Airtac ACQD Double Acting Compact Cylinder ACQD40X40S
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD40X40S is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø40mm 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.
- BoreØ40 mm
- Stroke40 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionBumper (both ends)
About the Airtac ACQD Double Acting Compact Cylinder ACQD40X40S
The AirTAC ACQD40X40S is a double-acting JIS compact cylinder where a Ø16mm piston rod protrudes from both ends. Because a rod occupies both internal chambers, the effective annular area is identical in each direction. This yields perfectly equal push and pull forces of 527.8N at 0.5MPa and 738.9N at 0.7MPa, enabling symmetrically balanced cycles without differential force drop.
The twin rods inherently resist rotation and provide a longer guide length, allowing you to mount a small tool platform directly without needing a separate external anti-rotation guide. The second rod end can simultaneously drive a sensor flag or a secondary load. Built with a compact riveted body, it features fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration, and the included -S magnet works seamlessly with reed or solid-state switches via the body's magnetic grooves.
Airtac ACQD Double Acting Compact Cylinder ACQD40X40S Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD40X40S |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 (Ø40mm — equal both ways)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | 739 N |
| Max (@1.0 MPa) | 108 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 ACQD40X40S
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 40 | 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 ACQD40X40S Is Used
Twin-Guided Pusher
Drives a precision machining fixture pusher bar, using the dual rods to maintain strict parallelism and prevent jaw rotation during clamping.
Symmetric Transfer Unit
Powers a packaging line transfer arm where the equal annular push/pull area ensures identical acceleration and deceleration profiles in both directions.
Dual-Station Actuation
Actuates a dual-station electronics testing platform, using the second rod end to trigger a physical reset flag on the opposite side.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD40X40S the Right Cylinder?
For 0.5MPa operations, this 40mm bore delivers 527.8N of thrust both ways; stepping down to the 32mm bore drops the force to 301.6N, while stepping up to the 50mm bore increases it to 824.6N. Choose this double-rod ACQD model when equal bidirectional force and anti-rotation guiding are required. If your application only needs unidirectional push force, a standard single-rod ACQ cylinder is simpler. If load holding upon air loss is mandatory, note that this cylinder drifts without air, so an external rod lock or pilot check valve must be added. Confirm the PT1/8 port and the default female M8x1.25 rod-end thread 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 ACQD40X40S FAQ
The push and pull forces are identical because the rod occupies both chambers. It generates 527.8N at 0.5MPa and 738.9N at 0.7MPa, with a maximum load of 108kgf at 1.0MPa. The maximum standard stroke available for the 40mm bore is 100mm.
It uses fixed NBR elastomer bumpers at both ends to absorb end-of-stroke impact, which are not adjustable. It does not feature a locking mechanism and will drift if air pressure is lost; for fail-safe load holding, you must install an external rod lock or pilot check valve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQD Compact Cylinders
Request a Quote for Airtac ACQD Double Acting Compact Cylinder ACQD40X40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.