Airtac ACQD Double Acting Compact Cylinder ACQD50X90SB
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD50X90SB is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø50mm bore and 90mm 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
- Stroke90 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 ACQD50X90SB
The AirTAC ACQD50X90SB is a double-acting JIS compact cylinder featuring twin rods that exit both ends of the riveted body. 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 824.6N at 0.5MPa and 1154.5N at 0.7MPa, enabling symmetric cycle cycles without force imbalance.
The dual-rod architecture inherently resists rotation and provides an extended guide length, allowing you to carry a small tool platform without adding a separate anti-rotation guide. This 50mm bore unit uses a PT1/4 port and a 20mm piston rod. The -B suffix provides a male M18x1.5 rod-end thread for direct load coupling. It includes fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration, and the -S magnet supports reed or solid-state switches in the body grooves.
Airtac ACQD Double Acting Compact Cylinder ACQD50X90SB Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD50X90SB |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 90 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 ACQD50X90SB
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×90 | 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 ACQD50X90SB Is Used
Symmetric Transfer Pusher
Drives a dual-sided pusher arm in packaging machinery where equal 824.6N push and pull forces prevent uneven tool wear during product transfer.
Twin-Guided Stacking Platform
Lifts and lowers a small pallet stacking platform in electronics assembly, relying on the twin 20mm rods to prevent torsion without an external guide rail.
Dual-Station Actuation
Actuates a secondary sensor flag or clamp from the rear rod end on an CNC lathe loader, while the front rod drives the main gripping action simultaneously.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD50X90SB the Right Cylinder?
Select this 90mm stroke model when your application requires 824.6N of thrust in both directions within a compact envelope. If you need slightly less force, the 40mm bore provides 527.8N at 0.5MPa; if you need more, the 63mm bore yields 1401.5N. Choose a single-rod ACQ if equal force is not required and space is tighter. For pure vertical lifting, remember a plain ACQD does not hold position on air loss—add an external pilot check valve or rod lock for fail-safe load holding. Confirm the male M18x1.5 thread and PT1/4 port match your plumbing and mounting hardware.
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 ACQD50X90SB FAQ
It delivers equal push and pull forces of 824.6N at 0.5MPa and 1154.5N at 0.7MPa, with a maximum load capacity of 168kgf at 1.0MPa. The push and pull forces are identical because the double-rod design creates the same annular area in both chambers. The standard stroke limit for this 50mm bore is 100mm.
No, a plain ACQD does not hold position on air loss or when a valve is centered; the rod will drift. The fixed NBR elastomer bumpers only decelerate the piston near the stroke ends and do not act as a brake. For fail-safe vertical load holding, you must install an external pilot-operated check valve or a separate pneumatic rod lock.
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