Airtac ACQD Double Acting Compact Cylinder ACQD40X5S
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD40X5S is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø40mm bore and 5mm 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.
- BoreØ40 mm
- Stroke5 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionBumper (both ends)
About the Airtac ACQD Double Acting Compact Cylinder ACQD40X5S
The AirTAC ACQD40X5S is a double-acting JIS compact cylinder featuring twin rods that exit both ends of its C-clip riveted body. Because a rod occupies both chambers, the annular area is identical in each direction, yielding equal push and pull force of 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa. This symmetry is ideal for precise 5mm movements where bidirectional consistency is critical.
Twin rods inherently resist rotation and provide a longer 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. Fixed NBR elastomer bumpers at both ends handle end-of-stroke deceleration, and the -S magnet enables tracking with reed or solid-state switches via the body grooves.
Airtac ACQD Double Acting Compact Cylinder ACQD40X5S Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD40X5S |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 mm |
| Acting type | Double acting, double rod |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 (Ø40mm — equal both ways)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | 739 N |
| Max (@1.0 MPa) | 108 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 ACQD40X5S
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×5 | 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 ACQD40X5S Is Used
Micro-Clamping Fixture
Holds thin metal sheet metal securely in a stamping press using the equal pull force, ensuring no rotational drift during a 5mm clamping action.
Symmetric Transfer Gate
Drives a short diverter blade on a packaging line where the second rod end mounts a position flag, maintaining stable guidance without an external guide rail.
Dual-Station Forming Stop
Applies identical 527.8 N push and pull forces on a small press to shape light components, relying on the twin rods to prevent binding over the short 5mm travel.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD40X5S the Right Cylinder?
For a 5mm stroke, this 40mm bore delivers 527.8 N at 0.5 MPa. If you need less force, the 32mm bore provides 301.6 N, or for heavier loads, the 50mm bore gives 824.6 N. If your application requires a single pushing rod or lacks space for dual protrusions, a standard single-rod ACQ cylinder fits better. When ordering, confirm the PT1/8 port, the 16mm rod with an M8x1.25 female thread end, and the -S magnet option for sensor compatibility.
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 ACQD40X5S FAQ
This double-rod cylinder provides equal push and pull forces of 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a maximum holding capability of 108 kgf at 1.0 MPa. The push and pull forces are identical because the annular piston area is the same in both directions. The maximum standard stroke available for this 40mm bore is 100mm.
It uses fixed NBR elastomer bumpers at both ends to decelerate the piston near stroke end, which are not adjustable. A plain ACQD does not hold its position 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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