Airtac SAI50 Standard Cylinder SAI50AX55
The AirTAC Airtac SAI50 Standard Cylinder SAI50AX55 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 55mm 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
- Stroke55 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 SAI50AX55
The AirTAC SAI50X55 is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 982 N at 0.5 MPa. Its 55 mm stroke provides a compact extension distance perfectly suited for short-cycle clamping and ejection tasks on automated machinery.
Built with an extruded aluminum barrel, this unit features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid environments. It utilizes PT tapered port threads and includes adjustable air cushions at both ends to manage impact deceleration smoothly.
Airtac SAI50 Standard Cylinder SAI50AX55 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX55 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 55 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 SAI50AX55
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×55 | 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 SAI50AX55 Is Used
Short-Stroke Clamping
Ideal for securing lightweight metal or composite parts during machining operations where a 982 N clamping force is sufficient.
Package Ejection
Provides rapid, short-distance pushing power to divert or eject packages from a conveyor line into a secondary packaging station.
Gate Diverting
Actuates small pneumatic gates and diverters on processing lines, utilizing its 55 mm stroke to shift product flow efficiently.
Is the Airtac SAI50 Standard Cylinder SAI50AX55 the Right Cylinder?
Selecting this bore size makes sense when a 40 mm bore (628 N at 0.5 MPa) lacks the necessary push strength but stepping up to a 63 mm bore (1559 N) would be physical overkill for the machine envelope. The 55 mm stroke is highly efficient for tight spacing.
Because this is a standard double-acting cylinder, it relies entirely on continuous air pressure to hold its load; if air is exhausted, the piston will drift. For applications requiring strict position holding without live pressure, consider the SAIL locking variant. To mount this as a direct replacement, match the 50 mm bore, 55 mm stroke, G1/4 port, and any standard ISO 15552 accessory like an FA flange or LB foot bracket.
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 SAI50AX55 FAQ
At an operating pressure of 0.5 MPa, this 50 mm bore cylinder generates a push force of 982 N and a pull force of 825 N. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes. The SAI50X55 is dimensionally interchangeable per ISO 15552. As long as your existing cylinder follows the ISO 15552 mounting interface, it can serve as a direct replacement.
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Covers non-human-caused product damage.
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