logistics Sorting
Powers long-throw routing gates and lifting stops in high-speed distribution hubs.
Is the Airtac SAI50 Standard Cylinder SAI50AX425 the Right Cylinder?
Choose this 50 mm bore when a 40 mm bore (628 N at 0.5 MPa) lacks the thrust for your load, but a 63 mm bore (1559 N) would be physically oversized. At 425 mm of travel, the unsupported piston rod is highly susceptible to bending under side loads. To prevent premature seal failure and rod bearing wear, mount external guide rails or employ a fully guided cylinder mechanism.
As a true ISO 15552 standard cylinder, it provides a direct mounting interface replacement for comparable 50 mm profile cylinders. It uses a PT tapered G1/4 port and accepts standard FA/FB flange or TC trunnion accessories. Note that the adjustable air cushions only decelerate the piston at stroke ends; they do not lock the load. If pressure drops, the rod will drift. Use the SAIL variant or an external pilot check valve for position holding.
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 SAI50AX425 FAQ
At 0.5 MPa operating pressure, 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.
No. The adjustable air cushions only decelerate the piston near the stroke ends and do not act as a brake. If air pressure is exhausted, the rod will drift or drop. For fail-safe load holding, use the SAIL locking cylinder variant or an external pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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