Airtac ATQ Single Acting Thin Cylinder ATQ40X15SB
The AirTAC Airtac ATQ Single Acting Thin Cylinder ATQ40X15SB is a genuine single-acting COMPACT (JIS) cylinder (single acting, pull type) with a Ø40mm bore and 15mm 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
- Stroke15 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 ATQ40X15SB
The AirTAC ATQ40X15SB is a single-acting PULL cylinder, meaning compressed air fed to its single PT1/8 port retracts the 16mm rod, while an internal spring extends it back out upon exhaust. This unit delivers a theoretical pull force of 527.8N at 0.5 MPa and 738.9N at 0.7 MPa. Because the return spring consumes energy during retraction, the actual net output is lower than these theoretical figures, so always verify the exact net force from the official datasheet.
Featuring a 15mm stroke within a 40mm bore, this compact C-clip body relies on a fixed NBR elastomer bumper at each end for end-of-travel damping rather than an adjustable air cushion. The -S option adds a piston magnet for position sensing via reed or solid-state electronic switches. The -B option provides a male M14x1.5 thread on the rod end for direct load coupling. Operating pressure ranges from a 0.2 MPa minimum up to 1.0 MPa.
Airtac ATQ Single Acting Thin Cylinder ATQ40X15SB Technical Specifications
| Model | Airtac ATQ Single Acting Thin Cylinder ATQ40X15SB |
|---|---|
| Series | ATQ JIS compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 ATQ40X15SB
| ATQ | JIS compact single acting, pull 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 ATQ Single Acting Thin Cylinder ATQ40X15SB Is Used
Clamp Release Mechanism
Retracting a holding pin against the spring on a CNC fixture to release a finished metal component safely.
Diverter Gate Retraction
Pulling a sorting flap inward to let standard packages pass, using the spring to push the gate back out.
Web Tension Control
Drawing a tensioning idler back on a packaging line, with the internal spring maintaining consistent outward pressure.
Is the Airtac ATQ Single Acting Thin Cylinder ATQ40X15SB the Right Cylinder?
For sizing up or down, the 32mm bore variant offers a 301.6N theoretical pull at 0.5 MPa, while the 50mm bore provides 824.6N at 0.5 MPa. This 15mm stroke sits well below the 30mm maximum travel limit for this bore. If your application requires a longer extension than 30mm, you must switch to a double-acting ACQ series cylinder. To finalize your order, confirm the 40mm bore, 15mm stroke, the -S magnet requirement, and the -B male M14x1.5 rod 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 ATQ40X15SB FAQ
It provides a theoretical pull of 527.8N at 0.5 MPa and 738.9N at 0.7 MPa before the return spring lowers the net output. It requires a minimum operating pressure of 0.2 MPa to overcome the spring, and the 15mm stroke is within the 30mm maximum limit for this 40mm bore.
If air pressure is lost, the internal spring automatically extends the rod to its outward rest position, which is ideal for hold-down-release logic. End-of-stroke impacts are absorbed by a fixed NBR elastomer bumper, not an adjustable air cushion, so external shock absorbers may be needed for high-energy loads.
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