Airtac ACQD Double Acting Compact Cylinder ACQD50X250S
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD50X250S is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø50mm 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.
- BoreØ50 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 ACQD50X250S
The AirTAC ACQD50X250S 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 exactly equal push and pull forces of 824.6N at 0.5MPa and 1154.5N at 0.7MPa. This symmetry is ideal for cycles requiring consistent bi-directional power. The integrated magnet (-S) supports reed or solid-state sensing.
This long-stroke made-to-order variant provides a 250mm travel distance, exceeding the 100mm standard maximum for this 50mm bore. It features a Ø20mm rod, PT1/4 port, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration. The dual rods inherently resist rotation and double the guiding length, enabling a tool platform to traverse the extended length without twisting or requiring a separate external anti-rotation guide.
Airtac ACQD Double Acting Compact Cylinder ACQD50X250S Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD50X250S |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø50 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 (Ø50mm — equal both ways)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 825 N | 825 N |
| 0.7 MPa | 1155 N | 1155 N |
| Max (@1.0 MPa) | 168 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 ACQD50X250S
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 50 | 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 ACQD50X250S Is Used
Symmetric Transfer Conveyor
Drives a dual-sided pusher on a packaging conveyor, utilizing the equal push/pull force to smoothly transfer goods in both directions without asymmetric acceleration.
Twin-Guided CNC Loader
Loads raw billets into a CNC lathe, where the twin rods prevent rotational drift over the 250mm travel, eliminating the need for an external guide rail.
Dual-Station Actuation
Powers a dual-station clamping fixture on an automated assembly line, using the second rod end to drive a secondary mechanical flag or synchronized load.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD50X250S the Right Cylinder?
Selecting this 50mm bore involves sizing against adjacent options: the 40mm bore yields 527.8N, while the 63mm bore provides 1401.5N at 0.5MPa. This 250mm stroke is a nonstandard long-stroke variant exceeding the 100mm standard max. If your application only needs single-direction pushing or lacks space for a second protruding rod, a single-rod ACQ cylinder is a better fit. For heavy loads at this long 250mm stroke, a guided TACQ cylinder might offer superior lateral load support. Confirm the PT1/4 port, M10x1.5 female rod thread, and magnet requirements 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 ACQD50X250S FAQ
The push and pull forces are equal at 824.6N @0.5MPa and 1154.5N @0.7MPa, with a maximum force of 168kgf @1.0MPa. Push equals pull because the double-rod design creates equal annular areas on both sides. The 250mm stroke is a long-stroke variant, exceeding the 100mm standard maximum for this bore.
The twin rods resist rotation and provide extended guiding. It uses fixed NBR elastomer bumpers at both ends for deceleration, not adjustable air cushions. A plain ACQD does not hold position on air loss; for fail-safe holding, an external rod lock or pilot-operated check valve is required.
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