Airtac ACQD Double Acting Compact Cylinder ACQD50X20SB
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD50X20SB is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø50mm bore and 20mm stroke. The twin rods resist rotation and give equal push and pull force, so it carries and guides a tool platform without a separate anti-rotation guide.
- BoreØ50 mm
- Stroke20 mm
- Port sizePT1/4
- Acting typeDouble acting, double rod
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionBumper (both ends)
About the Airtac ACQD Double Acting Compact Cylinder ACQD50X20SB
The AirTAC ACQD50X20SB is a double-acting JIS compact cylinder featuring twin rods extending from both ends. Because a rod occupies each chamber, the effective annular area is identical in both directions, yielding equal push and pull forces of 824.6N at 0.5MPa and 1154.5N at 0.7MPa. This symmetry is ideal for applications needing balanced bidirectional thrust.
The dual rods inherently resist rotation and provide an extended guide length, allowing you to mount a small tool platform directly without adding an external anti-rotation guide. The second rod end can drive a sensor flag or a secondary load. Built with a male M18x1.5 rod thread, a PT1/4 port, and fixed NBR bumpers, it handles speeds of 30-500mm/s across a -20 to +70C range.
Airtac ACQD Double Acting Compact Cylinder ACQD50X20SB Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD50X20SB |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Double acting, double rod |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 | Bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACQD datasheet. A rod exits both ends, so both directions use the same annular area. Confirm against the product label before installation.
Theoretical Output Force (Ø50mm — equal both ways)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 825 N | 825 N |
| 0.7 MPa | 1155 N | 1155 N |
| Max (@1.0 MPa) | 168 kgf | |
Because a rod occupies both chambers, push and pull forces are EQUAL — the annular area applies in each direction. Actual usable force is lower due to friction; size with a safety margin.
Model Code: Airtac ACQD Double Acting Compact Cylinder ACQD50X20SB
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch sensing (omit = none). |
| B | Male-thread piston rod (omit = female thread). |
Thread: PT standard (G / NPT available). The twin rods resist rotation and add guiding length. Related: ACQ (single rod), ACQJ (adjustable stroke), TACQ (guided).
Where the Airtac ACQD Double Acting Compact Cylinder ACQD50X20SB Is Used
Symmetric Transfer Unit
Drives a dual-sided pick-and-place head in packaging machinery, utilizing the equal push and pull forces to maintain stable horizontal transfer without momentum drift.
Twin-Guided Tooling Platform
Mounts a small machining fixture directly to the protruding rods in electronics assembly, using the extended guide length to prevent deflection and resist torsional loads.
Dual-Station Actuation
Powers a diverter gate on a material handling line, using the second rod end to mechanically trigger a position flag for a solid-state sensor while moving the primary load.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD50X20SB the Right Cylinder?
For 50mm bore sizing, this model provides 824.6N of equal thrust both ways at 0.5MPa. Stepping down to a 40mm bore drops the force to 527.8N, while stepping up to 63mm increases it to 1401.5N. Choose this ACQD50X20SB when symmetric push/pull cycles and anti-rotation are required; a single-rod ACQ fits better if you only need unidirectional push. Confirm the 20mm stroke, the M18x1.5 male rod end, and the built-in magnet for electronic or reed switches.
Quick checklist
- ✓ Equal force both ways at your pressure
- ✓ Anti-rotation needed (twin rods)?
- ✓ Both rod ends usable for tooling?
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Both rods share the load — keep force concentric.
- check Twin rods resist rotation but avoid heavy side load.
- check Handle the C-clip carefully; seat it fully in its groove.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQD Double Acting Compact Cylinder ACQD50X20SB FAQ
The ACQD50X20SB generates equal push and pull forces of 824.6N at 0.5MPa and 1154.5N at 0.7MPa, with a maximum of 168kgf at 1.0MPa. Push equals pull because the double-rod design creates the same effective annular area in both directions. The maximum standard stroke for this 50mm bore is 100mm.
It uses fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration, not adjustable air cushions. A plain ACQD does not hold its position if air pressure is lost; the rod will drift. For fail-safe load holding, an external rod lock or pilot-operated check valve is required.
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