
The AirTAC Airtac ATQ Single Acting Thin Cylinder ATQ12X20S is a genuine single-acting COMPACT (JIS) cylinder (single acting, pull type) with a Ø12mm bore and 20mm 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 ATQ12X20S is a single-acting PULL-type JIS compact cylinder where supplying air to the single M5x0.8 port retracts the Ø6 mm rod. An internal mechanical spring drives the extension when air exhausts. This fail-safe behavior ensures the rod extends back to its rest position if pressure drops, making it ideal for hold-down-release or tensioning tasks. Theoretical pull force is 42.4 N at 0.5 MPa and 59.4 N at 0.7 MPa before spring deduction.
Featuring a 20 mm stroke (the maximum for a Ø12 bore), this unit relies on a fixed TPU elastomer bumper at each end for end-of-travel impact absorption rather than an adjustable air cushion. The -S suffix indicates a built-in piston magnet compatible with both reed and electronic solid-state switches via the body's integrated grooves. Operating pressure ranges from 0.2 to 1.0 MPa, requiring a 0.2 MPa minimum to overcome the return spring.
| Model | Airtac ATQ Single Acting Thin Cylinder ATQ12X20S |
|---|---|
| Series | ATQ JIS compact single-acting cylinder |
| Bore size | Ø12 mm |
| Stroke | 20 mm |
| Acting type | Single acting, pull type |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 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 20 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 | 42 N |
| 0.7 MPa | 59 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. |
|---|---|
| 12 | Bore size in mm. |
| ×20 | Stroke length in mm (single-acting max 20 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).
Pneumatically draws a locating pin out of a machined fixture on an automated milling cell when air is applied.
Pulls a spring-loaded sorting gate closed on a packaging conveyor to divert product flow upon exhaust.
Maintains constant belt tension in a light-duty assembly jig by extending via spring when air is removed.
Choose this 12 mm bore if your mechanism requires up to 59.4 N theoretical pull at 0.7 MPa and a 20 mm stroke. If your application demands higher pulling force, step up to the 16 mm bore (75.4 N at 0.5 MPa). Should your design require travel beyond 20 mm, a double-acting ACQ cylinder is necessary. When ordering, verify the 12 mm bore, 20 mm stroke, -S magnet option, and the default female M3x0.5 rod-end thread.
Quick checklist
It provides a theoretical pull of 42.4 N at 0.5 MPa and 59.4 N at 0.7 MPa before spring deduction. The internal spring extends the rod on exhaust, requiring a 0.2 MPa minimum operating pressure. The maximum standard stroke for this 12 mm bore is 20 mm.
Loss of air pressure causes the internal spring to extend the rod to its rest position. End-of-stroke impact is controlled by a fixed TPU elastomer bumper, not an adjustable cushion. The -S magnet allows position detection using either reed or electronic solid-state switches in the body grooves.
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