Airtac ACQD Double Acting Compact Cylinder ACQD50X125SB
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD50X125SB is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø50mm bore and 125mm 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
- Stroke125 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 ACQD50X125SB
The ACQD50X125SB is a double-acting JIS compact cylinder featuring a 50mm bore and a 125mm stroke. Because twin piston rods exit the body on both sides, the annular area remains identical in either travel direction. This yields perfectly balanced thrust, generating 824.6N at 0.5 MPa and 1154.5N at 0.7 MPa for both extension and retraction. The extended 125mm length is a made-to-order long-stroke variant, exceeding the 100mm standard maximum for this bore size.
Equipped with an S magnet and B male rod threads, this unit integrates seamlessly with sensing electronics and mounts tooling directly via its M18x1.5 ends. The integrated NBR elastomer bumpers absorb impact energy at stroke extremes without requiring adjustable cushions. Furthermore, the dual-rod architecture provides inherent anti-rotation support and an extended guide length, eliminating the need for a separate external guide in many compact handling setups.
Airtac ACQD Double Acting Compact Cylinder ACQD50X125SB Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD50X125SB |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 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 ACQD50X125SB
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | 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 ACQD50X125SB Is Used
Symmetric Transfer Shuttle
Drives a dual-sided packaging shuttle where matching push and pull forces prevent jerky movements during rapid direction reversals on a 125mm slide.
Twin-Guided Tooling Platform
Carries a CNC loading head without an external guide, relying on the two protruding rods to resist torsional stress during part clamping.
Dual-Station Actuation
Uses the second rod end to trigger a mechanical flag on a bottling line, sequencing a diverter gate while the primary side pushes product.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD50X125SB the Right Cylinder?
Choosing this 50mm bore involves evaluating neighboring sizes against your thrust requirements. Dropping down to a 40mm bore reduces the equal bidirectional force to 527.8N at 0.5 MPa, while stepping up to 63mm increases it to 1401.5N. If your application only requires unidirectional thrust, a single-rod ACQ cylinder provides greater forward power. However, for multi-axis pick-and-place units demanding strict rotational stability, this twin-rod configuration is optimal. Confirm your order specifies the PT1/4 port, the M18x1.5 male threads, and the 125mm extended stroke requirement.
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 ACQD50X125SB FAQ
It delivers equal push and pull forces of 824.6N at 0.5 MPa and 1154.5N at 0.7 MPa, with a maximum thrust of 168kgf at 1.0 MPa. Push equals pull because the twin rods create identical annular areas on both sides. The 125mm stroke is a long-stroke variant exceeding the 100mm standard maximum for a 50mm bore. Operating pressure ranges from 0.15-1.0 MPa.
Fixed NBR elastomer bumpers at both ends absorb end-of-stroke impact and cannot be adjusted; for high-energy cycles, use an external shock absorber. The S option includes a piston magnet compatible with both reed and solid-state electronic switches. The B option provides M18x1.5 male threads on both rod ends for direct load coupling.
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