Airtac SAID40 Double Rod Cylinder SAID40AX200
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX200 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 SAID40AX200
The AirTAC SAID40X200 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 16mm rod exiting both end covers. Because the piston area is equal on both sides, it generates a perfectly symmetrical 528 N of force in both extend and retract directions at 0.5 MPa. This through-rod architecture provides superior anti-rotation guidance for external loads compared to a single-rod SAI.
This specific configuration utilizes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes dual sensor grooves, allowing you to mount position switches on either side, though this unit is specified without a magnet.
Airtac SAID40 Double Rod Cylinder SAID40AX200 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX200 |
|---|---|
| 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 SAID40AX200
| 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 SAID40AX200 Is Used
Symmetric Force Transfer
Drives loads requiring identical push and pull dynamics, utilizing the equal 528 N annulus area to ensure consistent velocity and power in both travel directions.
Anti-Rotation Slides
The twin-rod geometry prevents piston twist during extension, providing precise linear guidance for sliding mechanisms without needing external guide rails.
Rear-End Sensing
Uses the protruding rear rod end to mount a physical cam or limit flag, triggering external proximity sensors independently from the primary work tool.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX200 the Right Cylinder?
Select this 40mm bore when an application demands equal push and pull forces, such as 528 N at 0.5 MPa, alongside twin-side load stabilization. If your mechanism requires less force, stepping down to the 32mm bore yields 345 N both ways, while moving up to the 50mm bore provides 825 N. A double-rod design is chosen over a single-rod SAI when you need to drive a cam or position flag from the rear rod end, or when strict anti-rotation control is necessary.
As a standard ISO 15552 profile cylinder, it serves as a drop-in replacement for other ISO 15552 double-rod cylinders, utilizing the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the variable air cushions at both ends only decelerate the piston near stroke end; they do not hold the load. If position holding without live air pressure is required, consider a SAIL or BSAID variant. For this 200mm stroke, the 16mm rod handles moderate side loads, but an external guide is recommended for heavy off-center masses.
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 SAID40AX200 FAQ
Because it is a double-rod cylinder, the effective piston area is identical on both sides. It outputs 528 N in both the extend and retract directions at 0.5 MPa, and 739 N at 0.7 MPa.
Yes, the SAID40X200 is dimensionally interchangeable per ISO 15552 standards. It shares the exact same mounting interface and footprint as other ISO 15552 double-rod profile cylinders, allowing for a direct drop-in replacement.
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