Airtac SDAD Double Rod Slim Cylinder SDAD50X20
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X20 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 20mm 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.
- BoreØ50 mm
- Stroke20 mm
- Port sizePT1/4
- Acting typeDouble acting, double rod
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDAD Double Rod Slim Cylinder SDAD50X20
The AirTAC SDAD50X20 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 in each direction, delivering an equal push and pull force of 824.7 N at 0.5 MPa. This symmetry is ideal for driving loads without inducing directional bias.
This specific 50 mm bore variant uses a 20 mm piston rod and a PT1/4 port. It provides a short axial mounting depth, saving space where a larger profile cylinder would not fit. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Note this SKU lacks a piston magnet, so position sensing is not supported here.
Airtac SDAD Double Rod Slim Cylinder SDAD50X20 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X20 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 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.
Theoretical Output Force (Ø50mm)
| 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.
Model Code: Airtac SDAD Double Rod Slim Cylinder SDAD50X20
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 SDAD50X20 Is Used
Equal-Force Gauging
Uses the 824.7 N symmetric push and pull to press a measurement probe against a part, ensuring consistent contact pressure without directional force deviation.
Dual-End Transfer
Mounts a gripper on the front rod and a dog on the rear rod, allowing the through-rod to drive a tool while triggering an external mechanical switch.
Vertical Lift Stop
Raises a 42 kg payload using the 20 mm stroke, relying on the fixed NBR bumper to absorb the shock at the precise end of the upward travel.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X20 the Right Cylinder?
When sizing this unit, consider the adjacent bores: stepping down to the SDAD40 yields 527.8 N at 0.5 MPa, while stepping up to the SDAD63 provides 1401.5 N at 0.5 MPa. The 50 mm bore offers a computed safe working load of roughly 495 N (about 60 percent of the 0.5 MPa figure) and can vertically lift around 42 kg with a 2:1 safety margin.
The through-rod geometry resists twisting and permits mounting a tool on one end with a dog on the opposite side. Remember that a plain cylinder drifts when air is lost or the valve centers, as the fixed bumper only decelerates near stroke end and does not lock the load; use an external rod lock or pilot-operated check valve for holding. This configuration confirms a 50 mm bore, 20 mm stroke, PT1/4 port, female rod-end threads, and no magnet.
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 SDAD50X20 FAQ
Because it is a double-rod cylinder, the push and pull forces are equal. It outputs 824.7 N at 0.5 MPa, 1154.5 N at 0.7 MPa, and has a theoretical maximum of 168 kgf at 1.0 MPa in both directions.
No, this specific SKU does not include a piston magnet. You would need the -S variant to enable sensing with reed or electronic switches. The through-rod design still allows you to mount a mechanical dog on the opposite end for external triggering.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SDAD Cylinders
Request a Quote for Airtac SDAD Double Rod Slim Cylinder SDAD50X20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.