Airtac SDAD Double Rod Slim Cylinder SDAD20X80
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD20X80 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø20mm bore, 80mm 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
- Stroke80 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 SDAD20X80
The AirTAC SDAD20X80 is a compact double-acting cylinder featuring a piston rod exiting both ends of its riveted body. Because the rod occupies each chamber equally, the annular area remains constant, delivering an identical push and pull force of 131.9 N at 0.5 MPa. This symmetry is highly advantageous for driving loads that require consistent momentum in both directions.
The through-rod geometry inherently resists twisting, allowing you to mount a work tool on one end while using the opposite side for a secondary operation. With an 80 mm stroke and an 8 mm rod diameter, this unit fits into tight machinery envelopes. It relies on a fixed NBR bumper at each end to decelerate the stroke, and this specific SKU lacks a piston magnet, so it cannot support position sensing.
Airtac SDAD Double Rod Slim Cylinder SDAD20X80 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD20X80 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø20 mm |
| Stroke | 80 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 SDAD20X80
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 20 | Bore size in mm. |
| ×80 | 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 SDAD20X80 Is Used
Symmetric Transfer
Drives a pick-and-place head with 131.9 N of equal force extending and retracting, ensuring smooth part handoff without momentum shifts.
Anti-Rotation Guide
The dual 8 mm through-rod resists twisting during vertical pressing tasks, maintaining tool alignment over the 80 mm travel.
Dual-End Tooling
Mounts a forming die on the primary end while the opposing rod side actuates a secondary ejector pin simultaneously.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD20X80 the Right Cylinder?
When sizing this 20 mm bore unit, consider the SDAD16 which yields 86.4 N at 0.5 MPa, or step up to the SDAD25 providing 206.2 N at 0.5 MPa. The 131.9 N output at 0.5 MPa translates to a safe working load of roughly 79 N, or a vertical lift capacity of about 6.7 kg with a 2:1 safety margin. The 80 mm stroke is well within the 100 mm standard maximum, and the air connection is an M5x0.8 port.
The dual-end rod uses a female M4x0.7 thread on each side. Remember that a plain cylinder drifts when air is lost or the valve centers, as the NBR bumpers only decelerate near stroke end rather than locking the load; employ an external rod lock or pilot-operated check valve for strict position holding. If sensing is required, you must select the -S magnet variant to utilize reed or electronic switches.
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 SDAD20X80 FAQ
The force is equal in both directions due to the double-rod design. It generates 131.9 N at 0.5 MPa and 184.7 N at 0.7 MPa, with a theoretical maximum of 27 kgf at 1.0 MPa. The maximum operating pressure is 1.0 MPa.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches, you must select the SDAD20X80S variant which includes the built-in magnet for sensing.
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