Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30 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 ASQ40X30
The AirTAC ASQ40X30 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 mechanical spring handles the retraction. This design requires only one pneumatic line, cutting valve complexity and simplifying plumbing. Operating pressure must be at least 0.2 MPa to overcome the return spring.
At 0.5 MPa it generates 628.3 N of theoretical push force, climbing to 879.6 N at 0.7 MPa. These figures represent the air-side power before the spring resistance is subtracted, so you should verify the exact net output from the official datasheet. The unit relies on a fixed NBR elastomer bumper for end-of-stroke damping rather than an adjustable air cushion, and its body includes standard magnetic-switch grooves.
Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30 Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30 |
|---|---|
| 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 ASQ40X30
| 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 ASQ40X30 Is Used
CNC Fixture Clamping
Holds aluminum castings firmly against a machining datum during light milling operations.
Carton Flap Ejection
Pushes folded cardboard flaps clear of the sealing head on a high-speed packaging line.
Stamping Pin Locating
Extends a hardened alignment pin into a hole to register sheet metal prior to pressing.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ40X30 the Right Cylinder?
For lower force requirements, the ASQ32X30 offers 402.1 N theoretical push at 0.5 MPa. If your application needs significantly more power, the ASQ50X30 provides 981.8 N at the same pressure. This ASQ40X30 model ships without a piston magnet and uses a default female M8x1.25 rod-end thread. It provides the maximum standard 30 mm stroke for this bore; if your mechanism requires longer travel, you must switch to the double-acting ACQ series instead.
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 ASQ40X30 FAQ
The theoretical push force is 628.3 N at 0.5 MPa and 879.6 N at 0.7 MPa. Because an internal spring returns the rod, the net usable force is lower and must be confirmed from the datasheet. The maximum standard stroke is 30 mm, and operation requires a minimum of 0.2 MPa to overcome the spring.
It uses a fixed NBR elastomer bumper at the stroke ends to dampen impact, meaning there is no adjustable air cushion. If pneumatic air pressure drops or is lost completely, the internal spring automatically retracts the rod back to its home position, providing a safe default state.
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Related AirTAC ASQ Cylinders
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