
The AirTAC Airtac ATQ Single Acting Thin Cylinder ATQ20X5S is a genuine single-acting COMPACT (JIS) cylinder (single acting, pull type) with a Ø20mm bore and 5mm 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.
The AirTAC ATQ20X5S is a JIS compact cylinder configured for single-acting PULL operation. Feeding air to the single M5x0.8 port retracts the 10mm rod, while an internal mechanical spring drives the extension stroke upon exhaust. This design is ideal for mechanisms requiring a fail-safe extend rest position, such as hold-down-release or tensioning jigs.
At 0.7 MPa, this 20mm bore unit provides a 164.9N theoretical pull force (117.8N at 0.5 MPa) before accounting for the return spring. The internal spring inherently lowers net output, so confirming exact payload limits from the datasheet is recommended. It features a fixed TPU elastomer bumper at each end to soften end-of-stroke impact, and the built-in -S magnet enables tracking via reed or solid-state sensors.
| Model | Airtac ATQ Single Acting Thin Cylinder ATQ20X5S |
|---|---|
| Series | ATQ JIS compact single-acting cylinder |
| Bore size | Ø20 mm |
| Stroke | 5 mm |
| Acting type | Single acting, pull type |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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.
| Pressure | Pull force (before spring) |
|---|---|
| 0.5 MPa | 118 N |
| 0.7 MPa | 165 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.
| ATQ | JIS compact single acting, pull type cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×5 | 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).
Pulls a clamping arm back against spring resistance to maintain calibrated tension on packaging film webs.
Draws a pneumatic lane-diverter gate inward to release product flow, using spring force to extend and block when air drops.
Overcomes internal spring pressure to open a custom gripper assembly on a CNC loading station, snapping closed upon air exhaust.
For sizing, stepping down to the 16mm bore drops the 0.5 MPa theoretical pull to 75.4N, while stepping up to the 25mm bore raises it to 188.9N. This 5mm stroke fits well within the 30mm maximum travel limit for this bore. If your mechanism requires longer extension travel than this single-acting spring format allows, the double-acting ACQ series is the correct alternative. When ordering, verify the 20mm bore, 5mm stroke, -S magnet requirement, and the default female M5x0.8 rod-end thread.
Quick checklist
This 20mm bore single-acting pull cylinder has a 5mm stroke (max standard stroke is 30mm). It generates a theoretical pull force of 117.8N at 0.5 MPa and 164.9N at 0.7 MPa before spring deduction. Operation requires a minimum of 0.2 MPa to overcome the return spring, and the spring automatically extends the rod when air is exhausted.
The ATQ20X5S uses a fixed TPU elastomer bumper at the stroke ends to absorb impact rather than an adjustable air cushion. Its fail-safe behavior means that upon loss of air pressure, the internal spring actively pushes the rod out to its extended rest position. The included -S magnet allows position detection using either reed or electronic solid-state switches.
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