Airtac SAID40 Double Rod Cylinder SAID40X210S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X210S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 210mm 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
- Stroke210 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X210S
The AirTAC SAID40X210-S is a double-acting, double-rod profile cylinder operating on an ISO 15552 mounting interface. Because a carbon steel rod exits both end covers, the annulus area is identical on each side, yielding exactly 528N of force in both extend and retract directions at 0.5MPa. This symmetric output is ideal for mechanisms requiring identical push and pull dynamics.
Equipped with a magnet (-S), this unit supports AirTAC CMSE reed and DMSE electronic solid-state sensors housed within the dual-side extruded barrel grooves. The rear rod extension can drive a secondary mechanism or mount a position flag, while adjustable air cushions at both ends decelerate the piston smoothly over the 210mm travel.
Airtac SAID40 Double Rod Cylinder SAID40X210S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X210S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 210 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 SAID40X210S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×210 | 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 SAID40X210S Is Used
Symmetric Transfer
Drives a transfer carriage with identical 528N push and pull force, ensuring consistent acceleration and deceleration of the workpiece in both travel directions.
Dual-Station Actuation
Uses the front rod to clamp a part while the rear rod simultaneously trips a DMSE electronic sensor flag, sequencing two machine operations from one cylinder.
Anti-Rotation Slide
Guides a vertical lifting slide using both rod ends to resist torsional twisting, maintaining precise vertical alignment without requiring external linear bearings.
Is the Airtac SAID40 Double Rod Cylinder SAID40X210S the Right Cylinder?
Select this 40mm bore when an application demands equal 528N thrust both ways alongside anti-rotation stability or rear-rod cam actuation. If your project requires higher symmetric force, stepping up to the 50mm bore provides 825N. Conversely, dropping to the 32mm bore yields 345N. Unlike a single-rod SAI, this twin-rod design prevents load twisting during transit.
This cylinder uses PT tapered port threads (G1/4) and accepts the reduced SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, TCM2. It is dimensionally interchangeable per ISO 15552. Note that the standard air cushion only decelerates the piston; it does not hold the load. If pneumatic pressure is lost, use an external rod lock or a BSAID clamp-lock cylinder to prevent drifting. Because the stroke is 210mm, ensure external guidance for heavy loads to avoid rod-bearing bending.
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 SAID40X210S FAQ
The double-rod design provides equal force in both directions. It delivers 528N at 0.5MPa, 739N at 0.7MPa, and 950N at 0.9MPa for both extend and retract strokes.
Yes, it is dimensionally interchangeable per ISO 15552. It uses the same mounting footprint and PT G1/4 ports, but note it uses the SAID mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets.
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