Airtac SAI40 Standard Air Cylinder SAI40BX350S
The AirTAC SAI40 Standard Air Cylinder SAI40BX350S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 350mm 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
- Stroke350 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 SAI40BX350S
The AirTAC SAI40X350-S is a double-acting ISO 15552 profile cylinder engineered for standardized mounting and reliable linear motion. Utilizing a 40mm bore, it generates 628N of push force and 528N of pull force at 0.5 MPa. The 350mm stroke provides ample extension for mid-range transfer and positioning tasks.
This variant is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance in humid or washdown environments. Equipped with a magnet (-S), it seamlessly integrates CMSE or DMSE sensor switches via the dual-sided extruded aluminum barrel grooves. Fluid ports feature PT tapered threading, and adjustable air cushions at both ends ensure smooth end-of-stroke deceleration.
Airtac SAI40 Standard Air Cylinder SAI40BX350S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX350S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 SAI40BX350S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 SAI40BX350S Is Used
Package Diversion
Provides the 350mm extension needed to push varying parcel sizes off a main conveyor belt line into sorting chutes.
Component Ejection
Exerts 628N of push force at 0.5 MPa to reliably eject molded or machined parts from a fixture during automated unloading.
Pallet Loading
Extends to position lightweight product layers onto multi-tier pallets within automated packaging cells.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX350S the Right Cylinder?
When evaluating this 40mm bore setup, consider stepping up to the 50mm bore if your application requires greater thrust, such as the 982N push force at 0.5 MPa available on the larger variant. Conversely, a 32mm bore offers a more compact 402N profile if spatial constraints are tight. Because this model features a 350mm stroke, the extended unsupported rod is susceptible to bending under side loads; utilizing an external guide rail or a guided cylinder module is strongly recommended to protect the rod bearing and maintain alignment.
If the machinery requires the load to remain securely suspended or locked in place during a complete loss of air pressure, a standard double-acting cylinder will drift. For fail-safe holding, specify the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. As a dimensionally interchangeable ISO 15552 profile cylinder, this unit serves as a direct replacement for other ISO 15552 cylinders, matching the 40mm bore, 350mm stroke, PT port, and standard mounting accessories like the FA flange or LB foot bracket.
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 SAI40BX350S FAQ
At an operating pressure of 0.5 MPa, the SAI40X350-S generates a push force of 628N and a pull force of 528N. If pressure is increased to 0.7 MPa, the push force rises to 879N.
Yes, the SAI40X350-S is built to ISO 15552 dimensional standards, making it a direct replacement for other ISO 15552 profile cylinders with a 40mm bore, 350mm stroke, and PT G1/4 ports.
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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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