Airtac SAI50 Standard Cylinder SAI50AX70
The AirTAC SAI50 Standard Cylinder SAI50AX70 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 70mm 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
- Stroke70 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 SAI50AX70
The AirTAC SAI50X70 is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. With a 50 mm bore and 70 mm stroke, it provides compact linear motion for mid-range automation tasks. The extruded aluminum barrel design omits tie rods, resulting in a cleaner profile that drops directly into standardized ISO 15552 mounting interfaces.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It utilizes PT tapered port threads and lacks a standard magnet. For high-temperature environments up to 70 C, the standard TPU seals provide reliable operation, though Viton (H) alternatives are available for more extreme thermal demands.
Airtac SAI50 Standard Cylinder SAI50AX70 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX70 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 70 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 SAI50AX70
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×70 | 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 SAI50AX70 Is Used
Part Ejection
Provides a swift 70 mm kick to eject finished machined components from a fixture, utilizing 982 N of thrust to overcome binding friction.
Package Diverting
Actuates a routing gate on a packaging line, where the short stroke and mid-range force reliably redirect cartons without lag.
Clamping Jigs
Secures sheet metal or wood panels during secondary processing, applying consistent 0.5 MPa clamping force via the SUS420J2 rod.
Is the Airtac SAI50 Standard Cylinder SAI50AX70 the Right Cylinder?
Selecting this 50 mm bore is ideal when the 40 mm version (628 N at 0.5 MPa) lacks sufficient thrust, but the 63 mm bore (1559 N) would be physically oversized. The 70 mm stroke offers a short, snappy extension suitable for clamping or ejecting. Because the stroke is under 300 mm, side-load stress on the rod bearing is minimal, though external guides should still be used for heavy off-center loads.
This cylinder does not hold its position if air pressure is lost; the piston will drift when exhaust or valve centering occurs. For applications requiring dead-stop holding under zero pressure, specify the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. To replace an existing ISO 15552 unit, match the 50 mm bore, 70 mm stroke, G1/4 port, and appropriate mounting accessories like FA flange or LB foot brackets.
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 SAI50AX70 FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X70 is dimensionally interchangeable per ISO 15552 standards. You can drop it in as a replacement for other ISO 15552 profile cylinders with a 50 mm bore and 70 mm stroke, provided you match the G1/4 port and mounting interface.
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