Airtac SAI40 Standard Air Cylinder SAI40AX45S
The AirTAC SAI40 Standard Air Cylinder SAI40AX45S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 45mm 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
- Stroke45 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 SAI40AX45S
The AirTAC SAI40X45-S is a double-acting ISO 15552 profile cylinder engineered for compact, short-stroke automation. It provides a push force of 628 N and a pull force of 528 N at 0.5 MPa, making it well-suited for high-cycle clamping and ejecting tasks. The 45 mm stroke offers precise motion in tight machinery spaces without sacrificing structural stability.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. The integrated magnet (-S) allows direct mounting of CMSE or DMSE reed switches along the dual sensor grooves machined into the extruded aluminum barrel. Fluid porting is PT tapered thread, sized at G1/4 for optimal flow.
Airtac SAI40 Standard Air Cylinder SAI40AX45S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX45S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 45 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 SAI40AX45S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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 SAI40AX45S Is Used
Short-Stroke Clamping
Ideal for securing lightweight workpieces during machining, utilizing its 628 N push force within a compact 45 mm travel distance.
Package Ejector
Provides rapid, repetitive ejection of small parts or cartons on conveyor lines, benefiting from the 30-800 mm/s speed range.
Gate Diverter
Actuates sorting gates and small pneumatic doors where a space-saving profile barrel and precise endpoint detection are required.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX45S the Right Cylinder?
Choose this 40 mm bore when a 32 mm cylinder lacks sufficient thrust (402 N at 0.5 MPa) but a 50 mm bore is physically too large. The 45 mm stroke is non-standard but stays well within the 1200 mm maximum limit, providing a custom fit for specific tooling stops. Because the stroke is short, rod-bearing bending is negligible, eliminating the need for external guides.
For direct replacements, match the 40 mm bore, 45 mm stroke, G1/4 PT port, and desired mounting accessory like an FA flange or LB foot. Remember that standard double-acting cylinders drift if air pressure is lost; to hold a load securely without live pressure, select the SAIL locking variant or use an external pilot-operated check valve.
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 SAI40AX45S FAQ
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. If you increase the operating pressure to 0.7 MPa, the push force rises to 879 N.
Yes, the SAI40X45-S is dimensionally interchangeable per ISO 15552. You can use it as a direct replacement for other ISO 15552 profile cylinders with a 40 mm bore and 45 mm stroke, provided your port and mounting match.
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Covers non-human-caused product damage.
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