Airtac SAI40 Standard Air Cylinder SAI40X65S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X65S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 65mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke65 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 SAI40X65S
The AirTAC SAI40X65-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 65mm stroke. It delivers a push force of 628 N and a pull force of 528 N at 0.5 MPa, making it well-suited for compact mid-range actuation tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior while maintaining strict dimensional interchangeability per ISO 15552.
Configured with a standard carbon steel piston rod and a built-in magnet (-S), this model directly supports CMSE and DMSE electronic sensor switches via the dual integrated grooves on the barrel. For environments requiring high-temperature resistance, the standard TPU seals can be swapped for Viton (H) options, expanding the cylinder's operational versatility.
Airtac SAI40 Standard Air Cylinder SAI40X65S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X65S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 65 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 SAI40X65S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×65 | 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 SAI40X65S Is Used
Packaging Diverter
Executes rapid 65mm diverting motions on packaging lines, utilizing the 628 N push force at 0.5 MPa to shift lightweight cardboard cartons efficiently.
Pallet Stopper
Acts as a compact pneumatic stopper for pallets in conveyor systems, using the integrated magnet and CMSE sensors to confirm stopper position.
Component Clamping
Provides reliable mid-force clamping for small machined parts during light drilling or assembly, benefiting from the adjustable air cushions at both ends.
Is the Airtac SAI40 Standard Air Cylinder SAI40X65S the Right Cylinder?
When selecting this cylinder, consider stepping up to the 50mm bore if your application requires a higher push force of 982 N at 0.5 MPa. Because the 65mm stroke is relatively short, rod-bearing bending from side loads is minimal, but always ensure axial load alignment to maximize seal life. The PT (tapered) port thread matches the G1/4 specification for this bore size.
This SAI40X65-S is dimensionally interchangeable with other ISO 15552 profile cylinders, serving as a drop-in replacement. It includes a magnet for position sensing. Note that standard air cushions only decelerate the piston near the stroke ends; if the application must hold a load mechanically without air pressure, utilize the SAIL (lock) or BSAI (clamp-lock) variant instead of relying on a plain SAI.
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 SAI40X65S FAQ
At 0.5 MPa operating pressure, the SAI40X65-S provides a push (extend) force of 628 N and a pull (retract) force of 528 N. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X65-S is a genuine ISO 15552 profile cylinder. Its standardized mounting interface and dimensions make it a drop-in replacement for other ISO 15552 cylinders, ensuring seamless integration.
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