Airtac SAI40 Standard Air Cylinder SAI40X300
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X300 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 300mm 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
- Stroke300 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 SAI40X300
The AirTAC SAI40X300 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 300mm stroke. It generates 628N of push force at 0.5MPa and 879N at 0.7MPa, making it a robust choice for medium-duty automation tasks.
This variant features a standard carbon steel piston rod and a tapered PT port thread. Because it lacks the -S magnet option, it does not integrate with CMSE or DMSE reed sensors. For applications needing end-of-stroke confirmation, consider selecting the -S variant or external proximity switches.
Airtac SAI40 Standard Air Cylinder SAI40X300 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X300 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 SAI40X300
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 SAI40X300 Is Used
Material Handling
Ideal for pushing packages or diverting items on 300mm conveyor lines where 879N of thrust provides reliable actuation.
Assembly Automation
Executes 300mm press or clamping operations in automated cells, utilizing adjustable air cushions to absorb end-of-stroke impact.
Packaging Machinery
Suitable for actuating packaging flaps or product stops over a 300mm distance, taking advantage of the standardized ISO 15552 mounting interface.
Is the Airtac SAI40 Standard Air Cylinder SAI40X300 the Right Cylinder?
If your application requires less force, the 32mm bore offers 563N at 0.7MPa, while stepping up to the 50mm bore provides 1374N. At 300mm of travel, the unsupported piston rod is susceptible to bending under side loads. To prevent premature seal wear and rod-bearing failure, pair this cylinder with an external linear guide or use a guided cylinder assembly.
This model uses a G1/4 port and provides drop-in dimensional interchangeability with other ISO 15552 profile cylinders. It does not hold loads safely without sustained air pressure; if power loss occurs, the piston will drift. For fail-safe load holding, specify the SAIL or BSAI variant.
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 SAI40X300 FAQ
At an operating pressure of 0.7MPa, the SAI40X300 generates 879N of push force and 528N of pull force. At 0.5MPa, it provides 628N of push force.
Yes, the SAI40X300 is built to the ISO 15552 standard, meaning its mounting dimensions and profile barrel are directly interchangeable with other ISO 15552 cylinders of the same bore size.
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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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Most inquiries answered within 7-8 hours.
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