Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15 is a genuine single-acting COMPACT (JIS) cylinder (single acting, push type) with a Ø40mm bore and 15mm 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
- Stroke15 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 ASQ40X15
The AirTAC ASQ40X15 is a single-acting push-type JIS compact cylinder. Supplying air to its single PT1/8 port extends the Ø16 mm rod, while an internal spring retracts it upon exhaust. This model provides a theoretical push force of 628.3 N at 0.5 MPa and 879.6 N at 0.7 MPa. Because the return spring consumes energy, the net usable output is lower; verify the exact net figure from the datasheet before finalizing your design.
Designed for short-stroke tasks, this 15 mm travel unit stays within the 30 mm maximum limit for this bore. It features a fixed NBR elastomer bumper at each end to soften end-of-stroke impacts, rather than an adjustable air cushion. The body includes magnetic-switch grooves for position sensing, though this specific configuration ships without a magnet. Operating pressure must be at least 0.2 MPa to overcome the spring.
Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15 Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15 |
|---|---|
| Series | ASQ JIS compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 ASQ40X15
| ASQ | JIS compact single acting, push type cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 ASQ40X15 Is Used
Stamping Pin Location
Extends a short 15 mm rod to position alignment pins in a stamping press setup, relying on the spring to withdraw the pin safely during sheet loading.
Package Diverter Arm
Pushes a routing flap on a packaging line to sort cartons; the single-air-line design simplifies valve plumbing while the spring ensures the flap retracts if air pressure drops.
Workpiece Hold-Down
Applies a brief clamping force to hold a metal workpiece steady during a machining cut, retracting automatically when the 0.2-1.0 MPa air supply is exhausted.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15 the Right Cylinder?
For lower force requirements, the ASQ32X15 offers a theoretical push of 402.1 N at 0.5 MPa. If your application needs more power, the ASQ50X15 provides 981.8 N at 0.5 MPa. If your mechanism requires a stroke longer than 30 mm, you must switch to the double-acting ACQ series. When ordering, confirm the 40 mm bore, 15 mm stroke, female M8x1.25 rod thread, and whether you need the -S magnet option for sensing.
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 ASQ40X15 FAQ
The theoretical push force (before spring) is 628.3 N at 0.5 MPa and 879.6 N at 0.7 MPa. The internal return spring lowers the net usable output, so confirm the exact figure from the datasheet. A minimum operating pressure of 0.2 MPa is required to overcome the spring, and the maximum standard stroke for this bore is 30 mm.
It uses a fixed NBR elastomer bumper at the ends to absorb impact, which is not an adjustable air cushion. In a fail-safe scenario, if air pressure is lost, the internal spring automatically retracts the rod back to its rest position. The body has sensor grooves, but note this specific model ships without the -S magnet.
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