Airtac SAI40 Standard Air Cylinder SAI40AX185
The AirTAC SAI40 Standard Air Cylinder SAI40AX185 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 185mm 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
- Stroke185 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 SAI40AX185
The AirTAC SAI40X185 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa. With a 40 mm bore and 185 mm stroke, it fits perfectly into mid-range automation tasks requiring consistent linear motion. The extruded aluminum barrel design omits external tie rods, providing a clean exterior that resists mechanical snagging in tight machine layouts.
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 standard magnet, meaning it is optimized for purely mechanical actuation without proximity sensor tracking.
Airtac SAI40 Standard Air Cylinder SAI40AX185 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX185 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 185 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 SAI40AX185
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×185 | 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 SAI40AX185 Is Used
Component Ejection
Provides 628 N of push force at 0.5 MPa to reliably eject finished metal components from machining centers.
Package Diverting
The 185 mm stroke offers the precise linear travel needed to divert medium-weight packages on a sorting conveyor line.
Clamp Actuation
Ideal for driving pneumatic clamps on welding fixtures, utilizing the SUS420J2 rod to withstand harsh shop environments.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX185 the Right Cylinder?
Choose this 40 mm bore when an application requires roughly 600 N of push force at 0.5 MPa, stepping up from the 32 mm bore (402 N) for heavier payloads, or stepping down from the 50 mm bore (982 N) to save valuable space and air consumption. Because the stroke is 185 mm, it is short enough to avoid severe rod-bearing bending under normal side loads, though external guides are always recommended if the load is offset.
As a true ISO 15552 profile cylinder, it serves as a direct replacement for other ISO 15552 cylinders with matching 40 mm bore, 185 mm stroke, G1/4 port, and PT thread specifications. If your system loses air pressure, this standard cylinder cannot hold a load in place; for vertical load-holding without live pressure, specify the SAIL (air-released lock) or BSAI (clamp-lock) variant instead.
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 SAI40AX185 FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder generates 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 SAI40X185 is a genuine ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke. It uses a G1/4 port and PT tapered threads.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI40 Standard Air Cylinder SAI40AX185
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.