Airtac ACQD Double Acting Compact Cylinder ACQD80X40SB
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD80X40SB is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø80mm 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.
- BoreØ80 mm
- Stroke40 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 ACQD80X40SB
The AirTAC ACQD80X40SB is a double-acting JIS compact cylinder featuring twin Ø25 mm rods exiting from both ends. Because a rod occupies each working chamber, the annular area is identical in both directions, yielding perfectly equal push and pull forces of 2267.8 N at 0.5 MPa and 3175 N at 0.7 MPa. This symmetric thrust is essential for applications requiring consistent bi-directional cycling. The -SB configuration equips the piston with a magnet for position sensing and provides male M22x1.5 rod-end threads for direct load mounting.
Twin rods drastically increase guide length and resist torsional deflection, eliminating the need for an external anti-rotation guide in many setups. The second protruding rod end can drive a sensor flag or synchronize a secondary mechanism. Deceleration relies on fixed NBR elastomer bumpers at both stroke ends rather than adjustable air cushions. AirTAC magnetic reed or solid-state electronic switches drop directly into the body grooves, while a standard PT3/8 port handles pneumatic supply.
Airtac ACQD Double Acting Compact Cylinder ACQD80X40SB Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD80X40SB |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 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 ACQD80X40SB
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 80 | 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 ACQD80X40SB Is Used
Twin-Guided Part Pusher
Pushes heavy castings off a machining center conveyor using both rod ends to maintain precise alignment without twisting under asymmetrical loads.
Symmetric Transfer Mechanism
Drives a dual-station transfer clamp on packaging machinery where the equal 3175 N push and pull forces ensure identical clamping pressure in both directions.
Secondary Actuation Station
Uses the second male-threaded M22x1.5 rod end to trigger a secondary valve or reject arm on an assembly line while the primary side positions a workpiece.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD80X40SB the Right Cylinder?
When sizing this 80mm bore, note it yields 2267.8 N both ways at 0.5 MPa; dropping to a 63mm bore reduces this to 1401.5 N, whereas stepping up to 100mm provides 3524.8 N. If your layout only requires standard single-direction thrust without rotational stability, a single-rod ACQ series is more compact. For heavy lateral loads exceeding the twin-rod guide capacity, a TACQ guided cylinder is recommended. To order, specify the ACQD80X40SB, your desired PT3/8 porting, and compatible electronic or reed switches. Remember that a standard cylinder drifts upon air loss; if fail-safe holding is critical, integrate an external rod lock or pilot check valve.
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 ACQD80X40SB FAQ
The ACQD80X40SB provides equal push and pull forces of 2267.8 N at 0.5 MPa and 3175 N at 0.7 MPa, with a maximum capacity of 463 kgf at 1.0 MPa. Push and pull are equal because the twin rods create the same annular piston area in both chambers. The standard stroke maxes out at 100mm for this 80mm bore, and the male rod-end thread is M22x1.5.
Instead of adjustable air cushions, it uses fixed NBR elastomer bumpers at both ends to absorb impact near stroke completion; for high-speed loads, external shock absorbers are advised. The built-in -S magnet works with both reed and solid-state electronic switches fitted into the cylinder's grooves, and the second rod end can be used to mount a sensor flag.
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