Airtac SAID40 Double Rod Cylinder SAID40AX350S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX350S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAID40 Double Rod Cylinder SAID40AX350S
The AirTAC SAID40X350-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 350 mm stroke. Because a rod exits both end covers, the annular piston area is identical on extend and retract, yielding an equal 528 N of force in both directions at 0.5 MPa. The integrated magnet works seamlessly with CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves.
Equipped with SUS420J2 stainless steel rods (material code A) and PT tapered port threads, this through-rod design allows you to mount a workpiece on the front rod while using the rear rod for anti-rotation guidance or to drive a secondary mechanism. It utilizes adjustable air cushions at both ends to decelerate the piston, though it will not hold a load if air pressure is lost.
Airtac SAID40 Double Rod Cylinder SAID40AX350S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX350S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 SAID40AX350S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 SAID40AX350S Is Used
Symmetric Transfer Units
Drives a workpiece on the front rod while the rear rod simultaneously pushes a secondary assembly, ensuring perfectly balanced 528 N force both ways at 0.5 MPa.
Anti-Rotation Slides
The twin-rod design naturally resists torsional twist, keeping guided loads stable over the 350 mm travel without relying solely on external rail bearings.
Dual-Station Sensing
The -S magnet pairs with CMSE and DMSE switches in the dual-side grooves to confirm stroke endpoints, while the rear rod can mount a physical cam for secondary validation.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX350S the Right Cylinder?
Choose this 40 mm bore when an application demands symmetric push and pull forces alongside dual-side actuation. If your mechanism requires less force, stepping down to a 32 mm bore provides 345 N both ways at 0.5 MPa, whereas a 50 mm bore offers 825 N if you need to move heavier loads. The twin-rod architecture is specifically selected over a single-rod SAI when a rear cam, position flag, or secondary tool must be synchronized with the primary stroke.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a drop-in replacement for other standard double-rod profile cylinders. It supports a mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 350 mm stroke is relatively long, the unsupported rod length increases side-load risks; always use an external guide to prevent rod-bearing bending. Remember that the air cushion only decelerates the piston near stroke end and does not lock the load—if position holding without live pressure is required, consider an SAIL or BSAID model.
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 SAID40AX350S FAQ
It delivers an equal force in both directions because the rod area is subtracted from both sides of the piston. It outputs 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, it is dimensionally interchangeable per ISO 15552 standards as a profile cylinder. You can use it as a drop-in replacement for other ISO 15552 double-rod cylinders without altering your existing mounting footprint.
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