Airtac ACQD Double Acting Compact Cylinder ACQD12X40S
The AirTAC ACQD Double Acting Compact Cylinder ACQD12X40S is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø12mm 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.
- BoreØ12 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM3×0.5 (F) / M5×0.8 (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 ACQD12X40S
The AirTAC ACQD12X40S is a double-acting JIS compact cylinder featuring twin Ø6mm rods exiting both ends. Because a rod occupies each chamber, the annular area is identical in both directions, yielding exactly 42.4N of force at 0.5MPa and 59.4N at 0.7MPa on both the push and pull strokes. This symmetric performance is ideal for cycles demanding identical force in both directions.
The dual-rod architecture resists rotation and extends the guide length, allowing you to mount a small tool platform directly without needing an external anti-rotation guide. The second rod end can drive a sensor flag or a secondary load. Built with a fixed TPU elastomer bumper at each end for end-of-stroke deceleration, this 40mm stroke unit includes a built-in piston magnet (-S) compatible with reed or solid-state switches, and features M5x0.8 PT pneumatic ports.
Airtac ACQD Double Acting Compact Cylinder ACQD12X40S Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD12X40S |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø12 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod |
| 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 | Bumper (both ends) |
| Max standard stroke | Up to 50 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 (Ø12mm — equal both ways)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 42 N | 42 N |
| 0.7 MPa | 59 N | 59 N |
| Max (@1.0 MPa) | 9 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 ACQD12X40S
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 12 | 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 ACQD12X40S Is Used
Symmetric Parts Transfer
Drives a small electronic component shuttle across a PCB assembly station, utilizing the equal push and pull forces to maintain consistent positioning tension in both travel directions.
Twin-Guided Pick-and-Place
Carries a miniature pneumatic gripper on a semiconductor handling machine, leveraging the extended guide length of the dual rods to prevent jaw deflection without an external guide rail.
Dual-Station Actuation
Simultaneously triggers two micro-valves on a compact packaging line by mounting a cam on one rod end and the primary tooling on the opposite end.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD12X40S the Right Cylinder?
When sizing this 12mm bore actuator, stepping down is not an option as it is the smallest available bore. Stepping up to a 16mm bore increases the equal bidirectional force to 75.4N at 0.5MPa, which is preferable if your payload exceeds the 42.4N rating of this model. If your mechanism already features an external linear guide and you do not require equal push/pull force or a secondary rod end, a standard single-rod ACQ12 cylinder provides a simpler, more compact solution. To order, confirm the 40mm stroke, the -S magnet requirement, and that the default female M3x0.5 rod-end thread suits your mounting hardware.
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 ACQD12X40S FAQ
The ACQD12X40S delivers an equal push and pull force of 42.4N at 0.5MPa and 59.4N at 0.7MPa, with a maximum capacity of 9kgf at 1.0MPa. Push and pull forces are identical because the twin rods create the same annular piston area in both chambers. The maximum standard stroke available for this 12mm bore is 50mm.
No, a plain ACQD cylinder will drift and drop the load if air pressure is lost or the valve is centered. The fixed TPU elastomer bumpers only decelerate the piston near the stroke ends and do not act as a locking mechanism. For fail-safe load holding, you must install an external rod lock or a pilot-operated check valve.
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