Airtac ACQD Double Acting Compact Cylinder ACQD40X25B
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD40X25B is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø40mm bore and 25mm 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
- Stroke25 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 ACQD40X25B
The AirTAC ACQD40X25B is a double-acting JIS compact cylinder featuring a twin-rod design where a piston extends from both body ends. Because a rod occupies each internal chamber, the effective annular area remains identical in both directions. This yields perfectly equal push and pull forces of 527.8N at 0.5MPa and 738.9N at 0.7MPa, enabling highly symmetric actuation cycles.
This 40mm bore unit utilizes a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The male M14x1.5 rod-end thread couples directly to your tooling, while the second protruding shaft can drive a sensor flag or secondary load. Operating pressure spans 0.15-1.0MPa, and the integrated C-clip riveted body maintains a highly compact footprint.
Airtac ACQD Double Acting Compact Cylinder ACQD40X25B Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD40X25B |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 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 ACQD40X25B
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 ACQD40X25B Is Used
Symmetric Transfer Unit
Drives a dual-sided pick-and-place head in electronics assembly, using the equal push and pull forces to maintain stable, balanced material handling.
Twin-Guided Pusher
Positions workpieces on a packaging conveyor, relying on the two rods to prevent platform rotation without needing a bulky external linear guide.
Dual-Station Actuation
Simultaneously operates two separate clamps on an automated machining fixture, using the second rod end to drive the secondary mechanism directly.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD40X25B the Right Cylinder?
Selecting this 40mm bore with a 25mm stroke provides 527.8N of force at 0.5MPa. If your application requires less force, the 32mm bore generates 301.6N, whereas stepping up to the 50mm bore yields 824.6N. A single-rod ACQ cylinder is preferable if you only need standard unidirectional pushing, and a guided TACQ unit fits better for absorbing heavy lateral moments. This specific configuration ships without a magnet, but the body retains sensor grooves for adding external switches. It features the -B male rod thread and PT1/8 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 ACQD40X25B FAQ
It delivers an equal push and pull force of 527.8N at 0.5MPa and 738.9N at 0.7MPa, with a maximum holding capacity of 108kgf at 1.0MPa. Push and pull forces are identical because the rod occupies both internal chambers, creating the same effective annular area in each direction. The maximum standard stroke available for this 40mm bore is 100mm.
It uses a fixed NBR elastomer bumper at both ends for impact absorption, meaning there is no adjustable air cushion. A plain ACQD does not hold its load when air is lost or a valve is centered, as the rod will drift; for fail-safe holding, an external rod lock or pilot-operated check valve is required.
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