Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15B
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15B 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 ASQ40X15B
The ASQ40X15B is a JIS compact single-acting push cylinder. Feeding air to its single PT1/8 port extends the 16mm rod outward, while an internal mechanical spring handles the retraction phase. This design simplifies plumbing by requiring just one solenoid line. Theoretical air-side push output is 628.3N at 0.5MPa and 879.6N at 0.7MPa, though the return spring reduces the true net force, which must be verified from the datasheet.
This specific configuration features a male M14x1.5 threaded rod end for direct mechanical coupling. Stopping is managed by a fixed NBR elastomer bumper rather than an adjustable air cushion. If air pressure drops, the spring provides a fail-safe retraction back to the rest position. Operating pressure begins at 0.2MPa to overcome the spring and tops out at 1.0MPa.
Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15B Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15B |
|---|---|
| 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 ASQ40X15B
| 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 ASQ40X15B Is Used
CNC Milling Clamp
Holds raw aluminum blocks firmly against a machining vise jaw using the male M14x1.5 rod end before the cutting cycle begins.
Packaging Diverter
Pushes misaligned cardboard cartons off a high-speed packaging belt in a fail-safe manner when the air supply is vented.
Stamping Pin Locator
Extends a short 15mm stroke to position alignment pins under a hydraulic stamping press, retracting instantly upon exhaust.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ40X15B the Right Cylinder?
This 40mm bore generates a mid-range 628.3N theoretical push at 0.5MPa. If your load is lighter, the 32mm bore offers 402.1N, or for heavier demands, the 50mm bore provides 981.8N. The 15mm stroke fits well within the 30mm maximum limit for this bore. Should your application require longer travel, the double-acting ACQ series is necessary. When ordering, confirm the 40mm bore, 15mm stroke, male M14x1.5 rod thread, and note this unit lacks a piston magnet.
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 ASQ40X15B FAQ
The theoretical push force (before spring) is 628.3N at 0.5MPa and 879.6N at 0.7MPa. The return spring lowers the net output, so confirm exact figures from the datasheet. A 0.2MPa minimum operating pressure is required to overcome the spring, with a maximum limit of 1.0MPa and a 15mm stroke.
It uses a fixed NBR elastomer bumper at the end of travel, which is not adjustable. For high kinetic energy loads, an external shock absorber is recommended. If air loss occurs, the internal spring ensures a fail-safe retraction of the rod back to its rest position.
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