Airtac SDAD Double Rod Slim Cylinder SDAD16X55B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD16X55B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø16mm bore, 55mm 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.
- BoreØ16 mm
- Stroke55 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM3×0.5 (F) / M5×0.8 (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 SDAD16X55B
The AirTAC SDAD16X55B is a compact double-acting cylinder featuring a 16mm bore and 55mm stroke, with piston rods exiting both ends. Because a rod occupies each chamber, the annular area is identical on extend and retract, yielding exactly 86.4 N of force at 0.5 MPa in both directions. This symmetry is ideal for balancing loads that move back and forth.
The through-rod geometry inherently resists twisting, providing stable guidance without external rails. The short riveted body saves axial mounting depth where a longer cylinder will not fit. This specific SKU uses male M5x0.8 threads on both rod ends and lacks a piston magnet, so it cannot host magnetic switches.
Airtac SDAD Double Rod Slim Cylinder SDAD16X55B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD16X55B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø16 mm |
| Stroke | 55 mm |
| Acting type | Double acting, rod both ends |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 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 50 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 (Ø16mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 86 N |
| 0.7 MPa | 121 N |
| Max (@1.0 MPa) | 18 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 SDAD16X55B
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 16 | Bore size in mm. |
| ×55 | 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 SDAD16X55B Is Used
Symmetric Transfer
Drives a shuttle back and forth with identical 86.4 N push and pull force, preventing stalling on the return stroke.
Anti-Twist Clamping
Uses the through-rod torsional resistance to hold a small machining fixture steady without rotating under side load.
Dual-End Sorting
Mounts a pusher on one male M5x0.8 rod end and a mechanical dog on the opposite end to trip external limit valves.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD16X55B the Right Cylinder?
When sizing this unit, compare its bidirectional 86.4 N output at 0.5 MPa against adjacent bores: the SDAD12 provides 42.4 N, while the SDAD20 offers 131.9 N. For a safe working load, plan for roughly 52 N, which allows a 2:1 safety margin and yields a vertical lift capacity of about 4.4 kg.
The dual-end male M5x0.8 rods let you mount a tool on one side and a dog on the other. Remember that a plain SDAD does not hold position if air is lost or the valve centers; the piston drifts. For load holding without live pressure, install an external rod lock or pilot-operated check valve. End stopping relies on a fixed NBR bumper, not an adjustable air cushion.
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 SDAD16X55B FAQ
The double-rod design provides equal force in both directions: 86.4 N at 0.5 MPa, 121 N at 0.7 MPa, and a theoretical maximum of 18 kgf at 1.0 MPa.
No, this specific SKU does not have a piston magnet. You would need the -S variant to use AirTAC reed or electronic switches. The dual male M5x0.8 rod ends still allow mechanical dual-end mounting.
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Standard models are processed and dispatched in 3-5 business days.
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