Airtac ACQD Double Acting Compact Cylinder ACQD50X40S
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD50X40S is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø50mm bore and 40mm 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
- Stroke40 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 ACQD50X40S
The AirTAC ACQD50X40S is a double-acting JIS compact cylinder featuring a twin-rod design where a Ø20 mm piston rod protrudes from both ends. Because a rod occupies both internal chambers, the effective annular area is identical in each direction, yielding equal push and pull forces of 824.6 N at 0.5 MPa and 1154.5 N at 0.7 MPa. This symmetry is ideal for applications needing consistent force in both travel directions.
The dual rods resist rotation and extend the guide length, allowing you to mount a tooling platform directly without needing an external anti-rotation guide. The second rod end can drive a sensor flag or a secondary load. Built with a C-clip riveted body, it includes fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions. The -S option provides a piston magnet compatible with reed or solid-state switches.
Airtac ACQD Double Acting Compact Cylinder ACQD50X40S Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD50X40S |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 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 ACQD50X40S
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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 ACQD50X40S Is Used
Symmetric Transfer
Drives a dual-sided pick-and-place head in electronics assembly, using the equal push and pull thrust to maintain perfectly balanced part handoff.
Twin-Guided Pusher
Pushes heavy cartons on a packaging line where the twin rods prevent platform yaw without adding a separate external guide rail.
Dual-Station Actuation
Actuates two clamps simultaneously on a machining fixture, using the second protruding rod end to trigger a solid-state position sensor.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD50X40S the Right Cylinder?
Selecting this 50 mm bore model with a 40 mm stroke provides 824.6 N of force both ways at 0.5 MPa. If your load is lighter, the 40 mm bore generates 527.8 N, whereas heavier demands up to 1401.5 N require the 63 mm size. Choose this ACQD variant when equal push/pull cycles and twin-rod anti-rotation are required; a single-rod ACQ or a fully guided TACQ fits better if you only need unidirectional thrust. Confirm the PT1/4 port, M10x1.5 female rod thread, and the -S magnet option 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 ACQD50X40S FAQ
The push and pull forces are equal at 824.6 N @0.5 MPa and 1154.5 N @0.7 MPa, with a maximum capacity of 168 kgf @1.0 MPa. This equality occurs because the double-rod design means both chambers have the same annular piston area. The maximum standard stroke available for this 50 mm bore is 100 mm.
The twin rods resist rotation and provide a longer guide length, eliminating the need for an external anti-rotation guide. The -S magnet option allows tracking with reed or electronic switches. For end-of-stroke impact, it uses fixed NBR elastomer bumpers rather than adjustable air cushions.
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