Airtac ACQD Double Acting Compact Cylinder ACQD80X250S
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD80X250S is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø80mm 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.
- BoreØ80 mm
- Stroke250 mm
- Port sizePT3/8
- Acting typeDouble acting, double rod
- Rod threadM16×2.0 (F) / M22×1.5 (B)
- CushionBumper (both ends)
About the Airtac ACQD Double Acting Compact Cylinder ACQD80X250S
The AirTAC ACQD80X250S is a double-acting, twin-rod JIS compact cylinder engineered for applications requiring equal force in both directions. Because a Ø25mm piston rod protrudes from both ends, the effective annular area remains identical on extension and retraction, yielding a consistent 2267.8N force at 0.5MPa and 3175N at 0.7MPa. The dual-rod architecture inherently resists torsion, extending the guide length to support tooling platforms without requiring external anti-rotation hardware.
This made-to-order variant features an extended 250mm stroke, exceeding the 100mm standard maximum for this bore size. It incorporates fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions. Equipped with a piston magnet (-S), the cylinder operates with reed or solid-state electronic switches via its integrated mounting grooves. The body utilizes a compact C-clip construction with PT3/8 ports and a female M16x2.0 rod-end thread.
Airtac ACQD Double Acting Compact Cylinder ACQD80X250S Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD80X250S |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 250 mm |
| Acting type | Double acting, double rod |
| Port size | PT3/8 |
| Rod end thread | M16×2.0 female / M22×1.5 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 (Ø80mm — equal both ways)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | 3175 N |
| Max (@1.0 MPa) | 463 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 ACQD80X250S
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 80 | 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 ACQD80X250S Is Used
Symmetric Transfer Conveyor
Drives a dual-station transfer carriage on packaging machinery, using the second rod end to simultaneously push a secondary diverter arm with identical 3175N force at 0.7MPa.
Twin-Guided Forming Press
Actuates a small forming die in metal fabrication where the twin rods prevent platform rotation under high eccentric loads, maintaining strict parallelism throughout the 250mm travel.
Dual-Side Mold Ejector
Ejects plastic parts from a mold assembly on an injection molding line, utilizing the opposing rod end to drive a synchronized stripper plate without adding a separate external guide.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD80X250S the Right Cylinder?
When sizing this actuator, consider the neighboring bores: the Ø63mm variant provides 1401.5N at 0.5MPa, while the Ø100mm option yields 3524.8N at 0.5MPa. This Ø80mm model is optimal when you need 2267.8N of bidirectional force across a 250mm span. If your mechanism only requires single-sided actuation, the standard ACQ series provides a smaller footprint. For heavy radial loads, a guided TACQ cylinder might better prevent binding over this long stroke. To order, confirm the 80mm bore, 250mm stroke, -S magnet option, and the default female M16x2.0 rod thread.
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 ACQD80X250S FAQ
This model delivers an equal push and pull force of 2267.8N at 0.5MPa and 3175N at 0.7MPa, with a maximum holding capability of 463kgf at 1.0MPa. The push and pull forces are identical because the double-rod design creates the same annular area in both chambers. The 250mm stroke is a long-stroke, made-to-order variant exceeding the 100mm standard maximum for this 80mm bore.
It uses fixed NBR elastomer bumpers at both ends to decelerate the piston near stroke end, rather than adjustable air cushions. For high-speed or high-energy cycles, you should add an external shock absorber. A plain ACQ-type cylinder 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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