Airtac SAI40 Standard Air Cylinder SAI40AX155
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40AX155 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 155mm 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
- Stroke155 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 SAI40AX155
The AirTAC SAI40X155 is a double-acting ISO 15552 profile cylinder featuring a non-standard 155mm stroke. It delivers a robust 628N push force at 0.5 MPa, making it a highly reliable choice for mid-range automation tasks.
Built with a SUS420J2 stainless steel piston rod (material code A), this model provides excellent corrosion resistance. It utilizes PT tapered port threads and lacks a standard magnet, meaning it is optimized purely for mechanical actuation rather than electronic position sensing.
Airtac SAI40 Standard Air Cylinder SAI40AX155 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX155 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 155 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 SAI40AX155
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×155 | 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 SAI40AX155 Is Used
Component Clamping
Provides 628N of push force at 0.5 MPa, ideal for securely clamping medium-sized metal components during machining operations.
Package Diverting
The 155mm stroke offers precise movement for diverting packages or actuating gates on automated conveyor lines.
Material Pushing
Excellent for pushing or positioning workpieces along production tracks where a robust 40mm bore is required.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX155 the Right Cylinder?
This 40mm bore generates 628N of push force at 0.5 MPa. If your application requires less force, consider stepping down to the 32mm bore (402N at 0.5 MPa); for heavier loads, the 50mm bore offers 982N. Because the 155mm stroke is a made-to-order length, expect extended lead times.
For strokes of 300mm or longer, side-load on the rod bearing becomes a critical factor. In such cases, utilize an external guide rail or switch to a guided cylinder to prevent rod bending and premature seal wear. To hold a load securely without live air pressure, integrate the SAIL locking variant or an external rod lock, as the standard air cushion only decelerates the piston at stroke end. This SAI40X155 is dimensionally interchangeable per ISO 15552 and can serve as a direct replacement for other ISO 15552 profile cylinders.
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 SAI40AX155 FAQ
The SAI40X155 cylinder provides a push force of 628N and a pull force of 528N at 0.5 MPa operating pressure.
Yes, as a genuine ISO 15552 profile cylinder, its mounting interface is dimensionally interchangeable with other ISO 15552 standard cylinders, allowing for seamless direct replacement.
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.
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