Airtac SDAD Double Rod Slim Cylinder SDAD20X30B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD20X30B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø20mm bore, 30mm 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
- Stroke30 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 SDAD20X30B
The AirTAC SDAD20X30B is a compact double-acting cylinder featuring a piston rod exiting both ends of its 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 either direction. This symmetric output is ideal for balancing loads that must move uniformly without twisting.
This specific SKU includes male M6x1.0 threaded rods on both ends for direct tool mounting, replacing the default female M4x0.7. The short body design minimizes axial footprint where space is tight, while fixed NBR bumpers absorb end-of-stroke shock. Note this version lacks a piston magnet, so position sensing is not supported.
Airtac SDAD Double Rod Slim Cylinder SDAD20X30B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD20X30B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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 SDAD20X30B
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 20 | Bore size in mm. |
| ×30 | 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 SDAD20X30B Is Used
Gripper Jaw Sync
Drives opposing gripper fingers with equal 131.9 N force on extend and retract, maintaining parallel clamping on delicate electronics without rotational skew.
Dual-End Transfer
Mounts a pusher on the front male M6 rod and a tracking dog on the rear rod to index parts on a conveyor within a tight 30 mm stroke envelope.
Flap Deflection
Folds carton flaps symmetrically using the anti-twist through-rod, ensuring the male threaded ends secure custom forming tools securely in confined spaces.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD20X30B 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, and the SDAD25 offers 206.2 N. A practical safe working load is roughly 79 N (about 60 percent of the 0.5 MPa figure), allowing a vertical lift of approximately 6.7 kg with a 2:1 safety margin. The through-rod geometry prevents rotation and lets you drive a tool on one end while using the opposite end for a mechanical dog.
Confirm the 20 mm bore, 30 mm stroke, and M5x0.8 port match your pneumatic manifold. Because this SKU has no -S magnet, magnetic switches cannot be used. Remember that a standard cylinder drifts when air pressure is lost or the valve centers; the fixed bumper only decelerates near stroke end and does not lock the load. Use an external pilot-operated check valve for load holding.
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 SDAD20X30B FAQ
The double-rod design provides equal force in both directions: 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 would need the -S option variant to use AirTAC reed or electronic switches in the body sensor grooves.
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