Airtac SAID40 Double Rod Cylinder SAID40X200S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X200S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X200S
The AirTAC SAID40X200-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 200mm stroke. Because the twin rods occupy both sides of the piston, the annulus area is identical in each direction, yielding an equal extend and retract force of 528 N at 0.5 MPa. This through-rod design makes it dimensionally interchangeable with other ISO 15552 double-rod cylinders.
Equipped with a magnet (-S), this variant supports AirTAC CMSE reed and DMSE electronic sensors seated in the extruded aluminum barrel grooves on both sides. The carbon steel rods extend from both end covers, allowing you to mount a primary workpiece on one end and a cam, position flag, or secondary mechanism on the rear. Adjustable air cushions at both ends decelerate the piston near stroke limits, though they do not lock the load if air pressure is lost.
Airtac SAID40 Double Rod Cylinder SAID40X200S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X200S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 SAID40X200S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 SAID40X200S Is Used
Symmetric Force Transfer
Ideal for pressing or transferring parts where the 528N output must remain identical in both directions, preventing speed variations between extend and retract strokes.
Rear-Rod Position Sensing
The through-rod allows a CMSE or DMSE sensor flag to be mounted on the rear extension, enabling dual-side machine feedback without interfering with the primary work tool.
Anti-Rotation Slides
Twin rods exiting both end covers keep the load guided and resist torsional rotation, making it suitable for lifting or indexing heavy parallel frames.
Is the Airtac SAID40 Double Rod Cylinder SAID40X200S the Right Cylinder?
Choose this 40mm bore when an application demands equal push and pull forces alongside anti-rotation guidance. Stepping down to the SAID32 bore reduces the both-way output to 345 N at 0.5 MPa, while upgrading to the SAID50 raises it to 825 N. The double-rod architecture is selected over a single-rod SAI when a rear rod is needed for dual-side sensing or driving a second station.
Ensure you specify the PT G1/4 port, a 200mm stroke, and compatible mounting accessories from the SAID set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Since the 200mm stroke is under the 300mm side-load threshold, the 16mm rod and M12x1.25 thread provide ample standard bearing support without requiring an external guide.
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 SAID40X200S FAQ
Because it is a double-rod cylinder, the effective area is the same on both sides, providing an equal extend and retract force of 528 N at 0.5 MPa and 739 N at 0.7 MPa.
Yes, the SAID40X200-S is dimensionally interchangeable with other ISO 15552 double-rod cylinders, matching the standard 40mm bore footprint, G1/4 port, and M12x1.25 rod thread.
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