
The AirTAC ACQD Double Acting Compact Cylinder ACQD20X70S 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 ACQD20X70S is a double-acting JIS compact cylinder featuring twin Ø10mm rods exiting both ends. Because a rod occupies each chamber, the effective annular area is identical in both directions, yielding equal push and pull forces of 117.8N at 0.5MPa and 164.9N at 0.7MPa. The -S suffix denotes a built-in piston magnet compatible with reed or solid-state electronic switches.
Its dual-rod architecture inherently resists torsion and extends guide length, allowing a small tool platform to be carried without needing a separate external anti-rotation guide. Deceleration is handled by fixed TPU elastomer bumpers at both ends rather than adjustable air cushions. Operating pressure spans 0.15-1.0MPa, and the second protruding rod end can conveniently drive a sensor flag or secondary load.
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD20X70S |
|---|---|
| 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 pusher plate in electronics assembly, using the equal bidirectional 117.8N force to push and retract parts with identical cycle timing.
Operates a small stamping head in packaging machinery where the twin rods prevent torsion and eliminate the need for a separate external guide rail.
Actuates a secondary sensor flag or second load on a textile loom using the second rod end, while the primary rod performs the main work cycle.
When sizing this 20mm bore, stepping down to a 12mm bore yields 42.4N, while stepping up to a 25mm bore provides 188.9N at 0.5MPa. If your application tolerates unequal push and pull forces, the single-rod ACQ series offers a more compact footprint. For tasks demanding extreme lateral load capacity, a guided TACQ cylinder might be a better fit. To order, confirm the 70mm stroke, M5x0.8 port, female M5x0.8 rod-end thread, and the -S magnet option.
Quick checklist
It delivers equal push and pull forces of 117.8N at 0.5MPa and 164.9N at 0.7MPa, with a maximum capacity of 24kgf at 1.0MPa. Push equals pull because the twin rods create identical annular areas in both chambers. The maximum standard stroke for a 20mm bore is 100mm.
It uses fixed TPU elastomer bumpers at both ends for impact absorption, not adjustable air cushions. A plain ACQD does not hold its load if air pressure is lost; for fail-safe positioning, an external rod lock or pilot-operated check valve is required.
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