
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X170S 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 featuring a 40mm bore and 170mm stroke. Because a rod extends from both end covers, the annulus area is identical on both sides, yielding an equal extend and retract force of 528 N at 0.5 MPa. This symmetric output is ideal for mechanisms requiring consistent push and pull dynamics.
Equipped with a magnet (-S), it supports AirTAC CMSE reed and DMSE solid-state sensors housed within the dual-side barrel grooves. The rear rod extension allows engineers to mount a secondary cam, position flag, or independent mechanism while maintaining superior anti-rotation guidance compared to a single-rod SAI.
| Model | Airtac SAID40 Double Rod Cylinder SAID40X170S |
|---|---|
| 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.
Drives a workpiece on the front rod while the rear rod simultaneously pushes a secondary assembly, ensuring perfectly balanced force and speed in both directions.
Utilizes the twin-rod structure to guide loads and prevent twisting without needing external guide rails, ideal for precision lifting and pressing.
Uses the integrated -S magnet with CMSE or DMSE sensors on both barrel grooves to track exact piston position for dual-station actuation.
Choose this 40mm bore when an application demands equal bidirectional power and twin-side guidance. If your mechanism requires less force, stepping down to the 32mm bore yields 345 N both ways at 0.5 MPa; stepping up to the 50mm bore provides 825 N. The 16mm carbon steel rod and M12x1.25 thread offer robust side-load capacity, but for this 170mm stroke, ensure the rear rod has adequate clearance.
This model uses a PT tapered G1/4 port and accepts the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB/CA/CB/CR. As a dimensionally interchangeable ISO 15552 component, it serves as a drop-in replacement for other standard double-rod profile cylinders. Note that the adjustable air cushions only decelerate the piston near stroke end; a plain SAID will drift if air pressure is lost, so use a SAIL or BSAID if position holding is required.
Quick checklist
It provides 528 N of force in both the extend and retract directions at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. Because it is a double-rod cylinder, the push and pull forces are identical.
Yes, it is dimensionally interchangeable per ISO 15552, but it only accepts the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). It omits the FB, CA, CB, and CR brackets found on single-rod SAI models.
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