Airtac ACQD Double Acting Compact Cylinder ACQD12X40SB
The AirTAC ACQD Double Acting Compact Cylinder ACQD12X40SB 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 ACQD12X40SB
The AirTAC ACQD12X40SB is a double-acting JIS compact cylinder featuring a 12mm bore and 40mm stroke, engineered with twin rods extending from both ends. Because a rod occupies each chamber, the annular area remains identical in both directions, delivering perfectly balanced push and pull forces of 42.4N at 0.5MPa and 59.4N at 0.7MPa. This symmetric output is ideal for precision cycles requiring consistent bi-directional thrust.
The dual-rod architecture inherently resists rotation and extends the guiding length, allowing you to mount a small tool platform directly without needing a separate external guide. The -B option equips the 6mm rods with male M5x0.8 ends for direct load coupling, while the -S magnet enables position sensing via reed or solid-state switches in the built-in grooves. Deceleration is handled by fixed TPU bumpers at both ends, maintaining a highly compact footprint.
Airtac ACQD Double Acting Compact Cylinder ACQD12X40SB Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD12X40SB |
|---|---|
| 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 ACQD12X40SB
| 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 ACQD12X40SB Is Used
Twin-Guided Pick & Place
Handles small electronic components on a PCB assembly line where the second rod prevents jaw rotation during vertical descent.
Symmetric Parts Transfer
Shifts delicate wafers between processing stations in semiconductor fabrication, utilizing the equal push and pull force for stable bi-directional indexing.
Dual-Station Actuation
Drives a small testing fixture on a packaging machine, using one rod end to move the load and the opposite end to trigger a solid-state sensor flag.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD12X40SB the Right Cylinder?
Selecting this 12mm bore provides 42.4N of equal bidirectional force at 0.5MPa; stepping down is not an option as this is the smallest available bore. If your application requires higher thrust, the 16mm bore raises the output to 75.4N at 0.5MPa. For scenarios needing maximum linear travel, the bore 12 standard stroke tops out at 50mm. If your mechanism only requires force in one direction, a single-rod ACQ cylinder offers a more compact depth, whereas this ACQD12X40SB is specified when anti-rotation stability and dual-end actuation are mandatory. Confirm your ordering needs: the -S magnet, -B male M5x0.8 rod threads, and standard PT M5x0.8 port.
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 ACQD12X40SB FAQ
The push and pull forces are equal at 42.4N @0.5MPa and 59.4N @0.7MPa, with a maximum capacity of 9kgf @1.0MPa. This equality occurs because the twin rods create matching annular areas in both chambers. The standard stroke limit for this 12mm bore is 50mm, and the -B option provides male M5x0.8 rod-end threads.
It uses fixed TPU elastomer bumpers at both ends for end-of-stroke deceleration, meaning there is no adjustable air cushion. For high-speed or high-energy cycles, you should add an external shock absorber. The -S magnet allows tracking via reed or electronic switches mounted in the body grooves, and the second rod end can drive a sensor flag.
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