Airtac SAI40 Standard Air Cylinder SAI40BX45
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40BX45 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 SAI40BX45
The AirTAC SAI40X45 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa. Its 45 mm stroke is a custom made-to-order dimension tailored for compact actuation where standard 50 mm strokes would bottom out. This profile barrel design omits tie rods, providing a smooth exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
Built for demanding environments, this specific configuration features a SUS304 stainless steel piston rod for superior corrosion resistance. It utilizes PT tapered port threads and excludes a magnet. For high-temperature environments up to +70 C, the standard TPU seals provide reliable operation, though Viton (H) alternatives are available if thermal limits are extended.
Airtac SAI40 Standard Air Cylinder SAI40BX45 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX45 |
|---|---|
| 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 SAI40BX45
| 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 SAI40BX45 Is Used
Compact Clamping
Ideal for securing small machined parts during milling or drilling where a 45 mm stroke provides precise clamping without overtravel.
Package Diversion
Suited for short-stroke diverting arms on conveyor lines, pushing lightweight cartons into secondary packaging lanes.
Valve Actuation
Provides reliable linear motion for actuating small process valves or opening gates in localized fluid control systems.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX45 the Right Cylinder?
Selecting this 40 mm bore over the smaller 32 mm variant upgrades your push force from 402 N to 628 N at 0.5 MPa, while stepping up to the 63 mm bore yields 1559 N if your load requires significantly more power. The 45 mm stroke is non-standard, so verify your exact end-of-stroke clearance requirements.
As a standard double-acting cylinder, the SAI40X45 relies on live air pressure to maintain its position. If air is exhausted or pressure drops, the piston will drift. For applications requiring position holding without constant air pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. Mounting accessories include LB (foot), FA/FB (flange), and CA/CB (clevis) styles.
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 SAI40BX45 FAQ
The SAI40X45 cylinder provides a push force of 628 N and a pull force of 528 N at 0.5 MPa. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X45 is a profile cylinder with an ISO 15552 mounting interface, making it dimensionally interchangeable with other ISO 15552 cylinders. It features a PT tapered port thread.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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