Airtac SAI40 Standard Air Cylinder SAI40X5
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X5 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 5mm 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
- Stroke5 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 SAI40X5
The AirTAC SAI40X5 is a double-acting ISO 15552 profile cylinder engineered for ultra-short actuation. Delivering 628 N of push force at 0.5 MPa, this 40 mm bore unit is designed for high-cycle clamping and holding tasks where absolute minimal movement is required. The extruded aluminum barrel omits tie-rods, presenting a clean exterior that drops directly into standard ISO 15552 mounting interfaces.
Equipped with a standard carbon steel piston rod and PT tapered port threads, it integrates seamlessly into existing pneumatic infrastructures. The standard TPU seals handle ambient temperatures up to 70 C, while adjustable air cushions at both ends protect the internal components from impact, even at this micro stroke length.
Airtac SAI40 Standard Air Cylinder SAI40X5 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X5 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 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 SAI40X5
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×5 | 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 SAI40X5 Is Used
Micro-Clamping
Applies 628 N of force to hold delicate machined components firmly in place during high-speed CNC milling operations without crushing the part.
Pallet Stops
Extends a 5 mm nub to halt lightweight packaging pallets on an assembly line conveyor, ensuring precise positioning for downstream tooling.
Ejector Pins
Delivers rapid, short-thrust pulses to eject small plastic molded parts from a die cavity without requiring a full stroke cylinder footprint.
Is the Airtac SAI40 Standard Air Cylinder SAI40X5 the Right Cylinder?
Selecting the SAI40X5 is ideal when a system requires holding pressure against a fixed stop rather than performing a full traversal. If an application demands slightly higher clamping force, stepping up to the 50 mm bore yields 982 N at 0.5 MPa. Conversely, downsizing to the 32 mm bore reduces the footprint while still providing 402 N of push force.
Because this standard cylinder vents exhaust air to shift direction, it cannot hold a load mechanically if air pressure drops. For tasks requiring true position maintenance without live pressure, consider the SAIL locking variant or an external pilot-operated check valve. Replacement mounting requires matching the 40 mm bore, 5 mm stroke, G1/4 port, and appropriate FA or LB accessories.
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 SAI40X5 FAQ
At a standard operating pressure of 0.5 MPa, the SAI40X5 provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X5 is dimensionally interchangeable per ISO 15552 standards. It serves as a direct drop-in replacement for other ISO 15552 profile cylinders of the same bore size, maintaining identical mounting dimensions.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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