
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X30S is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 30mm 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 SDAD50X30S is a compact double-acting cylinder featuring a through-rod that exits both ends of the riveted body. Because the piston rod occupies each chamber equally, the annular area remains constant, delivering identical push and pull thrust of 824.7 N at 0.5 MPa. This symmetric output is ideal for balanced actuation tasks.
The 50 mm bore uses a 20 mm rod and a PT1/4 port, while the included -S magnet enables position detection via reed or electronic switches. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion. The short body depth saves axial mounting space, and the dual-end geometry naturally resists twisting during operation.
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X30S |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 30 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 | 825 N |
| 0.7 MPa | 1155 N |
| Max (@1.0 MPa) | 168 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. |
|---|---|
| 50 | Bore size in mm. |
| ×30 | 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 a pick-and-place head with equal 824.7 N force extending and retracting, ensuring smooth part handoff without momentum shifts.
Uses the dual-end through-rod to resist torsional stress when pushing a heavy 42 kg vertical load along a linear rail.
Mounts a forming tool on the front rod and a position dog on the rear rod, allowing a solid-state switch to trigger the seal cycle precisely.
When sizing this unit, compare its 824.7 N output at 0.5 MPa against adjacent bores: the SDAD40 yields 527.8 N, and the SDAD63 provides 1401.5 N. For a safe working load, expect around 495 N, which allows a vertical lift of roughly 42 kg with a 2:1 safety margin.
The through-rod design prevents rotation and permits mounting a tool on one end with a dog on the opposite end. Remember that a standard cylinder drifts when air is lost or the valve centers; use an external rod lock or pilot-operated check valve for load holding. This configuration includes the female M10x1.5 rod thread and the built-in magnet.
Quick checklist
The thrust is identical in both directions due to the double-rod design: 824.7 N at 0.5 MPa, 1154.5 N at 0.7 MPa, and a maximum theoretical output of 168 kgf at 1.0 MPa.
The through-rod resists twisting and lets you mount tooling on both ends. The built-in -S magnet works with AirTAC reed or electronic switches for precise end-of-stroke detection.
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