Airtac SDAD Double Rod Slim Cylinder SDAD20X50
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD20X50 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø20mm 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.
- BoreØ20 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM4×0.7 (F) / M6×1.0 (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 SDAD20X50
The AirTAC SDAD20X50 is a compact double-acting cylinder featuring a 20mm bore and 50mm stroke, with twin piston rods exiting the riveted body. Because a rod occupies both internal chambers, the annular area remains identical in either direction. This geometry yields exactly 131.9 N of push and pull force at 0.5 MPa, delivering perfectly symmetric performance for demanding motion tasks.
The through-rod architecture inherently resists twisting, allowing you to mount a work tool on one end while utilizing the opposite side for a secondary action. An 8mm rod diameter and M5x0.8 air port keep the footprint minimal. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion, keeping the overall length short for tight machinery layouts.
Airtac SDAD Double Rod Slim Cylinder SDAD20X50 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD20X50 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 mm |
| Acting type | Double acting, rod both ends |
| Port size | M5×0.8 |
| Rod end thread | M4×0.7 female / M6×1.0 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 90 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 (Ø20mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 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 SDAD20X50
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 20 | 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 SDAD20X50 Is Used
Gripper Jaw Actuation
The anti-rotation through-rod keeps the 131.9 N force perfectly aligned, preventing twist during tight-tolerance component gripping on an assembly line.
Dual-End Transfer Pusher
Mount a pusher head on one end and a tracking dog on the opposite side to cycle 50mm strokes without adding external guide rails.
Symmetric Lift Station
Equal push and pull forces smoothly lift and lower a 6.7 kg vertical payload, ensuring stable descent without gravitational overshoot.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD20X50 the Right Cylinder?
When sizing this unit, compare its 131.9 N output at 0.5 MPa against adjacent bores: the SDAD16 provides 86.4 N, while the SDAD25 offers 206.2 N. This makes the 20mm bore ideal for medium-duty pick-and-place where a safe working load of roughly 79 N (about 60% of the 0.5 MPa figure) or a vertical lift of 6.7 kg with a 2:1 margin is required. The non-rotating dual-end design is perfect for guided gripper actuation.
This specific SKU lacks a piston magnet, so it cannot directly host reed or electronic switches; choose an -S variant if position feedback is needed. The female M4x0.7 rod-end threads accommodate standard mounting accessories. Remember that a standard cylinder drifts when air is removed or the valve centers, as the fixed bumper only decelerates near stroke end and provides no load-holding capability—add an external rod lock or pilot-operated check valve if suspension is required.
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 SDAD20X50 FAQ
The double-rod design provides equal force in both directions: 131.9 N at 0.5 MPa, 184.7 N at 0.7 MPa, and a theoretical maximum of 27 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa.
No, this specific SKU does not have a built-in piston magnet. You must select the SDAD20X50S variant to use AirTAC reed or electronic switches in the body sensor grooves.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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