
The AirTAC SAI40 Standard Air Cylinder SAI40AX150 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 150mm 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.
The AirTAC SAI40X150 is a double-acting ISO 15552 profile cylinder engineered to deliver 628N of push force at 0.5 MPa. Its 150mm stroke provides the precise mid-range travel needed for general automation tasks. The extruded aluminum barrel design integrates seamlessly with existing ISO 15552 mounting interfaces.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It utilizes PT tapered port threads and lacks a magnet, meaning it is optimized for pure pneumatic actuation without requiring internal position sensing.
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX150 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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.
| 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.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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.
Uses the 150mm stroke to push finished metal parts out of a machining center, relying on the 628N force to clear heavy chips.
Actuates a routing arm on a packaging line, deflecting cartons to secondary lanes with consistent mid-range thrust.
Drives a pneumatic clamping mechanism to hold workpieces securely during light assembly or welding operations.
When sizing this actuator, consider the neighboring bores: the SAI32 bore offers 402N push force at 0.5 MPa for lighter duties, while the SAI50 steps up to 982N for heavier cycles. To replace this unit, match the 40mm bore, 150mm stroke, PT G1/4 port, and the appropriate mounting accessory like an FA flange. Because no magnet is specified, position feedback requires external sensors.
If your mechanism must maintain its position during a complete air loss, remember that standard adjustable air cushions only decelerate the piston at stroke end. For true load holding, you must integrate an external pilot-operated check valve or transition to the SAIL locking variant.
Quick checklist
The SAI40X150 generates 628N of push force and 528N of pull force at a 0.5 MPa operating pressure. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI40X150 is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 profile cylinders, matching the 40mm bore, 150mm stroke, and G1/4 port.
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