Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30SH
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30SH is a genuine single-acting COMPACT (JIS) cylinder (single acting, push type) with a Ø40mm bore and 30mm 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.
- BoreØ40 mm
- Stroke30 mm
- Port sizePT1/8
- Acting typeSingle acting, push type
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionBumper
About the Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30SH
The AirTAC ASQ40X30SH is a JIS compact single-acting push cylinder. Air delivered to its PT1/8 port extends the Ø16mm rod outwards, while an internal spring handles the return stroke. This single-air-line setup simplifies plumbing and saves valve space. It requires a minimum 0.2 MPa operating pressure to overcome the return mechanism.
At 0.5 MPa, it generates a 628.3N theoretical push force (879.6N at 0.7 MPa) before spring deduction. The actual net output is lower, so verify the exact usable force from the datasheet. Built with a fixed NBR elastomer bumper rather than adjustable cushions, it handles end-of-stroke impact directly. The included -S magnet enables position sensing using either reed or solid-state switches.
Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30SH Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30SH |
|---|---|
| Series | ASQ JIS compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Acting type | Single acting, push type |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 (Ø40mm, Push)
| Pressure | Push force (before spring) |
|---|---|
| 0.5 MPa | 628 N |
| 0.7 MPa | 880 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 ASQ40X30SH
| ASQ | JIS compact single acting, push type cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 ASQ40X30SH Is Used
Stamping Pin Ejection
Pushes finished stamped metal pins out of a die cavity using a short 30mm stroke on an automated press line.
Carton Flap Hold-down
Holds cardboard flaps in position momentarily during case sealing machinery operations before spring retraction.
Conveyor Divert Gate
Acts as a short-stroke pop-up diverter gate to push lightweight parts onto a secondary packaging conveyor track.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30SH the Right Cylinder?
For sizing context, the adjacent ASQ32 bore yields 402.1N and the ASQ50 yields 981.8N theoretical push at 0.5 MPa. This 40mm bore hits a strong middle ground for compact ejection tasks. The 30mm stroke is the maximum standard travel for this bore; if your application requires longer movement, you must switch to the double-acting ACQ series. When ordering, confirm the 40mm bore, 30mm stroke, the -S magnet option, and the default female M8x1.25 rod-end 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 ASQ40X30SH FAQ
It provides a 628.3N theoretical push at 0.5 MPa and 879.6N at 0.7 MPa before spring reduction; the internal return spring lowers the net output, which must be confirmed from the datasheet. The stroke is 30mm, which is the maximum standard limit for this 40mm bore. It requires a 0.2 MPa minimum operating pressure to function.
Because it is single-acting, exhausting the air supply allows the internal spring to retract the rod to its rest position automatically. End-of-trroke impact is managed by a fixed NBR elastomer bumper rather than an adjustable air cushion. For high-speed or high-energy loads, consider adding an external shock absorber to protect the assembly.
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