Airtac ACQD Double Acting Compact Cylinder ACQD20X40SB
The AirTAC ACQD Double Acting Compact Cylinder ACQD20X40SB 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 ACQD20X40SB
The AirTAC ACQD20X40SB is a double-acting JIS compact cylinder featuring twin rods extending 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 symmetrical thrust is ideal for balanced cycles, and the dual shafts resist torsion without needing an external guide.
This 20mm bore unit includes an M8x1.25 male rod end (-B) for direct load coupling and an integrated magnet (-S) for position sensing. It uses a fixed TPU elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The body operates at 30-500mm/s with M5x0.8 ports, and the second rod end can drive an independent load or sensor flag.
Airtac ACQD Double Acting Compact Cylinder ACQD20X40SB Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD20X40SB |
|---|---|
| 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 ACQD20X40SB
| 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 ACQD20X40SB Is Used
Symmetric Transfer Pusher
Drives a dual-sided pick-and-place head in electronics assembly, using the equal push/pull thrust to maintain balanced part handling without rotational drift.
Dual-Station Actuation
Simultaneously operates two test fixtures on a semiconductor handler, using both rod ends to trigger separate mechanisms in perfect synchronization.
Twin-Guided Stripper
Lifts a small stamping stripper plate in packaging machinery, leveraging the twin rods to resist torsion and prevent tool binding during vertical retraction.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD20X40SB the Right Cylinder?
Providing 117.8N of thrust both ways, this 20mm bore sits between the 16mm (75.4N) and 25mm (188.9N) models at 0.5MPa. Choose this size when your application requires precise symmetric force within a compact footprint. If your mechanism only needs unidirectional thrust, a single-rod ACQ offers a simpler body, while a guided TACQ is better for heavy off-center loads. To order, confirm the 40mm stroke, M8x1.25 male thread, and the built-in magnet for reed or solid-state 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 ACQD20X40SB FAQ
It delivers an equal push and pull force of 117.8N at 0.5MPa and 164.9N at 0.7MPa, with a maximum capacity of 24kgf at 1.0MPa. The standard stroke limit for this 20mm bore is 100mm. It features an M8x1.25 male rod thread and M5x0.8 ports. Push equals pull because the twin rods create identical annular areas in both chambers.
It uses fixed TPU elastomer bumpers at both ends for impact absorption, not adjustable air cushions. The -S option provides a piston magnet compatible with reed or electronic solid-state switches. A plain ACQD does not hold position if air pressure drops; for fail-safe load holding, you must add an external rod lock or pilot-operated check valve.
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Covers non-human-caused product damage.
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