Airtac SAI50 Standard Cylinder SAI50AX70S
The AirTAC SAI50 Standard Cylinder SAI50AX70S 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 SAI50AX70S
The AirTAC SAI50X70-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 70 mm stroke is well-suited for short-travel clamping, lifting, and indexing tasks that require rapid cycling. The extruded aluminum barrel omits tie-rods, providing a clean exterior that simplifies mounting and sensor placement.
This specific configuration includes a -S magnet for direct compatibility with CMSE and DMSE series reed switches, which seat neatly into the dual sensor grooves machined along both sides of the barrel. It is built with an SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel, and utilizes PT tapered port threads to ensure a mechanically tight pneumatic connection.
Airtac SAI50 Standard Cylinder SAI50AX70S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX70S |
|---|---|
| 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 SAI50AX70S
| 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 SAI50AX70S Is Used
Short-Stroke Clamping
Provides 982 N of secure clamping force at 0.5 MPa for holding aluminum or steel workpieces during light milling and drilling operations.
Package Diverting
Extends 70 mm to actuate a routing pop-up arm, swiftly diverting small to medium cardboard cartons on a high-speed packaging line.
Component Ejection
Cycles rapidly to push molded plastic parts out of a fixture, utilizing the 30-800 mm/s speed range to minimize machine dwell time.
Is the Airtac SAI50 Standard Cylinder SAI50AX70S the Right Cylinder?
Select this 50 mm bore when an application demands more power than a 40 mm cylinder (628 N push at 0.5 MPa) but lacks the physical envelope for a 63 mm unit (1559 N). The 70 mm stroke provides just enough extension for compact ejection or gripping without wasting cycle time on excessive travel. Because the stroke is under 300 mm, rod-bearing bending is minimal, though external guides should still be used if the load is heavily off-center.
As a true ISO 15552 profile cylinder, this model serves as a direct replacement for any standard 50 mm bore cylinder sharing the same mounting interface, 200 mm stroke, G1/4 port, and accessory footprint (such as FA flange or LB foot brackets). Note that standard double-acting cylinders drift when air pressure is removed; if the machine requires true load holding upon pressure loss, specify the SAIL variant with an air-released lock or the BSAI clamp-lock version.
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 SAI50AX70S FAQ
At a standard operating pressure of 0.5 MPa, 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.
Yes. The SAI50X70-S is dimensionally interchangeable per ISO 15552. You can drop it into existing machinery matching the 50 mm bore, 70 mm stroke, G1/4 port, and standard mounting dimensions without altering the machine frame.
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