Airtac SDAD Double Rod Slim Cylinder SDAD40X50S
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X50S 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)
About the Airtac SDAD Double Rod Slim Cylinder SDAD40X50S
The AirTAC SDAD40X50S is a compact double-acting cylinder featuring a 16 mm piston rod exiting both ends of its riveted body. Because the rod occupies each chamber equally, the annular area matches on extend and retract, yielding an identical push and pull force of 527.8 N at 0.5 MPa. This symmetric output is ideal for driving loads that must move with the same energy in both directions.
The through-rod geometry inherently resists twisting and allows you to mount a work tool on one end while fitting a dog or switch on the opposite side. Equipped with a built-in magnet, this unit supports AirTAC reed or electronic position sensing. End-of-stroke deceleration is handled by a fixed NBR bumper, keeping the overall length short for tight machinery envelopes.
Airtac SDAD Double Rod Slim Cylinder SDAD40X50S Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X50S |
|---|---|
| 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 SDAD40X50S
| 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 SDAD40X50S Is Used
Symmetric Transfer Chuck
Drives a gripper chuck that clamps and releases with equal 527.8 N force, ensuring consistent part handling without rotational deflection.
Dual-End Pin Insertion
Mounts the pressing tool on one rod tip and a position dog on the opposite end, using the anti-twist through-rod for precise alignment.
Carton Flap Folder
Folds packaging flaps symmetrically in tight machinery spaces, relying on the short riveted body to minimize axial footprint.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X50S the Right Cylinder?
When sizing this 40 mm bore, compare its 527.8 N output at 0.5 MPa against adjacent models. Stepping down to the SDAD32 provides 345.6 N, whereas moving up to the SDAD50 yields 824.7 N. Based on the 527.8 N figure, a safe working load is roughly 317 N, which translates to a vertical lift capacity of about 26.9 kg with a 2:1 safety margin.
This configuration includes the S option for magnetic sensing and uses female M8x1.25 rod-end threads on both ends, supplied by a PT1/8 port. Remember that a standard cylinder drifts when air is removed or the valve centers; the fixed bumper only decelerates the stroke end and will not hold the load. For suspended loads, specify an external rod lock or pilot-operated check valve.
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 SDAD40X50S FAQ
Because the double rod creates equal annular areas, force is identical in both directions: 527.8 N at 0.5 MPa, 738.9 N at 0.7 MPa, and a theoretical maximum of 108 kgf at 1.0 MPa.
Yes, the through-rod design resists twisting and allows you to drive a tool on one end while mounting a dog for a reed or electronic switch on the other, maximizing layout flexibility.
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