Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30B
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30B 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 ASQ40X30B
The AirTAC ASQ40X30B is a JIS compact single-acting push cylinder that uses compressed air to extend the rod, while an internal mechanical spring handles retraction. This configuration requires only one air line, simplifying plumbing and valve requirements. It delivers a theoretical push force of 628.3 N at 0.5 MPa and 879.6 N at 0.7 MPa before spring deduction; you should verify the exact net output from the official datasheet.
Designed for short-stroke automation, this 40 mm bore unit features a 30 mm travel limit. It incorporates a fixed NBR elastomer bumper at the end caps to soften impact, rather than an adjustable air cushion. The male M14x1.5 rod-end thread couples directly to tooling, and the body retains standard magnetic-switch grooves even though this specific SKU omits the internal magnet.
Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30B Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30B |
|---|---|
| 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 ASQ40X30B
| 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 ASQ40X30B Is Used
Stamping Pin Locating
Extends to position blanks accurately in progressive die tooling before the press cycles, relying on the spring to withdraw the pin safely on air exhaust.
Package Diverting
Pushes cartons onto a secondary packaging line using the 879.6 N theoretical extension force, with the spring ensuring the diverter retracts clear of the main belt.
Clamping Fixtures
Holds aluminum extrusions steady during CNC machining operations, utilizing the fail-safe spring return to release the workpiece if compressed air pressure is lost.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30B the Right Cylinder?
When sizing this 40 mm bore actuator, compare its 628.3 N theoretical push at 0.5 MPa against adjacent bores: the 32 mm version yields 402.1 N, while the 50 mm provides 981.8 N. If your application requires travel beyond the 30 mm maximum standard stroke for this spring-return design, you must switch to the double-acting ACQ series. To finalize your order, confirm the 40 mm bore, 30 mm stroke, PT1/8 port, and the male M14x1.5 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 ASQ40X30B FAQ
The theoretical push force is 628.3 N at 0.5 MPa and 879.6 N at 0.7 MPa. Because an internal return spring consumes some energy, the actual net force is lower and must be confirmed from the datasheet. Operating pressure ranges from 0.2 to 1.0 MPa, with the 0.2 MPa minimum necessary to overcome the spring, and the maximum standard stroke is capped at 30 mm.
It is a single-acting push type, meaning air extends the rod and the internal spring retracts it. This provides a fail-safe operation where loss of air pressure causes the rod to pull back to its resting position. End-of-stroke deceleration is handled by fixed NBR elastomer bumpers, not adjustable pneumatic cushions.
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