Airtac SAI40 Standard Air Cylinder SAI40BX120S
The AirTAC SAI40 Standard Air Cylinder SAI40BX120S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 120mm 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
- Stroke120 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 SAI40BX120S
The AirTAC SAI40X120-S is a double-acting ISO 15552 profile cylinder offering 628N of push force and 528N of pull force at 0.5 MPa. Its 120mm stroke is well-suited for compact clamping and mid-range linear positioning tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that resists debris buildup.
This specific configuration includes a SUS304 stainless steel piston rod for superior corrosion resistance in humid or washdown environments. It features a built-in magnet for use with CMSE and DMSE series sensor switches, and utilizes PT tapered port threads to ensure a robust pneumatic seal.
Airtac SAI40 Standard Air Cylinder SAI40BX120S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX120S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 120 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 SAI40BX120S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×120 | 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 SAI40BX120S Is Used
Compact Part Clamping
Provides 628N of push force at 0.5 MPa, ideal for securing medium-sized aluminum or composite workpieces during machining and assembly operations.
Package Diverting
The 120mm stroke offers precise actuation for sorting arms and diverter gates on moderate-speed packaging lines handling up to 800mm/s.
Material Push-off
Effectively ejects molded plastic parts or stamped metal components from press beds, utilizing the SUS304 rod to resist environmental moisture.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX120S the Right Cylinder?
If an application requires less force, stepping down to a 32mm bore yields 402N at 0.5 MPa, while a 50mm bore upgrade provides 982N for heavier loads. The 120mm stroke falls below the 300mm threshold, so standard rod-bearing bending is minimal, but external guides should still be used to absorb any direct lateral loads.
Because it is a double-acting pneumatic actuator, this cylinder will drift if air pressure is lost or the control valve is centered. For operations that demand strict position holding without live pressure, consider the SAIL locking variant or an external pilot-operated check valve. This unit mounts directly to any ISO 15552 interface using standard FA, LB, or TC 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 SAI40 Standard Air Cylinder SAI40BX120S FAQ
At a standard operating pressure of 0.5 MPa, this 40mm bore cylinder generates 628N of push force and 528N of pull force. It can reach up to 879N of push force at 0.7 MPa.
Yes. The SAI40X120-S is built to the ISO 15552 standard, making its mounting dimensions fully interchangeable with other ISO 15552 profile cylinders of the same bore size, regardless of the original brand.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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