Airtac SAI40 Standard Air Cylinder SAI40BX375
The AirTAC SAI40 Standard Air Cylinder SAI40BX375 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 375mm 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
- Stroke375 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 SAI40BX375
The AirTAC SAI40X375 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 375mm stroke. It delivers a push force of 628N at 0.5 MPa and 879N at 0.7 MPa, making it well-suited for mid-range actuation tasks requiring a longer travel distance.
This specific configuration incorporates a SUS304 stainless steel rod for enhanced corrosion resistance and includes PT tapered port threads. Note that because a magnet is not specified, it cannot be used with CMSE or DMSE sensor switches.
Airtac SAI40 Standard Air Cylinder SAI40BX375 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX375 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 375 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 SAI40BX375
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×375 | 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 SAI40BX375 Is Used
Material Handling
Drives 375mm stroke diverters and package stops on sorting lines where 879N push force at 0.7 MPa is sufficient.
Assembly Automation
Actuates mid-sized pneumatic presses and component insertion fixtures requiring reliable linear motion over an extended stroke.
Packaging Equipment
Extends sealing jaws and film cutters, benefiting from the SUS304 rod option in environments with occasional washdowns.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX375 the Right Cylinder?
If your application requires less force, stepping down to a 32mm bore yields 563N at 0.7 MPa, while stepping up to a 50mm bore provides 1374N at 0.7 MPa. At a 375mm stroke, the unsupported rod is highly susceptible to bending under side loads; utilizing an external guide rail or a fully guided cylinder is strongly recommended to prevent premature rod-bearing wear.
Being dimensionally interchangeable per ISO 15552, this cylinder serves as a direct replacement for other ISO 15552 profile cylinders. Matching mounting accessories include LB foot, FA/FB flange, or TC trunnion options. If the machinery loses air pressure, this standard cylinder cannot hold a load; for position holding, consider the SAIL lock or BSAI clamp-lock variant.
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 SAI40BX375 FAQ
The SAI40X375 provides a push force of 628N at 0.5 MPa and 879N at 0.7 MPa, with a pull force of 528N at 0.5 MPa.
Yes, the SAI40X375 is a profile barrel cylinder dimensionally interchangeable per ISO 15552, allowing it to serve as a direct replacement for other standard ISO 15552 cylinders.
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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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