Airtac SAID40 Double Rod Cylinder SAID40AX170
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX170 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 170mm 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
- Stroke170 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX170
The AirTAC SAID40X170 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 170 mm stroke. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding an equal 528 N of force in each direction at 0.5 MPa. The barrel is extruded aluminum with sensor grooves on both sides for flexible switch mounting.
This configuration uses SUS420J2 stainless steel for both rods (material code A) and PT tapered port threads. The twin-rod design allows mounting a primary workpiece on one end and a cam, position flag, or secondary mechanism on the rear rod, providing dual-side guidance and superior anti-rotation resistance compared to a single-rod SAI.
Airtac SAID40 Double Rod Cylinder SAID40AX170 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX170 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 170 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 SAID40AX170
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×170 | 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 SAID40AX170 Is Used
Symmetric Force Transfer
Drives a shuttle mechanism where the 528 N extend and retract forces must be perfectly equal, ensuring consistent momentum in both travel directions.
Anti-Rotation Slides
Guides a heavy vertical slide using twin rods exiting both covers, preventing torsional twist that a single piston rod cannot resist.
Through-Rod Sensing
Actuates a clamping jaw on the front stroke while using the rear rod protrusion to trigger a mechanical limit flag for end-of-travel confirmation.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX170 the Right Cylinder?
Select this 40 mm bore when an application requires symmetric force and speed both ways, delivering 528 N at 0.5 MPa. If your mechanism needs less force, step down to the 32 mm bore (345 N both ways); if you need more push or pull, step up to the 50 mm bore (825 N both ways). The double rod is specifically chosen over a single-rod SAI when twin-station actuation or rear-rod sensing is required.
Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles found on single-rod variants. Note that this cylinder does not hold its load if air pressure is lost; use a SAIL lock, BSAID clamp-lock, or external rod lock for position holding. It is dimensionally interchangeable per ISO 15552.
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 SAID40AX170 FAQ
The SAID40X170 double-rod cylinder provides equal force in both directions because the rod occupies both sides of the piston. It delivers 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa on both extend and retract strokes.
Yes, the SAID40X170 is a profile cylinder dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. It supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, but omits FB, CA, CB, and CR styles.
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