Airtac SAID40 Double Rod Cylinder SAID40AX290S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX290S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 290mm 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
- Stroke290 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX290S
The AirTAC SAID40X290-S is a double-acting, double-rod ISO 15552 profile cylinder. A single piston drives a rod out of both end covers, yielding equal effective annulus area on extend and retract. This provides a balanced 528 N of force both ways at 0.5 MPa, ensuring identical push and pull dynamics.
Configured with a SUS420J2 stainless steel rod (code A) and a magnet for position sensing, it supports AirTAC CMSE reed and DMSE solid-state switches via dual side sensor grooves. The extruded aluminum barrel design is dimensionally interchangeable per ISO 15552, and PT tapered ports ensure tight pneumatic sealing.
Airtac SAID40 Double Rod Cylinder SAID40AX290S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX290S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 290 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 SAID40AX290S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×290 | 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 SAID40AX290S Is Used
Symmetric Force Transfer
Ideal for transferring parts between two parallel workstations, utilizing the equal 528 N push and pull force to maintain consistent cycle times in both directions.
Anti-Rotation Slides
The twin-rod design provides superior anti-rotation resistance compared to single-rod cylinders, keeping precision slides and guided loads perfectly aligned without twisting.
Through-Rod Sensing
Mount the primary workpiece on the front rod and a DMSE sensor flag on the rear protruding rod, allowing dual-side actuation and rear-end position verification.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX290S the Right Cylinder?
Select this 40 mm bore when an application requires symmetric force and velocity both directions, offering 528 N at 0.5 MPa. If your mechanism needs less force, step down to the 32 mm bore (345 N); if moving heavier jigs, step up to the 50 mm bore (821 N). Choose this double-rod configuration over a single-rod SAI when you need to mount a secondary tool, cam, or position flag on the rear rod extension, or when twin-side guidance prevents load rotation.
This model includes the -S magnet for CMSE/DMSE sensors and uses PT port threads. Mounting accessories available include Basic, FA, LB, TC, FTC, TCM1, and TCM2 (FB/CA/CB/CR are omitted). Because the 290 mm stroke creates a long unsupported load, add an external guide to prevent rod-bearing bending and side-load wear. Note that the adjustable air cushions only decelerate the piston near stroke end; they do not hold a load. If air pressure drops, the piston drifts—use a SAIL lock cylinder or external rod lock for position holding.
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 SAID40AX290S FAQ
Because the rod occupies both sides of the piston, the effective area is identical in both directions. It delivers 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa for both extension and retraction.
Yes. As an ISO 15552 profile cylinder, it is dimensionally interchangeable with other standard ISO 15552 double-rod cylinders of the same bore and stroke. It uses a PT G1/4 port and supports standard AirTAC mounting accessories.
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