Airtac SDAD Double Rod Slim Cylinder SDAD20X65B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD20X65B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø20mm bore, 65mm 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
- Stroke65 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 SDAD20X65B
The AirTAC SDAD20X65B is a compact double-acting 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 131.9 N of force at 0.5 MPa in each direction. This symmetric output is ideal for balanced tooling.
This specific SKU includes male M6x1.0 threads on both rod ends for direct mounting. The 65 mm stroke stays within the 100 mm standard limit, while the short body profile saves axial depth. A fixed NBR bumper decelerates the piston near stroke end, and the unit operates smoothly at speeds between 30 and 500 mm/s.
Airtac SDAD Double Rod Slim Cylinder SDAD20X65B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD20X65B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø20 mm |
| Stroke | 65 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 SDAD20X65B
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 20 | Bore size in mm. |
| ×65 | 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 SDAD20X65B Is Used
Gripper Synchronization
Drives a dual-jaw gripper where the male M6x1.0 rod end mounts the tooling and the equal 131.9 N push/pull force keeps jaw movement perfectly balanced.
Transfer Pusher
Pushes parts along a conveyor using the 65 mm stroke, relying on the through-rod to prevent rotational twist during the extend and retract cycles.
Dual-End Pin Insertion
Presses a pin on the primary end while a secondary mechanism tracks the opposite rod, utilizing the compact 20 mm body to fit within tight machine cells.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD20X65B the Right Cylinder?
When sizing this 20 mm bore, consider the SDAD16 which provides 86.4 N at 0.5 MPa, or step up to the SDAD25 offering 206.2 N at 0.5 MPa. The SDAD20X65B provides a safe working load of roughly 79 N, or about 6.7 kg of vertical lift with a 2:1 safety margin.
The through-rod geometry resists twisting and allows driving a tool on one end while mounting a dog on the opposite side. Note that a plain cylinder drifts when air is lost; add an external rod lock or pilot-operated check valve for load holding. This configuration lacks a piston magnet, so position sensing requires the -S variant. It features an M5x0.8 port and male M6x1.0 rod threads.
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 SDAD20X65B FAQ
The push and pull forces are equal at 131.9 N at 0.5 MPa and 184.7 N at 0.7 MPa. The theoretical maximum is 27 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No, this specific SKU does not have a built-in piston magnet. You must select the -S option to use AirTAC reed or electronic switches in the body sensor grooves.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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