Airtac ACQD Double Acting Compact Cylinder ACQD63X250SB
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD63X250SB is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø63mm bore and 250mm 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.
- BoreØ63 mm
- Stroke250 mm
- Port sizePT1/4
- Acting typeDouble acting, double rod
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionBumper (both ends)
About the Airtac ACQD Double Acting Compact Cylinder ACQD63X250SB
The AirTAC ACQD63X250SB is a double-acting JIS compact cylinder featuring a twin-rod design where a piston extends from both body ends. Because a rod occupies each chamber, the annular area is identical in both directions, yielding perfectly equal push and pull forces of 1401.5N at 0.5MPa and 1962.2N at 0.7MPa. This specific 250mm configuration is a long-stroke, made-to-order variant exceeding the 100mm standard maximum for this bore.
The dual rods resist torsion and lengthen the guide bearing, allowing a tool platform to travel accurately without needing an external anti-rotation guide. This unit includes a male M18x1.5 rod end for direct load coupling and a built-in magnet (-S) for position sensing. Deceleration relies on fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. Note that a plain compact cylinder drifts if air pressure is lost; use an external rod lock or pilot check valve for fail-safe load holding.
Airtac ACQD Double Acting Compact Cylinder ACQD63X250SB Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD63X250SB |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 mm |
| Acting type | Double acting, double rod |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 (Ø63mm — equal both ways)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 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 ACQD63X250SB
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 ACQD63X250SB Is Used
Symmetric Transfer Unit
Drives a dual-sided product diverter on packaging machinery where equal 1962.2N push and pull forces prevent asymmetric acceleration during rapid cycle reversals.
Twin-Guided Pusher
Transfers heavy workpieces along a machining center conveyor, utilizing the twin rods to resist torsional deflection without adding an external linear guide.
Dual-Station Actuation
Powers a long 250mm indexing platform on an electronics assembly line, using the second rod end to mount a sensor flag for precise end-of-travel detection.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD63X250SB the Right Cylinder?
For sizing context, the neighboring Ø50 bore provides 824.6N and the Ø80 bore provides 2267.8N at 0.5MPa, whereas this Ø63 delivers 1401.5N both ways. If your application only requires force in one direction, a standard single-rod ACQ might suffice. If heavy lateral loads are present alongside the long 250mm stroke, a guided TACQ cylinder could be a better structural fit. When ordering, confirm the PT1/4 port size, the M18x1.5 male rod thread, and the requirement for the extended 250mm travel.
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 ACQD63X250SB FAQ
The push and pull forces are equal at 1401.5N @0.5MPa and 1962.2N @0.7MPa, with a maximum force of 286kgf @1.0MPa. Push equals pull because the twin rods create identical annular areas on both sides. The 250mm stroke is a long-stroke made-to-order variant, exceeding the 100mm standard maximum for this 63mm bore.
The twin-rod design inherently resists rotation and extends guide length. End-of-stroke deceleration uses fixed NBR elastomer bumpers, not adjustable air cushions, so external shock absorbers may be needed for high-energy loads. The -S option provides a piston magnet compatible with reed or electronic solid-state switches.
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