Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25S
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25S 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 ASQ50X25S
The AirTAC ASQ50X25S is a single-acting push-type JIS compact cylinder. Supplying air to the single PT1/4 port extends the Ø20 mm rod, while an internal mechanical spring handles retraction. This design simplifies plumbing by requiring only one air line. Theoretical push force is 981.8 N at 0.5 MPa and 1374.4 N at 0.7 MPa before spring resistance; verify the net output from the datasheet.
This 50 mm bore unit includes the -S magnet option for position sensing via reed or solid-state switches. It features a fixed NBR elastomer bumper for end-of-stroke damping rather than an adjustable air cushion. The 25 mm stroke stays within the 30 mm maximum limit for this bore size, and the rod end has an M10x1.5 female thread. Operating pressure spans 0.2-1.0 MPa to overcome the return spring.
Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25S Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25S |
|---|---|
| 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 ASQ50X25S
| 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 ASQ50X25S Is Used
Stamping Ejector
Pushes finished metal blanks out of a progressive die press using 981.8 N theoretical force at 0.5 MPa.
Carton Flap Folder
Extends to fold heavy corrugated cardboard flaps, with the internal spring ensuring immediate retraction.
Part Hold-Down
Secures heavy wooden workpieces against a routing table during CNC machining operations.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ50X25S the Right Cylinder?
For lower force needs, the 40 mm bore provides 628.3 N theoretical push at 0.5 MPa, while the 63 mm bore offers 1558.6 N if this 50 mm unit is undersized. If your application requires travel beyond 30 mm, switch to the double-acting ACQ series. When ordering, confirm the 50 mm bore, 25 mm stroke, -S magnet, and M10x1.5 female rod 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 ASQ50X25S FAQ
The theoretical push force is 981.8 N at 0.5 MPa and 1374.4 N at 0.7 MPa before the return spring. The internal spring lowers the net output, so confirm exact net force from the datasheet. Operating pressure is 0.2-1.0 MPa, with 0.2 MPa needed to overcome the spring, and maximum stroke is 30 mm.
As a single-acting push cylinder, exhausting the air allows the internal spring to retract the rod to its rest position automatically. End-of-stroke damping is handled by a fixed NBR elastomer bumper, not an adjustable air cushion. For high-energy cycles, slow the approach speed or use an external shock absorber.
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