Airtac SAI40 Standard Air Cylinder SAI40X30S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 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 SAI40X30S
The AirTAC SAI40X30-S is a double-acting ISO 15552 profile cylinder engineered for compact, high-cycle automation. Delivering a push force of 628 N at 0.5 MPa, this 40 mm bore unit is tailored for short 30 mm stroke movements. Its extruded aluminum barrel omits tie rods to provide a clean, standardized mounting interface that drops directly into ISO 15552 machinery footprints.
This specific configuration includes a magnet for position sensing and utilizes a standard carbon steel piston rod. The barrel features integrated sensor grooves on both sides, allowing seamless installation of CMSE or DMSE reed switches without requiring additional brackets. Fluid must be filtered air at 40 um, operating within a temperature range of -20 to +70 C.
Airtac SAI40 Standard Air Cylinder SAI40X30S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 SAI40X30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SAI40X30S Is Used
Short-Stroke Clamping
Ideal for securing workpieces in machining fixtures where a 628 N push force at 0.5 MPa provides firm holding without deforming the part.
Package Diverting
Executes rapid 30 mm sorting movements on conveyor lines, utilizing the integrated magnet and CMSE sensors to confirm divert positions instantly.
Gate Ejection
Powers small ejection gates in automated assembly machinery, taking advantage of the 30-800 mm/s speed range to cycle parts out quickly.
Is the Airtac SAI40 Standard Air Cylinder SAI40X30S the Right Cylinder?
Select this 40 mm bore when an application demands more thrust than a 32 mm bore (which provides 402 N at 0.5 MPa) but remains constrained by tight spatial limits. The 30 mm stroke is optimal for gripping, clamping, or short ejection tasks. Because the stroke is short, side-load stress on the rod bearing is minimal compared to longer strokes.
For drop-in replacements, match the 40 mm bore, 30 mm stroke, G1/4 PT port, and desired mounting accessory (such as LB foot or FA flange). Remember to include the -S magnet requirement if using CMSE or DMSE sensors. Note that standard air cushions only decelerate the piston near stroke end; they do not hold a load. If the system loses air pressure, the rod will drift. Use a SAIL lock variant or external pilot check valve for position holding.
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 SAI40X30S FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides a push force of 628 N and a pull force of 528 N. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X30-S is dimensionally interchangeable per ISO 15552. You can drop it into existing ISO 15552 mounting footprints by matching the 40 mm bore, 30 mm stroke, and G1/4 port.
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