Airtac SAID40 Double Rod Cylinder SAID40AX210S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX210S 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 SAID40AX210S
The AirTAC SAID40X210-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 210 mm stroke. A single piston drives a rod out of both end covers, yielding perfectly symmetrical thrust: it generates 528 N of force in both extend and retract directions at 0.5 MPa. Because the annulus area is identical on both sides, your push and pull speeds remain perfectly matched.
This variant features a built-in magnet (-S) for position sensing with AirTAC CMSE reed or DMSE solid-state switches, which seat neatly into the dual sensor grooves machined into the extruded aluminum barrel. The rod is constructed from SUS420J2 stainless steel (code A) for superior corrosion resistance, and it uses a PT tapered port thread. Keep in mind that the through-rod design requires extra rear clearance to accommodate the protruding secondary rod end.
Airtac SAID40 Double Rod Cylinder SAID40AX210S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX210S |
|---|---|
| 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 SAID40AX210S
| 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 SAID40AX210S Is Used
Symmetric Force Transfer
Drives a transfer carriage where the equal 528 N push and pull forces at 0.5 MPa prevent speed variations between forward and return strokes.
Anti-Rotation Slides
The twin through-rods keep the guided load perfectly aligned and prevent rotational twist during vertical lifting operations.
Dual-Station Actuation
Mount the primary workpiece on the front rod and a secondary cam or DMSE sensor flag on the rear rod to trigger downstream mechanisms simultaneously.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX210S the Right Cylinder?
Choose this 40 mm double-rod cylinder when an application demands equal force and velocity both ways, superior anti-rotation guidance, or the ability to mount a secondary cam and sensor flag on the rear rod extension. If you need higher thrust, stepping up to the 50 mm bore yields 825 N both ways at 0.5 MPa; dropping down to the 32 mm bore provides 345 N.
For a 210 mm stroke, which exceeds the 200 mm standard increment, this is a made-to-order non-standard length. Because the stroke is 300 mm or above, note that long unsupported strokes increase rod-bearing bending and side-load stress; always use an external guide to support the load. This model is dimensionally interchangeable per ISO 15552 and uses the reduced SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, TCM2. Remember that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold a load. If your system loses air pressure, the piston will drift. For true position holding without live pressure, use an external rod lock, a pilot-operated check valve, or switch to a BSAID double-rod clamp-lock 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 SAID40AX210S FAQ
Because a rod occupies both sides of the piston, the effective annulus area is identical in both directions. It provides 528 N of force at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa for both extend and retract strokes.
Yes, it is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 double-rod cylinders. It uses a PT G1/4 port and supports the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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