
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX165 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 165mm 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.
The AirTAC SAID40X165 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 165 mm stroke. Because a rod extends from both end covers, the annulus area is identical on both sides, yielding exactly 528 N of force in both extend and retract directions at 0.5 MPa. This symmetric thrust makes it ideal for mechanisms requiring equal push and pull power.
This specific configuration utilizes SUS420J2 stainless steel rods (material code A) for superior corrosion resistance and durability. The barrel is an extruded aluminum profile with sensor grooves on both sides. It uses PT tapered port threads (G1/4) and includes adjustable air cushions at both ends to decelerate the piston smoothly near stroke end.
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX165 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 165 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.
| 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.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×165 | 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.
Drives transfer shuttles where the 528 N push and pull forces must be perfectly matched to move workpieces equally in both directions without momentum shifts.
The twin rods exiting both ends keep the load guided against rotation better than a single rod, ensuring precise linear movement for sliding mechanisms.
The protruding rear rod provides a convenient mounting point for a position flag or cam to trigger external sensors, keeping the primary work area clear of obstructions.
Select this 40 mm bore double-rod cylinder when your application requires equal force both ways (528 N at 0.5 MPa) and anti-rotation guidance. If you need higher thrust, stepping up to the 50 mm bore provides 825 N, or step down to the 32 mm bore for 345 N. Choose a double-rod SAID over a single-rod SAI when you need to mount a secondary tool, cam, or position flag on the rear rod extension.
This model is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that a plain SAID does not hold its position if air pressure is lost; for load-holding requirements, consider the SAIL or BSAID series. Since the stroke is 165 mm, side-load risks are moderate, but long unsupported strokes should still use an external guide.
Quick checklist
Because it is a double-rod cylinder, the effective piston area is the same on both sides. It delivers an equal 528 N of force in both extend and retract directions at 0.5 MPa (739 N at 0.7 MPa).
Yes, the SAID40X165 is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 double-rod cylinders. It uses a G1/4 PT port and supports mounting sets like FA, LB, and TC.
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