Airtac SDAD Double Rod Slim Cylinder SDAD40X20SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X20SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm 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.
- BoreØ40 mm
- Stroke20 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (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 SDAD40X20SB
The AirTAC SDAD40X20SB is a compact double-acting cylinder featuring a through-rod that exits both ends of the riveted body. Because the rod occupies each chamber equally, the annular area remains constant, delivering identical push and pull forces of 527.8 N at 0.5 MPa. This symmetric output is ideal for balanced tooling tasks.
This specific configuration includes a built-in piston magnet for AirTAC reed or electronic switches, alongside male M14x1.5 rod threads on both ends. The short body design minimizes axial mounting depth, while fixed NBR bumpers absorb end-of-stroke shock. Operating speed spans 30-500 mm/s.
Airtac SDAD Double Rod Slim Cylinder SDAD40X20SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X20SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 SDAD40X20SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | 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 SDAD40X20SB Is Used
Gripper Actuation
Drives a synchronized gripper where the male M14x1.5 rod threads mount custom fingers, relying on the 527.8 N equal bidirectional force to clamp parts securely.
Transfer Pushers
Uses the dual-end through-rod to push a product forward while a reed switch tracks position on the opposite side, preventing rotation during the transfer cycle.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X20SB the Right Cylinder?
When sizing this unit, consider the adjacent bores: the SDAD32 provides 345.6 N at 0.5 MPa, while the SDAD50 offers 824.7 N.
The through-rod geometry resists twisting and permits driving a tool on one end while mounting a dog on the opposite side. Remember that a standard cylinder drifts when air is lost or the valve centers; utilize an external rod lock or pilot-operated check valve for strict load holding. This SB variant features PT1/8 ports, a 20mm stroke, the S magnet, and male M14x1.5 rods.
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 SDAD40X20SB FAQ
The push and pull forces are identical because the rod exits both ends. It generates 527.8 N at 0.5 MPa, 738.9 N at 0.7 MPa, and a theoretical maximum of 108 kgf at 1.0 MPa. The maximum operating pressure is 1.0 MPa.
Yes. The through-rod design resists twisting and allows you to attach a tool to the male M14x1.5 thread on one end while mounting a dog for a reed or electronic switch on the opposite end. The built-in S magnet enables this position sensing.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
Related AirTAC SDAD Cylinders
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