Airtac SAI50 Standard Cylinder SAI50AX85
The AirTAC Airtac SAI50 Standard Cylinder SAI50AX85 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 85mm 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
- Stroke85 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 SAI50AX85
The AirTAC SAI50X85 is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 85 mm stroke provides precise linear movement for medium-duty handling tasks.
Built with a SUS420J2 stainless steel piston rod, this variant offers superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel features sensor grooves on both sides, allowing direct mounting of CMSE or DMSE switches if a magnet is added later.
Airtac SAI50 Standard Cylinder SAI50AX85 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX85 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 85 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 SAI50AX85
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×85 | 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 SAI50AX85 Is Used
Package Diverting
Provides the reliable 982 N push force needed to actuate diverter arms on high-speed packaging conveyors.
Component Pressing
The 85 mm stroke delivers controlled clamping pressure for light assembly and pressing tasks within automated cells.
Material Handling
Ideal for lifting and indexing moderate loads, utilizing the standardized ISO 15552 interface for easy fixture integration.
Is the Airtac SAI50 Standard Cylinder SAI50AX85 the Right Cylinder?
This 50 mm bore provides a balanced step between the 40 mm bore (628 N at 0.5 MPa) and the larger 63 mm bore (1559 N at 0.5 MPa). 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.
As a standard double-acting cylinder, it relies on live air pressure to maintain position. If your application requires the load to be held mechanically during pressure loss, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. The PT tapered port threads and standard ISO 15552 mounting dimensions ensure straightforward direct compatibility with existing foot (LB) or flange (FA) accessories.
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 SAI50AX85 FAQ
At an operating pressure of 0.5 MPa, the SAI50X85 generates 982 N of push force and 825 N of pull force. It can reach up to 1767 N at 0.9 MPa.
Yes, the SAI50X85 is dimensionally interchangeable per ISO 15552, allowing it to serve as a direct replacement for other standard profile cylinders using the same mounting interface and G1/4 port.
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1-Year Warranty
Covers non-human-caused product damage.
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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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