Airtac SAI40 Standard Air Cylinder SAI40BX190
The AirTAC SAI40 Standard Air Cylinder SAI40BX190 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 190mm 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.
- BoreØ40 mm
- Stroke190 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- 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 SAI40 Standard Air Cylinder SAI40BX190
The AirTAC SAI40X190 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa. Its 190 mm stroke provides the extended travel needed for mid-range positioning tasks. Built with a tie-rod-less extruded aluminum barrel, it offers a clean profile while maintaining strict dimensional interchangeability with other ISO 15552 cylinders.
This specific configuration features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in humid or washdown environments. It utilizes PT tapered port threads and does not include a magnet. For applications requiring heat resistance, the standard TPU seals can be swapped for Viton (H) to handle higher operating temperatures.
Airtac SAI40 Standard Air Cylinder SAI40BX190 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX190 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 190 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI40 Standard Air Cylinder SAI40BX190
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×190 | 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 SAI40 Standard Air Cylinder SAI40BX190 Is Used
Component Clamping
Provides 528 N of pull force at 0.5 MPa, ideal for securely holding aluminum or composite parts during light machining and assembly.
Package Diverting
The 190 mm stroke actuates diverter arms on packaging lines, moving cartons between parallel conveyor belts with precise timing.
Gate Operation
Drives small access gates and machine safety doors, utilizing the SUS304 rod to withstand occasional washdowns in food processing facilities.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX190 the Right Cylinder?
Select this 40 mm bore when a 32 mm bore (providing 402 N at 0.5 MPa) lacks the necessary thrust, but you want to avoid the larger footprint of a 50 mm bore (982 N at 0.5 MPa). The 190 mm stroke is well below the 1200 mm maximum standard stroke, keeping the assembly compact. Because this is a double-acting cylinder, air drives the piston in both directions.
If your fixture loses air pressure, the standard SAI cannot hold its load and will drift; use the SAIL variant with an air-released lock or an external pilot check valve for fail-safe positioning. To replace an existing ISO 15552 unit, match the 40 mm bore, 190 mm stroke, G1/4 port, and your required mounting accessory (such as FA flange or TC trunnion).
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 SAI40 Standard Air Cylinder SAI40BX190 FAQ
At an operating pressure of 0.7 MPa, the SAI40X190 generates 879 N of push force and 738 N of pull force. At 0.5 MPa, it provides 628 N push and 528 N pull.
Yes, the SAI40X190 is dimensionally interchangeable per ISO 15552. You can use it as a direct replacement for other ISO 15552 profile cylinders by matching the 40 mm bore, 190 mm stroke, and G1/4 port size.
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