
The AirTAC ACQD Double Acting Compact Cylinder ACQD20X70B is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø20mm 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.
The AirTAC ACQD20X70B is a double-acting JIS compact cylinder featuring twin rods that exit both ends of its riveted C-clip body. Because a rod occupies each chamber, the annular area is identical in both directions, giving perfectly equal push and pull forces of 117.8N at 0.5MPa and 164.9N at 0.7MPa. This symmetric action enables highly stable, bidirectional operation without force imbalance.
The dual 10mm 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 specific variant includes male M8x1.25 rod-end threads for direct load coupling, fixed TPU elastomer bumpers at each end for end-of-stroke deceleration, and integrated sensor grooves. Note that this non-magnetized version lacks the internal ring magnet, so position sensing is not possible without modification.
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD20X70B |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø20 mm |
| Stroke | 70 mm |
| Acting type | Double acting, double rod |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 118 N | 118 N |
| 0.7 MPa | 165 N | 165 N |
| Max (@1.0 MPa) | 24 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.
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 20 | 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).
Drives a synchronized pick-and-place pusher in electronics assembly, using the dual rods to prevent chassis twist during rapid retraction.
Powers a dual-sided transfer jig on packaging lines, leveraging equal push and pull forces to maintain balanced cycle timing.
Actuates two adjacent test stations simultaneously from a single body, using the second protruding rod end to drive a secondary flag.
Providing 117.8N of force at 0.5MPa, this 20mm bore unit sits between the 16mm variant (75.4N) and the 25mm variant (188.9N). Choose this model when your application requires precise symmetric force within a 70mm stroke, well under the 100mm maximum for this bore. If your layout only needs force in one direction, a single-rod ACQ offers a more compact footprint, while a guided TACQ is preferable for heavy lateral loads. When ordering, confirm the male M8x1.25 rod threads, M5x0.8 port size, and that a separate external rod lock is necessary if fail-safe load holding is required upon air loss.
Quick checklist
It delivers an equal push and pull force of 117.8N at 0.5MPa and 164.9N at 0.7MPa, with a maximum holding force of 24kgf at 1.0MPa. Push and pull forces are identical because the double-rod design creates the same annular area in both chambers. The 70mm stroke is well within the 100mm maximum standard stroke limit for this 20mm bore.
It uses fixed TPU elastomer bumpers at both ends for end-of-stroke deceleration, which are not adjustable. For high-energy cycles, you should add an external shock absorber. Additionally, a plain ACQD does not hold its load if air pressure is lost; you must install an external rod lock or pilot-operated check valve for fail-safe positioning.
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