Airtac SDAD Double Rod Slim Cylinder SDAD40X50
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X50 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 SDAD40X50
The AirTAC SDAD40X50 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 on extend and retract, yielding exactly 527.8 N of force at 0.5 MPa in each direction. This symmetry is ideal for driving loads that require consistent push and pull dynamics.
A 16 mm piston rod resists mechanical twisting during operation, while the short body design saves valuable axial mounting depth. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Note this specific SKU lacks a piston magnet, so it cannot directly host magnetic switches without upgrading to the -S variant.
Airtac SDAD Double Rod Slim Cylinder SDAD40X50 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X50 |
|---|---|
| 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 SDAD40X50
| 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 SDAD40X50 Is Used
Guided Strip Peeling
Equal push and pull force of 527.8 N ensures consistent tension when peeling adhesive liners from continuous web strips without rotational deflection.
Dual-Side Transfer Jig
Mount a gripper on the front rod and a tracking flag on the rear to synchronize part handoffs between opposing conveyor belts in tight axial spaces.
Balanced Lift Station
The through-rod geometry prevents twisting while lifting 26.9 kg vertical loads, maintaining precise vertical alignment during upward and downward transit.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X50 the Right Cylinder?
When sizing this 40 mm bore unit, consider the neighboring standard options. Stepping down to the SDAD32 provides 345.6 N at 0.5 MPa, while stepping up to the SDAD50 yields 824.7 N at 0.5 MPa. This model provides a safe working load of roughly 317 N, operating at about 60 percent of its 0.5 MPa capacity, and can vertically lift approximately 26.9 kg with a 2:1 safety margin.
The dual-end geometry allows you to mount a work tool on one side and a mechanical dog on the opposite end. Because this is a plain double-acting actuator, it will drift and cannot hold a load if air pressure drops or the valve centers; utilize an external pilot-operated check valve for load holding. This configuration features a 50 mm stroke, PT1/8 porting, and female M8x1.25 rod-end threads on both sides.
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 SDAD40X50 FAQ
The double-rod design provides equal force in both directions: 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa. The theoretical maximum is 108 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa.
No, this specific SKU does not include a piston magnet, so it cannot host reed or electronic switches. You must select the SDAD40X50S variant to enable magnetic position sensing along the body grooves.
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