Airtac ATQ Single Acting Thin Cylinder ATQ50X25SB
The AirTAC Airtac ATQ Single Acting Thin Cylinder ATQ50X25SB is a genuine single-acting COMPACT (JIS) cylinder (single acting, pull type) with a Ø50mm 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.
- BoreØ50 mm
- Stroke25 mm
- Port sizePT1/4
- Acting typeSingle acting, pull type
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionBumper
About the Airtac ATQ Single Acting Thin Cylinder ATQ50X25SB
The ATQ50X25SB is a JIS compact single-acting PULL cylinder where compressed air retracts the Ø20 mm rod, while an internal spring drives the extension stroke. This tension operation requires just one air line, simplifying plumbing and valve setup. Theoretical air-side pull force is 824.6 N at 0.5 MPa and 1154.5 N at 0.7 MPa, though the return spring lowers net output, so verify exact net figures from the datasheet.
This 50 mm bore actuator includes a fixed NBR elastomer bumper at each end to absorb end-of-stroke energy, rather than an adjustable air cushion. Equipped with a piston magnet (-S), it works seamlessly with reed or solid-state electronic switches for position sensing. The male M18x1.5 rod-end thread (-B) couples directly to your load, and the PT1/4 port handles fluid filtered to 40 microns.
Airtac ATQ Single Acting Thin Cylinder ATQ50X25SB Technical Specifications
| Model | Airtac ATQ Single Acting Thin Cylinder ATQ50X25SB |
|---|---|
| Series | ATQ JIS compact single-acting cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull type |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 (Ø50mm, Pull)
| Pressure | Pull force (before spring) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa | 1155 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 ATQ50X25SB
| ATQ | JIS compact single acting, pull type cylinder series. |
|---|---|
| 50 | 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 ATQ50X25SB Is Used
Gate Retraction
Pulls a sorting gate out of the conveyor flow path on packaging lines when air is applied, using the spring to push it back into blocking position on exhaust.
Clamp Release
Draws back a tensioning arm on a CNC fixture to free the workpiece, relying on the fail-safe spring extension to maintain clamping force if air pressure drops.
Drawer Pull-back
Retracts a loaded sliding tray inward on automated storage machines, letting the internal spring gently push it to the extended rest position during downtime.
Is the Airtac ATQ Single Acting Thin Cylinder ATQ50X25SB the Right Cylinder?
For sizing within the 12-63 mm range, the 40 mm bore offers a 527.8 N theoretical pull at 0.5 MPa, while the 63 mm bore provides 1401.5 N. This 50 mm model provides a balanced 824.6 N. If your application needs travel beyond the 30 mm maximum single-acting stroke, select the double-acting ACQ series instead. When ordering, confirm the 25 mm stroke, the -S magnet requirement, and the -B male M18x1.5 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 ATQ50X25SB FAQ
It delivers a theoretical pull (before spring) of 824.6 N at 0.5 MPa and 1154.5 N at 0.7 MPa. The internal spring lowers net output, so confirm exact net force from the datasheet. It is a single-acting pull type requiring a 0.2 MPa minimum operating pressure to overcome the spring, with a 25 mm stroke (maximum standard stroke is 30 mm for this bore).
If air is lost, the internal spring automatically extends the rod to its rest position, making it ideal for hold-down-release or tensioning logic. To manage end-of-stroke impact, the cylinder uses a fixed NBR elastomer bumper rather than an adjustable air cushion. For high kinetic energy loads, you should slow the approach speed or add an external shock absorber.
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