Airtac ACQD Double Acting Compact Cylinder ACQD40X50S
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD40X50S 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)
- 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 ACQD40X50S
The AirTAC ACQD40X50S is a double-acting JIS compact cylinder featuring twin rods that exit from both body ends. Because a rod occupies each chamber, the effective annular area is identical in both directions, generating an equal 527.8N of push and pull force at 0.5 MPa. This symmetric thrust is ideal for balanced transfer cycles, yielding a maximum output of 108kgf at 1.0 MPa.
Twin Ø16mm rods inherently resist torsion and lengthen the guide bearing span, allowing you to mount a small tool platform directly without needing a separate external anti-rotation guide. The second rod end can drive a secondary load or mount a sensor flag. Each end uses a fixed NBR elastomer bumper for end-of-stroke deceleration, and the built-in magnet (-S) tracks position via reed or solid-state switches in the body grooves.
Airtac ACQD Double Acting Compact Cylinder ACQD40X50S Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD40X50S |
|---|---|
| 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 ACQD40X50S
| 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 ACQD40X50S Is Used
Twin-Guided Pusher
Drives a wide packaging flap-folding blade in a carton erecting machine, using the dual rods to keep the platen perfectly parallel without an external guide rail.
Symmetric Transfer Unit
Powers a dual-sided pick-and-place arm on a PCB handling line, utilizing the equal 527.8N push and pull force to accelerate and decelerate loads uniformly in both travel directions.
Dual-Station Actuation
Indexes two adjacent test fixtures simultaneously on an automotive sensor assembly station, with the secondary rod end carrying a physical trigger flag for a solid-state proximity switch.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD40X50S the Right Cylinder?
For 0.5 MPa operation, this 40mm bore provides 527.8N both ways; stepping down to the 32mm bore drops the equal force to 301.6N, while the 50mm bore raises it to 824.6N. Choose this double-rod format when you need symmetric thrust and built-in torsion resistance; a single-rod ACQ fits better if you only need unidirectional thrust, and a guided TACQ is preferable for heavy lateral loads. Specify the PT1/8 port, M8x1.25 female rod thread, and 50mm 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 ACQD40X50S FAQ
The ACQD40X50S operates between 0.15-1.0 MPa and generates an equal push and pull force of 527.8N at 0.5 MPa and 738.9N at 0.7 MPa, with a maximum of 108kgf at 1.0 MPa. Push and pull forces are identical because the twin rods create the same annular piston area in both chambers. The maximum standard stroke available for this 40mm bore is 100mm.
No, a plain ACQD does not hold position on air loss; the rod drifts and an external rod lock or pilot check valve is required for fail-safe holding. For end-of-stroke deceleration, it relies on fixed NBR elastomer bumpers at both ends rather than adjustable air cushions, so an external shock absorber is recommended for high-speed or high-energy loads.
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