
The AirTAC ACQD Double Acting Compact Cylinder ACQD20X70 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 ACQD20X70 is a double-acting JIS compact cylinder featuring twin rods extending from both body ends. Because a piston rod occupies each chamber, the effective annular area is identical in both directions, delivering equal push and pull forces of 117.8N at 0.5MPa and 164.9N at 0.7MPa. This symmetry is ideal for applications requiring consistent bi-directional thrust without the force disparity found in single-rod units.
The dual-rod architecture inherently resists rotation and provides a longer guide length, allowing it to carry a small tool platform without needing a separate external anti-rotation guide. It features a fixed TPU elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The second rod end can drive a sensor flag or a secondary load, and the body retains magnetic-switch grooves for adding reed or solid-state sensors, though this specific SKU ships without a magnet.
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD20X70 |
|---|---|
| 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 dual-sided pick-and-place head in electronics assembly, utilizing the equal 117.8N push and pull forces at 0.5MPa to ensure consistent actuation speeds in both travel directions.
Carries a small machining fixture on a secondary machining station, relying on the two Ø10mm rods to prevent torsional deflection without adding a bulky external guide rail.
Powers a sorting diverter on a packaging conveyor where the second rod end directly mounts a mechanical flag to trigger an external reed or solid-state sensor.
When sizing this 20mm bore actuator, stepping down to the 16mm bore yields 75.4N at 0.5MPa, while stepping up to the 25mm bore provides 188.9N at 0.5MPa. If your mechanism only requires thrust in one direction and asymmetric force is acceptable, a single-rod ACQ cylinder may suffice. If your load demands higher torsional rigidity or precision guidance over a longer span, a guided TACQ cylinder is the better choice. To order this model, confirm the 70mm stroke, the standard M5x0.8 port thread, and the default female M5x0.8 rod-end thread.
Quick checklist
The ACQD20X70 delivers an equal push and pull force of 117.8N at 0.5MPa and 164.9N at 0.7MPa, with a maximum 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 maximum standard stroke available for this 20mm bore is 100mm.
It uses a fixed TPU elastomer bumper at each end to absorb shock, meaning there is no adjustable air cushion. For high-energy impacts, an external shock absorber is recommended. Additionally, a plain ACQD does not hold its load if air pressure is lost; for fail-safe positioning, you must install an external rod lock or pilot-operated check valve.
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