Airtac SAI40 Standard Air Cylinder SAI40AX30S
The AirTAC SAI40 Standard Air Cylinder SAI40AX30S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- 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 SAI40AX30S
The AirTAC SAI40X30-S is a double-acting ISO 15552 profile cylinder engineered for compact actuation, delivering 628N of push force and 528N of pull force at 0.5 MPa. Its 30mm stroke makes it highly effective for short-travel clamping, ejecting, and gating tasks where space is strictly limited.
This specific configuration features an SUS420J2 stainless steel rod (option A) for superior corrosion resistance in humid or mildly chemically exposed environments. It also includes a built-in magnet (-S) that interfaces directly with CMSE or DMSE reed switches housed in the barrel's dual-side sensor grooves. Threaded ports are PT (tapered) to ensure robust, leak-free pneumatic connections.
Airtac SAI40 Standard Air Cylinder SAI40AX30S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX30S |
|---|---|
| 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 SAI40AX30S
| 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 SAI40AX30S Is Used
Short-Stroke Part Ejection
Ideal for knocking finished parts out of a machining fixture, utilizing the 628N push force and 30mm travel to deliver quick, precise ejections.
Package Diverter Gate
Provides rapid actuation for pneumatic routing gates on conveyor lines, where the compact 30mm stroke and integrated sensor magnet ensure reliable position confirmation.
Small Component Clamping
Well-suited for holding lightweight workpieces during light assembly or machining, taking advantage of the SUS420J2 stainless steel rod in potentially humid shop environments.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX30S the Right Cylinder?
Choose this 40mm bore when a 32mm bore (402N push at 0.5 MPa) lacks the necessary thrust, but you want to avoid the larger footprint and air consumption of a 50mm bore (982N push at 0.5 MPa). The 30mm stroke is optimal for high-cycle, short-throw operations. Because the stroke is well under 300mm, rod-bearing bending stress is minimal, though external guides should still be used to manage any slight lateral loads.
As a true ISO 15552 profile cylinder, it serves as a direct replacement for other ISO 15552 cylinders, matching standard mounting dimensions. To complete your assembly, pair it with an FA or FB flange, or an LB foot bracket. Remember that this standard cylinder relies on adjustable air cushions at both ends to decelerate the piston; it does not hold loads safely on loss of air pressure. For position holding without live pressure, consider the SAIL locking variant or 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 SAI40AX30S FAQ
At an operating pressure of 0.5 MPa, this 40mm bore double-acting cylinder generates 628N of push force and 528N of pull force. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI40X30-S is dimensionally interchangeable per ISO 15552 mounting interface standards. You can use it as a direct replacement for other ISO 15552 profile cylinders with a 40mm bore and 30mm stroke, matching PT port and standard accessory dimensions.
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