Airtac SDAD Double Rod Slim Cylinder SDAD80X20B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD80X20B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø80mm 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.
- BoreØ80 mm
- Stroke20 mm
- Port sizePT3/8
- Acting typeDouble acting, double rod
- Rod threadM14×1.5 (F) / M22×1.5 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDAD Double Rod Slim Cylinder SDAD80X20B
The AirTAC SDAD80X20B is a double-acting compact cylinder featuring a through-rod that exits both ends of the riveted body. Because the piston rod occupies both chambers, the annular area is identical in each direction, yielding equal push and pull forces of 2267.8 N at 0.5 MPa. This symmetric thrust is ideal for balanced actuation tasks.
This specific SKU includes male M22x1.5 threaded rod ends on both sides, allowing direct mounting of heavy tooling. The short body design minimizes axial footprint, while a fixed NBR bumper decelerates the piston at stroke extremes. Note that this variant lacks a piston magnet, so position sensing is not supported.
Airtac SDAD Double Rod Slim Cylinder SDAD80X20B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD80X20B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT3/8 |
| Rod end thread | M14×1.5 female / M22×1.5 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 (Ø80mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 2268 N |
| 0.7 MPa | 3175 N |
| Max (@1.0 MPa) | 463 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 SDAD80X20B
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 80 | 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 SDAD80X20B Is Used
Precision Grinding Jig
Drives a grinding head on one end while a matching dummy rod exits the rear, maintaining perfectly symmetric 2267.8 N thrust and resisting torsional twist during fine material removal.
Balanced Lift Platform
Lifts a heavy platen using both male M22x1.5 rod ends, ensuring the load rises evenly without skewing thanks to the anti-rotation through-rod design.
Heavy Duty Ejector
Ejects dense machined parts from a press with equal force on extension and retraction, pulling the tooling back reliably at the same 2267.8 N capacity.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD80X20B the Right Cylinder?
When sizing this 80 mm bore unit, consider the SDAD63 which provides 1401.5 N at 0.5 MPa, or step up to the SDAD100 offering 3524.9 N at 0.5 MPa. The through-rod geometry prevents twisting during operation and permits driving a load on one end while mounting a secondary mechanism on the opposite male M22x1.5 thread.
This cylinder uses a PT3/8 port and operates at 30-500 mm/s. Be aware that a standard cylinder drifts when air pressure is lost or the valve is centered; the fixed NBR bumper only decelerates near the stroke end and does not function as a lock. For secure load holding without live pressure, install 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 SDAD80X20B FAQ
The push and pull forces are equal at 2267.8 N at 0.5 MPa and 3175 N at 0.7 MPa. The theoretical maximum is 463 kgf at 1.0 MPa in both directions. The maximum operating pressure is 1.0 MPa.
The through-rod provides anti-rotation resistance and allows you to mount tooling on both male M22x1.5 threaded ends. It also ensures equal force both ways, which is useful for symmetric loads.
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