Airtac SAID40 Double Rod Cylinder SAID40BX225
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX225 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 225mm 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
- Stroke225 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40BX225
The AirTAC SAID40X225 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 225mm stroke. Because the piston rod extends from both end covers, the annulus area is identical on both sides, yielding exactly 528 N of force in both extend and retract directions at 0.5 MPa. This symmetric output is ideal for mechanisms requiring consistent push and pull dynamics.
This specific configuration utilizes a SUS304 stainless steel rod (option B) for superior corrosion resistance in humid or mildly chemical environments. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches. Note that the through-rod design requires additional rear clearance compared to a single-rod SAI cylinder to accommodate the protruding shaft.
Airtac SAID40 Double Rod Cylinder SAID40BX225 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX225 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 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 SAID40 Double Rod Cylinder SAID40BX225
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 SAID40 Double Rod Cylinder SAID40BX225 Is Used
Symmetric Force Transfer
Drives a transfer shuttle where the equal 528 N extend and retract forces at 0.5 MPa ensure consistent acceleration and deceleration without requiring pressure adjustments between strokes.
Anti-Rotation Guidance
The dual rods exiting both end covers prevent piston rotation, making it ideal for lifting a guided vertical platen that cannot tolerate angular drift during the 225mm travel.
Rear-Rod Cam Actuation
Mounts the primary workpiece on the front rod while utilizing the rear SUS304 rod extension to physically trip a mechanical limit valve or carry a DMSE sensor flag.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX225 the Right Cylinder?
Select this 40mm bore double-rod actuator when your application demands equal push and pull forces, such as 528 N at 0.5 MPa, or 739 N at 0.7 MPa. If your mechanism requires less force, stepping down to the 32mm bore provides 345 N both ways, while moving up to the 50mm bore offers 825 N. The twin-rod architecture inherently provides better anti-rotation guidance and allows driving a load on one end while mounting a position flag or cam on the rear rod.
For this 225mm stroke, the 16mm rod and M12x1.25 thread provide a robust interface, but an external guide is recommended to prevent rod-bearing bending under heavy lateral loads. This cylinder uses PT tapered port threads and accepts the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Remember that a standard SAID does not hold position pneumatically; if air pressure drops, the piston will drift, so consider an external pilot-operated check valve for load holding. It serves as a drop-in replacement for any ISO 15552 double-rod cylinder.
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 SAID40 Double Rod Cylinder SAID40BX225 FAQ
Because it is a double-rod cylinder, the effective piston area is identical on both sides. It provides 528 N of force in both directions at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, the SAID40X225 is dimensionally interchangeable per ISO 15552. You can use it as a drop-in replacement for other ISO 15552 profile double-rod cylinders, provided you allow for the rear rod protrusion and use the PT G1/4 port.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAID40 Double Rod Cylinder SAID40BX225
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.