Airtac ACQD Double Acting Compact Cylinder ACQD40X50
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD40X50 is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø40mm bore and 50mm 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
- Stroke50 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 ACQD40X50
The AirTAC ACQD40X50 is a double-acting JIS compact cylinder featuring a 16mm piston rod protruding from both ends. Because a rod occupies each chamber, the annular area is identical in both directions, generating 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 drop.
Twin rods provide extended guide length and high torsional resistance, allowing you to mount a tooling platform directly without needing an external anti-rotation guide. The body includes magnetic-switch grooves, though this specific configuration ships without a magnet. Deceleration is handled by fixed NBR elastomer bumpers at both ends, and fluid filtration to 40um is required.
Airtac ACQD Double Acting Compact Cylinder ACQD40X50 Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD40X50 |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 ACQD40X50
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 ACQD40X50 Is Used
Symmetric Transfer Pusher
Drives a bi-directional parts shuttle on an assembly line where equal 527.8N push and pull forces prevent stalling during reversal.
Twin-Guided Forming Press
Resists torsional deflection during light metal stamping, using the dual rods to maintain parallelism on the lower tooling platform.
Dual-Station Actuator
Uses the secondary rod end to trigger a mechanical flag on packaging machinery while the primary end executes the 50mm work stroke.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD40X50 the Right Cylinder?
This 40mm bore generates 527.8N of force both ways at 0.5MPa. If your application requires less thrust, the adjacent 32mm bore provides 301.6N; stepping up to the 50mm bore yields 824.6N. Choose the ACQD40X50 when you need symmetric push/pull cycles and torsional stability within a 50mm stroke. If your mechanism only needs a single extension and push force exceeds pull, a single-rod ACQ series is more appropriate. For heavier lateral loads exceeding the twin rods' capacity, consider a guided TACQ cylinder. Confirm the default female M8x1.25 rod-end thread, PT1/8 port, and 100mm maximum standard stroke limit 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 ACQD40X50 FAQ
The ACQD40X50 provides equal push and pull forces of 527.8N at 0.5MPa and 738.9N at 0.7MPa, with a maximum capacity of 108kgf at 1.0MPa. Push equals pull because the double-rod design creates the same annular area in both chambers. The maximum standard stroke available for this 40mm bore is 100mm.
It uses fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration, which are not adjustable. For high kinetic energy loads, add an external shock absorber. A plain ACQ-type cylinder does not hold its load if air pressure is lost; for fail-safe holding, you must install an external rod lock or pilot-operated check valve.
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