Airtac SAI40 Standard Air Cylinder SAI40BX75
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40BX75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 SAI40BX75
The AirTAC SAI40X75 is a double-acting ISO 15552 profile cylinder engineered for standardized mounting. Delivering a push force of 879 N at 0.7 MPa, this 40mm bore unit is built around an extruded aluminum barrel without tie rods. The 75mm stroke provides compact actuation for mid-range automation tasks.
This specific configuration features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in humid or washdown environments. It utilizes PT tapered port threads and operates without a magnet. Standard adjustable air cushions at both ends absorb impact, while the barrel includes dual sensor grooves should you later need to add CMSE or DMSE switches.
Airtac SAI40 Standard Air Cylinder SAI40BX75 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAI40BX75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SAI40BX75 Is Used
Package Diverting
Provides the rapid 75mm stroke and 628 N push force at 0.5 MPa needed to actuate diverting arms on packaging conveyors.
Clamping Fixtures
Ideal for securing mid-sized components during machining, utilizing its SUS304 stainless rod to resist coolant corrosion.
Gate Control
Reliably opens and closes small material handling gates with adjustable end cushions to prevent slamming.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX75 the Right Cylinder?
Choose this 40mm bore when an application requires more power than a 32mm cylinder (which provides 563 N at 0.7 MPa) but lacks the physical space for a 50mm unit. The 75mm stroke is ideal for short, rapid movements. Because this standard cylinder exhausts to atmosphere, it cannot hold a load if air pressure drops; use a SAIL variant with an air-released lock or an external pilot check valve for fail-safe position holding.
To match this ISO 15552 dimensionally interchangeable cylinder, specify the 40mm bore, 75mm stroke, G1/4 (PT tapered) port, and your required mounting accessory like an FA flange or TC trunnion. Note that because -S is omitted, this exact SKU does not include a magnet for proximity sensing.
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 SAI40BX75 FAQ
At 0.7 MPa operating pressure, the SAI40X75 generates a push force of 879 N and a pull force of 528 N. At 0.5 MPa, the push force is 628 N.
Yes, the SAI40X75 is dimensionally interchangeable per ISO 15552. It shares the same mounting interface and G1/4 port size as other standard 40mm profile cylinders, allowing direct replacement.
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