Airtac SAID40 Double Rod Cylinder SAID40X450S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X450S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X450S
The AirTAC SAID40X450-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a built-in magnet for position sensing. Because a rod exits both ends, the effective piston area is identical in both directions, yielding exactly 528 N of force on both extend and retract at 0.5 MPa. The standard carbon steel rod provides durable performance, while the extruded aluminum barrel includes dual sensor grooves for flexible switch mounting.
Equipped with a -S magnet, this model supports AirTAC CMSE reed and DMSE electronic sensors to track both stroke ends. The through-rod design allows you to mount a primary workpiece on the front and a cam or limit flag on the rear, simultaneously improving anti-rotation guidance for demanding handling tasks.
Airtac SAID40 Double Rod Cylinder SAID40X450S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X450S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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 SAID40X450S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 SAID40X450S Is Used
Symmetric Transfer
Drives a dual-sided pick-and-place mechanism where equal push and pull forces ensure consistent acceleration of fragile components without shifting dynamics.
Anti-Rotation Slides
Powers a vertical lifting slide using the twin-rod geometry to resist torsional twist and maintain precise vertical alignment under offset loads.
Rear-Flag Sensing
Actuates a primary clamping tool on the front rod while using the rear protrusion to trigger a physical limit flag or secondary DMSE electronic sensor.
Is the Airtac SAID40 Double Rod Cylinder SAID40X450S the Right Cylinder?
Select this 40mm bore when an application requires symmetric force and speed both ways, delivering 528 N at 0.5 MPa. If your process needs less force, step down to the 32mm bore (345 N both directions); for heavier loads, step up to the 50mm bore (825 N). Choose the SAID double-rod over a single-rod SAI when you need twin-side actuation, rear-rod sensing, or superior load stability against rotation.
This 450mm stroke configuration uses PT tapered ports and requires the SAID mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR styles found on single-rod variants. Because the stroke is 450mm, the extended rod length increases side-load leverage on the front bearing; use an external guide rail to prevent rod bending and premature seal wear. Note that the adjustable air cushions only decelerate the piston at stroke ends and do not hold the load if air pressure is lost—add a SAIL lock or external pilot-operated check valve for fail-safe positioning.
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 SAID40X450S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is equal in both directions. It provides 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa for both extend and retract strokes.
Yes, the SAID40X450-S is dimensionally interchangeable per ISO 15552 mounting dimensions and can serve as a drop-in replacement for other ISO 15552 double-rod profile cylinders. Ensure your mounting hardware matches the SAID accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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