Airtac SDAD Double Rod Slim Cylinder SDAD40X50SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X50SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 50mm 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.
- BoreØ40 mm
- Stroke50 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAD Double Rod Slim Cylinder SDAD40X50SB
The AirTAC SDAD40X50SB is a double-acting compact cylinder featuring a 40 mm bore and a 50 mm stroke. Because the piston rod exits both ends of the riveted body, the annular area remains identical in each chamber. This geometry guarantees that push and pull forces are equal, delivering exactly 527.8 N at 0.5 MPa in both directions. The through-rod design inherently resists twisting, providing stable linear motion for demanding pick-and-place tasks.
This specific configuration includes a built-in piston magnet for position sensing alongside male M14x1.5 threaded rods on both ends. The short body profile minimizes axial mounting depth, fitting easily into tight machine frames. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD40X50SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X50SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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.
Model Code: Airtac SDAD Double Rod Slim Cylinder SDAD40X50SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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).
Where the Airtac SDAD Double Rod Slim Cylinder SDAD40X50SB Is Used
Symmetric Transfer Unit
Drives a gripper on one end and a dog on the opposite end simultaneously, utilizing the equal 527.8 N push and pull force to shuttle parts without rotational twist.
Balanced Lift Station
Raises and lowers a 26.9 kg platen vertically, relying on the through-rod geometry to maintain alignment and prevent binding during rapid 50 mm strokes.
Dual-End Forming Jig
Mounts a forming tool on one male M14x1.5 rod end while a reed switch tracks the opposite end, ensuring precise timing in a compact riveted body.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X50SB the Right Cylinder?
When sizing this unit, compare its 527.8 N output at 0.5 MPa against adjacent bores. Dropping down to the SDAD32 yields 345.6 N, while stepping up to the SDAD50 provides 824.7 N. Choose the 40 mm bore when your symmetric load requires approximately half a kilonewton of bidirectional force. The male M14x1.5 rod ends on both sides allow direct mounting of tools or fixtures, while the internal magnet enables feedback via reed or electronic switches.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve centers, as the fixed bumper only decelerates near the stroke end and acts as no brake. For load-holding without live pressure, integrate an external rod lock or a pilot-operated check valve. Confirm your setup requires a 50 mm stroke, PT1/8 ports, and the dual male rod configuration before finalizing the assembly.
Quick checklist
- ✓ Need equal force both directions?
- ✓ Anti-rotation / dual-end mounting?
- ✓ Space for a rod that exits both ends
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Leave clearance for the rod exiting both ends.
- check Avoid side load on either rod end.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAD Double Rod Slim Cylinder SDAD40X50SB FAQ
Because the rod occupies both chambers, push and pull forces are identical. It generates 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa in both directions. The theoretical maximum is 108 kgf at 1.0 MPa.
The through-rod resists twisting under offset loads and allows you to mount tooling on one end while attaching a sensor target on the other. The included magnet works with reed or electronic switches, and the male M14x1.5 threads simplify fixture attachment on both ends.
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