Airtac ACQD Double Acting Compact Cylinder ACQD40X40
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD40X40 is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø40mm 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.
- BoreØ40 mm
- Stroke40 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (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 ACQD40X40
The AirTAC ACQD40X40 is a double-acting JIS compact cylinder featuring twin rods extending from both ends. Because a rod occupies each chamber, the annular area remains identical in both directions, yielding equal push and pull forces of 527.8N at 0.5MPa (738.9N at 0.7MPa). This symmetric thrust enables perfectly balanced push/pull cycles without force drop. The dual-rod architecture resists rotation and extends guide length, eliminating the need for a separate external anti-rotation guide.
Built with a compact C-clip and riveted body, this 40mm bore unit incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. It uses a PT1/8 port and a Ø16mm piston rod with a female M8x1.25 thread end. While this specific model ships without a magnet, the body retains magnetic-switch grooves for adding sensors later. Note that a plain double-rod cylinder does not hold position on air loss; a pilot-operated check valve is required for fail-safe load holding.
Airtac ACQD Double Acting Compact Cylinder ACQD40X40 Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD40X40 |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 ACQD40X40
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 40 | 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 ACQD40X40 Is Used
Twin-Guided Tool Platform
Drives a machining fixture on a CNC lathe, using the dual rods to carry the tool platform and prevent rotational deflection under cutting loads.
Symmetric Transfer Unit
Executes balanced pick-and-place movements on an electronics assembly line, leveraging equal push and pull forces for consistent cycle times.
Dual-Station Actuation
Actuates a sealing press in a packaging facility, utilizing the second rod end to simultaneously trigger a mechanical flag for a downstream sensor.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD40X40 the Right Cylinder?
For sizing, the adjacent Ø32 bore yields 301.6N at 0.5MPa, while the larger Ø50 bore provides 824.6N. This 40mm option fits applications needing around 528N symmetric thrust. If your payload requires only one-sided extension and push force can exceed pull force, a single-rod ACQ cylinder is more space-efficient. Alternatively, for heavy off-center loads demanding extreme precision, a guided TACQ cylinder offers integrated linear bearings. When ordering, confirm the 40mm stroke, PT1/8 porting, and default female M8x1.25 rod-end thread.
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 ACQD40X40 FAQ
The ACQD40X40 delivers an equal push and pull force of 527.8N at 0.5MPa and 738.9N at 0.7MPa, with a maximum capacity of 108kgf at 1.0MPa. Push and pull forces are identical because the double-rod design creates the same annular area in both chambers. The maximum standard stroke is 100mm, operating pressure is 0.15-1.0MPa, and speed ranges from 30-500mm/s.
The twin rods resist rotation and provide a longer guide length without needing an external guide. It uses fixed NBR elastomer bumpers at both ends for deceleration, not adjustable air cushions. The body has sensor grooves, but this specific model ships without a magnet. It does not hold its load if air is lost; a separate external rod lock or pilot check valve is required for fail-safe holding.
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