Airtac ATQ Single Acting Thin Cylinder ATQ40X25
The AirTAC Airtac ATQ Single Acting Thin Cylinder ATQ40X25 is a genuine single-acting COMPACT (JIS) cylinder (single acting, pull type) with a Ø40mm bore and 25mm stroke. Air pulles 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
- Stroke25 mm
- Port sizePT1/8
- Acting typeSingle acting, pull type
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionBumper
About the Airtac ATQ Single Acting Thin Cylinder ATQ40X25
The ATQ40X25 is a JIS compact cylinder engineered for single-acting pull operation. Feeding air into the single PT1/8 port retracts the 16mm rod, while an internal mechanical spring pushes it back out upon exhaust. This design inherently provides a fail-safe extend action, driving the piston to its outward rest position whenever pneumatic pressure drops or is removed. Operating effectively from a 0.2 MPa minimum pressure up to 1.0 MPa, it delivers a theoretical pull force of 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa. Keep in mind these are theoretical figures before the spring; the internal mechanism lowers the net output, so confirm exact net capabilities from the datasheet.
Designed with a 40mm bore and a 25mm stroke, this unit keeps machine envelopes tight. Deceleration relies on a fixed NBR elastomer bumper at the stroke ends rather than an adjustable air cushion. The body features integrated magnetic-switch grooves for tracking, though this specific configuration ships without the -S magnet. To manage high kinetic energy at rapid speeds, incorporate an external shock absorber or moderate the approach velocity.
Airtac ATQ Single Acting Thin Cylinder ATQ40X25 Technical Specifications
| Model | Airtac ATQ Single Acting Thin Cylinder ATQ40X25 |
|---|---|
| Series | ATQ JIS compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull 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, Pull)
| Pressure | Pull force (before spring) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
These are theoretical air-side forces; the return-spring force reduces the NET usable output. Single-acting pull only — the spring performs the opposite stroke. Confirm the net figure from the datasheet and size with a safety margin.
Model Code: Airtac ATQ Single Acting Thin Cylinder ATQ40X25
| ATQ | JIS compact single acting, pull type cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 ATQ Single Acting Thin Cylinder ATQ40X25 Is Used
Packaging Lid Lifting
Applies pneumatic pull to draw back a sealing lid on a packaging line, letting the internal spring passively extend and clamp the lid during air loss.
Diverter Gate Retraction
Pulls a sorting gate out of the conveyor flow on demand; the spring-extend fail-safe guarantees the barrier drops back into guiding position if air pressure disappears.
Tension Release Mechanism
Retracts a holding pin on an assembly fixture to free a finished component, utilizing the 527.8 N theoretical pull at 0.5 MPa to overcome initial binding.
Is the Airtac ATQ Single Acting Thin Cylinder ATQ40X25 the Right Cylinder?
For sizing within the 12-63mm range, a 32mm bore offers a theoretical pull of 301.6 N at 0.5 MPa, whereas stepping up to a 50mm bore yields 824.6 N at 0.5 MPa. Verify your required net tension against the spring loss. This 25mm stroke fits well under the 30mm maximum for this bore. If your mechanism requires longer travel than this single-acting limit allows, transition to the double-acting ACQ series. When finalizing your order, confirm the 40mm bore, 25mm stroke, standard PT1/8 port, and the default female M8x1.25 rod-end thread.
Quick checklist
- ✓ Net pull 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 ATQ Single Acting Thin Cylinder ATQ40X25 FAQ
It provides a theoretical pull force of 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa before the return spring lowers the net output. It is a single-acting pull cylinder requiring a 0.2 MPa minimum pressure to overcome the spring, with a maximum standard stroke of 30mm.
End-of-stroke deceleration relies on a fixed NBR elastomer bumper rather than an adjustable air cushion. Because it is spring-extended, losing air supply automatically pushes the rod to its outward rest position, ensuring a predictable fail-safe state.
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