
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX170S 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.
The AirTAC SAID40X170-S is a double-acting, double-rod ISO 15552 profile cylinder. A single piston drives a rod out of both end covers, yielding identical extend and retract forces of 528 N at 0.5 MPa and 739 N at 0.7 MPa. The -S suffix indicates an integrated magnet for position sensing using AirTAC CMSE reed or DMSE solid-state switches.
This variant features a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, while the rear rod extension provides an excellent mounting point for a cam, position flag, or secondary mechanism without occupying the primary work area.
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX170S |
|---|---|
| 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.
| 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. |
| ×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.
Provides identical 528 N force in both directions, ideal for machinery requiring perfectly balanced push and pull dynamics without pressure compensation.
The twin-rod architecture prevents piston rotation, guiding precision slides and tooling carriers that cannot tolerate angular deflection.
Mount the primary workpiece on the front rod and a mechanical cam or limit flag on the rear rod to actuate secondary mechanisms or sensors.
Choose this 40mm bore double-rod cylinder when your application requires equal push and pull forces (528 N each way at 0.5 MPa) and inherent anti-rotation guidance. If you need less force, the 32mm bore offers 345 N; if you need more, the 50mm bore provides 825 N. The double-rod design is preferred over a single-rod SAI when you must mount a workpiece on one end and a sensor flag on the other, or when twin-side guidance is critical.
This SAID model uses PT tapered port threads (G1/4) and supports the reduced SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). It is dimensionally interchangeable per ISO 15552. Note that the adjustable air cushions only decelerate the piston near stroke end; they do not hold a load. If your system loses air pressure, the cylinder will drift—use an external rod lock or a BSAID clamp-lock cylinder for secure position holding.
Quick checklist
Because the rod area is subtracted on both sides, the push and pull forces are equal. It generates 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa in both directions.
Yes, the SAID40X170-S is dimensionally interchangeable per ISO 15552 and can serve as a drop-in replacement for other ISO 15552 double-rod cylinders, provided your mounting accessory uses the Basic, FA, LB, TC, FTC, TCM1, or TCM2 interface.
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