
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD25X80B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø25mm bore, 80mm stroke). The through-rod resists twisting and lets you drive a tool on one end while a switch or dog reads position on the other — with identical force in both directions.
The AirTAC SDAD25X80B is a double-acting compact cylinder featuring a through-rod that exits both ends of the riveted body. Because the rod occupies both chambers, the annular area is identical in each direction, giving exactly 206.2 N of push and pull force at 0.5 MPa. This symmetric output is ideal for balancing loads without tweaking pressure regulators.
This specific SKU includes male M8x1.25 threads on both rod ends for direct mechanical mounting. It carries an 80 mm stroke and uses an M5x0.8 port. End-of-stroke deceleration is handled by fixed NBR bumpers rather than adjustable air cushions, keeping the overall length short for tight machinery layouts.
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD25X80B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 mm |
| Acting type | Double acting, rod both ends |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 male (B) |
| 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 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 120 mm |
Because a rod occupies both cylinder chambers, the effective area — and therefore the force — is identical in both directions. Specifications follow the official AirTAC SDAD datasheet.
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
Force uses the annular (rod-side) area on both strokes, so extend and retract match. Actual usable force is lower than theoretical due to friction. Size with a safety margin.
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 25 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch sensing (omit = none). |
| B | Male-thread piston rods (omit = female thread). |
Thread: PT standard. Related SDA-family variants: SDA (single rod), SSA/STA (single acting), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Drives opposing gripper fingers with equal 206.2 N force in both directions, ensuring centered clamping on delicate machined parts.
Uses the male M8x1.25 rod ends to push a transfer carriage on a conveyor, maintaining stable motion without rotational deflection.
Folds carton flaps symmetrically from both sides, taking advantage of the compact riveted body to fit within narrow packaging frames.
When sizing this 25 mm bore model, compare its 206.2 N output at 0.5 MPa against adjacent bores. Dropping down to SDAD20 yields 131.9 N, while stepping up to SDAD32 provides 345.6 N. A practical safe working load is roughly 124 N, allowing a vertical lift of about 10.5 kg with a 2:1 safety margin. The through-rod geometry prevents twisting during extension, letting you mount a tool on one end and a dog on the opposite side.
Remember that this unit lacks the -S magnet, so position sensing is not possible without changing variants. It also features male M8x1.25 rod threads at both extremities. A standard double-acting cylinder drifts when air pressure is lost or the valve centers, as the fixed bumper only decelerates near stroke end; utilize an external rod lock or pilot-operated check valve for secure load holding.
Quick checklist
The push and pull forces are equal because the rod exits both ends. It generates 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa in both directions. The theoretical maximum is 42 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
Yes, the through-rod design resists twisting and allows dual-end mounting, such as driving a tool on one side while tracking position on the other. However, this specific SKU lacks the -S magnet, so you must select the -S variant to use AirTAC reed or electronic switches.
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