Airtac ACQD Double Acting Compact Cylinder ACQD40X50B
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD40X50B 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 ACQD40X50B
The AirTAC ACQD40X50B is a double-acting JIS compact cylinder where a piston rod protrudes from both ends of the riveted body. Because a rod occupies both internal chambers, the effective annular area is identical in each direction. This yields equal push and pull forces of 527.8N at 0.5MPa and 738.9N at 0.7MPa, enabling perfectly symmetric cycles without force mismatch.
The twin 16mm rods resist rotation and provide a longer guide length, allowing you to mount a small tool platform directly without needing an external anti-rotation guide. This unit ships with male M14x1.5 rod-end threads for direct load coupling, fixed NBR bumpers for end-of-stroke deceleration, and PT1/8 ports. It lacks a magnet, though the body retains sensor grooves for adding external switches.
Airtac ACQD Double Acting Compact Cylinder ACQD40X50B Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD40X50B |
|---|---|
| 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 ACQD40X50B
| 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 ACQD40X50B Is Used
Symmetric Transfer Arms
Drives a dual-sided pick-and-place arm where the equal 527.8N thrust in both directions ensures balanced acceleration and deceleration of packaged goods.
Twin-Guided Tool Platform
Mounts a machining fixture directly to the dual rods on an automated lathe, leveraging the extended guide length to resist rotational torque without external guides.
Dual-Station Actuation
Uses the second protruding rod end to trigger a mechanical flag or drive a secondary stopper on a packaging line, actuating two stations from one compact body.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD40X50B the Right Cylinder?
Providing 527.8N of force both ways, this 40mm bore model sits between the 32mm (301.6N) and 50mm (824.6N) sizes. Choose this if your application requires symmetric thrust around 500N and a 50mm stroke. If your mechanism only needs force in one direction, a single-rod ACQ cylinder is simpler. If heavy lateral loads exceed the twin rods' capacity, a guided TACQ cylinder is recommended. When ordering, confirm the male M14x1.5 thread, PT1/8 port, and note that a plain ACQD does not hold position on air loss; use an external rod lock or pilot check valve for fail-safe holding.
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 ACQD40X50B FAQ
It delivers equal push and pull forces of 527.8N at 0.5MPa and 738.9N at 0.7MPa, with a maximum holding force of 108kgf at 1.0MPa. Push and pull are equal because the rod occupies both chambers, creating identical annular areas. The standard stroke limit for this 40mm bore is 100mm, it uses PT1/8 ports, and the male rod-end thread is M14x1.5.
The twin 16mm rods resist rotation and provide extended guiding without an external guide. It uses fixed NBR bumpers at both ends for deceleration, not adjustable air cushions. A plain ACQD does not hold its load if air is lost; the rod drifts, so you must add an external rod lock or pilot-operated check valve for fail-safe holding.
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