Airtac ACQD Double Acting Compact Cylinder ACQD20X40
The AirTAC ACQD Double Acting Compact Cylinder ACQD20X40 is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø20mm bore and 40mm 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.
- BoreØ20 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM5×0.8 (F) / M8×1.25 (B)
- CushionBumper (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 ACQD Double Acting Compact Cylinder ACQD20X40
The AirTAC ACQD20X40 is a double-acting JIS compact cylinder where a rod protrudes from both ends. Because a rod occupies each chamber, the annular area is identical in both directions, yielding equal push and pull forces of 117.8N at 0.5MPa and 164.9N at 0.7MPa. The twin rods resist rotation and provide a longer guide length, allowing you to carry a small tool platform without needing an external anti-rotation guide.
This 20mm bore, 40mm stroke unit features a fixed TPU elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. It uses an M5x0.8 port and a female M5x0.8 rod-end thread. The body includes magnetic-switch grooves, but this specific configuration ships without a magnet. Note that a plain ACQD does not hold position upon air loss; an external rod lock or pilot check valve is required for fail-safe holding.
Airtac ACQD Double Acting Compact Cylinder ACQD20X40 Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD20X40 |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø20 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 (Ø20mm — equal both ways)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 118 N | 118 N |
| 0.7 MPa | 165 N | 165 N |
| Max (@1.0 MPa) | 24 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 ACQD20X40
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×40 | 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 ACQD20X40 Is Used
Symmetric Transfer Arms
Drives a dual-sided pick-and-place arm in electronics assembly where equal push and pull forces keep the horizontal stroke perfectly balanced.
Twin-Guided Pushers
Pushes parts along a machining center conveyor using the twin rods to prevent platform yaw without installing a separate external guide rail.
Dual-Station Actuation
Actuates a secondary ejector flag on a packaging line using the second protruding rod end while the primary side drives the main tooling.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD20X40 the Right Cylinder?
At 0.5MPa, this 20mm bore generates 117.8N of force both ways. Stepping down to a 16mm bore yields 75.4N, while moving up to a 25mm bore provides 188.9N. If your application requires unequal push and pull forces, a single-rod ACQ cylinder is a better choice. For ordering, confirm the 40mm stroke, the standard female M5x0.8 rod thread, and the M5x0.8 PT port. The maximum standard stroke for this bore is 100mm.
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 ACQD20X40 FAQ
The ACQD20X40 delivers an equal push and pull force of 117.8N at 0.5MPa and 164.9N at 0.7MPa, with a maximum of 24kgf at 1.0MPa. Push and pull forces are equal because the double-rod design creates the same annular area in both chambers. The maximum standard stroke available for this 20mm bore is 100mm.
It uses a fixed TPU elastomer bumper at each end to decelerate the load near the stroke ends, meaning there is no adjustable air cushion. Furthermore, a plain ACQD does not hold its load if air pressure is lost; the rod will drift. For fail-safe load holding, you must install an external rod lock or a pilot-operated check valve.
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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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