Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25B
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25B 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 ASQ50X25B
The AirTAC ASQ50X25B is a JIS compact, single-acting push cylinder with a 50 mm bore and 25 mm stroke. Feeding air to its single PT1/4 port extends the rod, while an internal spring handles retraction. This design requires only one air line, cutting valve complexity. The piston rod is 20 mm thick and features a male M18x1.5 thread end (-B option) for direct load coupling.
At 0.5 MPa, the theoretical push force is 981.8 N (1374.4 N at 0.7 MPa). Because an internal return spring consumes energy, these are theoretical figures before spring loss; verify the net output via the official datasheet. The cylinder operates between 0.2 and 1.0 MPa, needing at least 0.2 MPa to overcome the spring. End-of-travel stopping relies on a fixed NBR elastomer bumper, not an adjustable air cushion.
Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25B Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25B |
|---|---|
| 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 ASQ50X25B
| 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 ASQ50X25B Is Used
CNC Fixture Clamping
Holds heavy cast iron blocks firmly against a milling machine vise jaw using the 981.8 N theoretical push force before the return spring engages.
Carton Sealing Ejection
Pushes filled corrugated cardboard boxes smoothly onto the downstream roller conveyor, relying on the internal spring to safely retract the 20 mm rod.
Press Pin Locating
Inserts steel alignment dowels into automotive transmission housings, using the fixed NBR bumper to absorb the 25 mm end-of-stroke impact.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25B the Right Cylinder?
For sizing, the adjacent ASQ40 bore yields 628.3 N theoretical push at 0.5 MPa, while the larger ASQ63 provides 1558.6 N. This ASQ50X25B is ideal if 981.8 N fits your requirement. The 25 mm stroke is within the 30 mm maximum limit for this bore. If your application requires longer travel, consider a double-acting ACQ cylinder instead. When ordering, confirm the 50 mm bore, 25 mm stroke, male M18x1.5 rod thread (-B), and note this unit ships without a magnet (-S omitted).
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 ASQ50X25B FAQ
The theoretical push force is 981.8 N at 0.5 MPa and 1374.4 N at 0.7 MPa. These are theoretical figures before the return spring lowers the net output; confirm the exact net force from the datasheet. Being single-acting, it requires a minimum operating pressure of 0.2 MPa to overcome the internal spring. The maximum standard stroke for this 50 mm bore is 30 mm.
End-of-travel deceleration uses a fixed NBR elastomer bumper inside the compact body, not an adjustable air cushion. If air pressure drops or is lost completely, the internal spring provides a fail-safe return, automatically retracting the rod back to its home position.
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