
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD12X25 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø12mm bore, 25mm 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 SDAD12X25 is a compact double-acting cylinder featuring a 12mm bore and 25mm stroke, with twin 6mm rods extending from both ends. This geometry yields identical extend and retract forces of 42.4 N at 0.5 MPa, ensuring perfectly symmetric motion for delicate mechanisms. The through-rod design inherently resists twisting, providing stable guidance without external linear bearings.
Its short riveted body minimizes axial footprint, fitting easily into tight machinery where larger profile cylinders cannot. End-of-stroke deceleration is handled by fixed NBR bumpers rather than adjustable air cushions. Note this specific SKU lacks a piston magnet, so position sensing is not supported without upgrading to the -S variant.
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD12X25 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø12 mm |
| Stroke | 25 mm |
| Acting type | Double acting, rod both ends |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 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 50 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 | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 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. |
|---|---|
| 12 | Bore size in mm. |
| ×25 | 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).
Provides equal push and pull force to small gripper jaws, ensuring delicate samples are clamped symmetrically without rotational drift.
The compact 12mm body saves axial space in tight printing assemblies while the twin rods prevent yaw during rapid micro-adjustments.
Drives a low-profile sorting flap on one rod end while the opposite end clears the frame, ideal for moving 2.2 kg packages vertically.
When sizing this unit, consider the adjacent bore: the SDAD16 provides 86.4 N at 0.5 MPa if you need greater thrust, while this 12mm bore offers a safe working load of roughly 25 N (about 60% of its 42.4 N capacity). For vertical lifts, expect to manage approximately 2.2 kg safely with a 2:1 margin. The dual-end rod allows driving a tool on one side while mounting a mechanical stop on the opposite end.
This configuration uses an M5x0.8 port and female M3x0.5 rod-end threads. Remember that a standard cylinder drifts if air pressure is lost or the valve centers, as the fixed bumper only decelerates near stroke end and cannot hold a load; employ an external rod lock or pilot-operated check valve for true position holding.
Quick checklist
Because the double-rod design creates equal annular areas, the force is identical in both directions: 42.4 N at 0.5 MPa, 59.4 N at 0.7 MPa, and a theoretical maximum of 9 kgf at 1.0 MPa.
Yes, the through-rod resists twisting and allows dual-end mounting. However, this specific SKU lacks a piston magnet, so you cannot use magnetic switches unless you select the -S option for reed or electronic sensing.
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