Airtac ACQD Double Acting Compact Cylinder ACQD40X70
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD40X70 is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø40mm bore and 70mm 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
- Stroke70 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 ACQD40X70
The AirTAC ACQD40X70 is a double-acting JIS compact cylinder featuring twin Ø16mm rods exiting both ends. Because a rod occupies each chamber, the annular area is identical in both directions, yielding perfectly equal push and pull forces of 527.8N at 0.5MPa and 738.9N at 0.7MPa. This symmetry is ideal for applications requiring consistent bi-directional thrust without force bias.
The dual-rod architecture inherently resists torsion and extends the guiding length, allowing you to mount a small tool platform directly without needing an external anti-rotation guide. This 40mm bore unit includes a 70mm stroke, PT1/8 ports, and a female M8x1.25 rod-end thread. Fixed NBR elastomer bumpers absorb impact energy at stroke ends, while the body retains sensor grooves for adding position switches.
Airtac ACQD Double Acting Compact Cylinder ACQD40X70 Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD40X70 |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 70 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 ACQD40X70
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×70 | 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 ACQD40X70 Is Used
Symmetric Transfer Shuttle
Drives a dual-sided parts shuttle in packaging machinery, using the equal push and pull thrust to maintain consistent cycle times in both directions.
Twin-Guided Pusher Station
Mounts a machining fixture directly to the twin rods on a CNC line, leveraging the extended guide length to prevent torsion without external rails.
Dual-Station Actuation
Simultaneously operates two clamps from a single compact body on an assembly carousel, using the second protruding rod end to drive a secondary load.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD40X70 the Right Cylinder?
Selecting this 40mm bore provides 527.8N of thrust both ways at 0.5MPa; dropping to a 32mm bore reduces that to 301.6N, whereas stepping up to a 50mm bore offers 824.6N. If your payload demands minimal rotation tolerance but you only need one-sided actuation, a single-rod ACQ might suffice, though this ACQD40X70 is superior for symmetric dual-station driving. Remember that this specific configuration ships without a magnet; if you require reed or solid-state switch triggering, you must select the -S option. Confirm your need for the default female M8x1.25 thread, PT1/8 port, and 70mm stroke when ordering.
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 ACQD40X70 FAQ
The ACQD40X70 generates an equal push and pull force of 527.8N at 0.5MPa and 738.9N at 0.7MPa, with a maximum theoretical capacity of 108kgf at 1.0MPa. Push and pull forces are identical because the twin rods create the same annular area in both chambers. It has a 70mm stroke (max standard stroke for this bore is 100mm), a PT1/8 port, and a female M8x1.25 rod-end thread.
Deceleration is handled by fixed NBR elastomer bumpers at both ends, which are not adjustable; for high-energy cycles, use an external shock absorber. A plain ACQD does not hold its load if air pressure is lost or the valve is centered, as the bumper only functions near the stroke end. For fail-safe load holding, you must install an external rod lock or pilot-operated check valve.
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