Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25SB
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25SB is a genuine single-acting COMPACT (JIS) cylinder (single acting, push type) with a Ø50mm bore and 25mm stroke. Air pushes the rod and an internal spring performs the opposite stroke, so one solenoid line drives the motion — ideal for short-stroke clamping and ejection in tight spaces.
- BoreØ50 mm
- Stroke25 mm
- Port sizePT1/4
- Acting typeSingle acting, push type
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionBumper
About the Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25SB
The AirTAC ASQ50X25SB is a single-acting push-type JIS compact cylinder equipped with a 50mm bore and a 25mm stroke. Feeding compressed air into its single PT1/4 port extends the Ø20mm rod, while an internal mechanical spring handles retraction. This design requires only one air line, cutting valve complexity and plumbing hardware. The unit delivers a theoretical push force of 981.8N at 0.5MPa (1374.4N at 0.7MPa) before the return spring's resistance is factored in; verify the exact net output via the official datasheet for your specific load.
This specific configuration includes the -S magnet and -B male-thread options. The integrated piston magnet allows position tracking using either reed or electronic solid-state switches mounted in the body grooves. The -B option provides a male M18x1.5 rod-end thread for direct mechanical coupling. To manage end-of-stroke kinetic energy, the cylinder relies on a fixed NBR elastomer bumper rather than an adjustable air cushion. If your cycle rates push the 50-500mm/s speed ceiling, consider adding an external shock absorber to protect the assembly.
Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25SB Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25SB |
|---|---|
| Series | ASQ JIS compact single-acting cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 mm |
| Acting type | Single acting, push type |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 500 mm/s |
| Cushion | Bumper |
| Max standard stroke | Up to 30 mm |
Specifications follow the official AirTAC ACQ-family datasheet. Single-acting types start at 0.2 MPa (the spring must be overcome). Confirm against the product label before installation.
Theoretical Output Force (Ø50mm, Push)
| Pressure | Push force (before spring) |
|---|---|
| 0.5 MPa | 982 N |
| 0.7 MPa | 1374 N |
These are theoretical air-side forces; the return-spring force reduces the NET usable output. Single-acting push only — the spring performs the opposite stroke. Confirm the net figure from the datasheet and size with a safety margin.
Model Code: Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25SB
| ASQ | JIS compact single acting, push type cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | Stroke length in mm (single-acting max 30 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). ASQ pushes out / spring returns; ATQ pulls in / spring extends. Related: ACQ (double acting), ACQD (double rod), ACQJ (adjustable stroke).
Where the Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25SB Is Used
Bending Fixture Clamp
Holds heavy sheet metal securely in place within an automotive bending fixture using the 981.8N theoretical push before the press cycle begins.
Pallet Diverter
Pushes loaded pallets onto a secondary packaging line branch, relying on the spring-return mechanism to clear the lane during upstream downtime.
Stamping Ejector
Knocks finished stamped parts out of a die cavity, utilizing the fixed NBR bumper to absorb the impact of the ejection stroke.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25SB the Right Cylinder?
For sizing, a 50mm bore offers 981.8N of theoretical push at 0.5MPa. If your application requires less force, stepping down to a 40mm bore yields 628.3N, whereas moving up to a 63mm bore provides 1558.6N. Since this is a single-acting design, the stroke is capped at 30mm; if your machine needs longer travel, select the double-acting ACQ series instead. When ordering, confirm the 50mm bore, 25mm stroke, the -S magnet for sensing, and the -B male M18x1.5 thread.
Quick checklist
- ✓ Net push force (after spring) at your pressure
- ✓ Stroke ≤ 30 mm (single-acting limit)
- ✓ Single air line saves a valve/port
- ✓ 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 0.2 – 1.0 MPa operating pressure.
- check Remember the spring performs the return stroke.
- check Avoid side load on the short piston rod.
- check Handle the C-clip carefully; seat it fully in its groove.
- check Installation by qualified personnel per AirTAC docs.
Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25SB FAQ
It provides a theoretical push of 981.8N at 0.5MPa and 1374.4N at 0.7MPa before the return spring lowers the net output. Operating pressure is 0.2-1.0 MPa (0.2 MPa minimum is required to overcome the spring), and the stroke is 25mm (max standard 30mm).
If air pressure drops or is exhausted, the internal spring automatically retracts the rod to its resting position. At the end of the extension stroke, a fixed NBR elastomer bumper absorbs kinetic energy; it is not an adjustable air cushion.
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