
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ63X20B is a genuine single-acting COMPACT (JIS) cylinder (single acting, push type) with a Ø63mm bore and 20mm stroke. Air pushes 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 ASQ63X20B is a JIS compact cylinder engineered for single-acting push operation. Supplying air to its single PT1/4 port extends the Ø20 mm rod, while an internal mechanical spring handles retraction. This configuration simplifies plumbing by requiring just one air line. At 0.5 MPa, it delivers a theoretical push force of 1558.6 N (2182 N at 0.7 MPa) before spring resistance. Because the return spring consumes some energy, you must verify the actual net output from the official datasheet for your specific load.
Designed for space-constrained setups, this 63 mm bore model features a 20 mm stroke (well under the 30 mm maximum for this size). It incorporates a fixed NBR elastomer bumper at the ends to soften end-of-trroke impacts, which is not an adjustable air cushion. The rod end utilizes a male M18x1.5 thread for direct load coupling. Although the body contains machined grooves for magnetic switches, this specific SKU ships without the internal magnet.
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ63X20B |
|---|---|
| Series | ASQ JIS compact single-acting cylinder |
| Bore size | Ø63 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push 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.
| Pressure | Push force (before spring) |
|---|---|
| 0.5 MPa | 1559 N |
| 0.7 MPa | 2182 N |
These are theoretical air-side forces; the return-spring force reduces the NET usable output. Single-acting push only — the spring performs the opposite stroke. Confirm the net figure from the datasheet and size with a safety margin.
| ASQ | JIS compact single acting, push type cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×20 | 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).
Pushes finished metal parts out of a stamping die using high force over a short 20 mm distance before the spring retracts the rod safely.
Extends briefly to tuck corrugated carton flaps during automated packing lines, relying on the spring to withdraw the mechanism quickly.
Acts as a rigid stop or locator pin actuator on an assembly conveyor, pushing heavy components into a precise datum before release.
When sizing this unit, consider the 1558.6 N theoretical push at 0.5 MPa. If your application requires less force, stepping down to the 50 mm bore yields 981.8 N under the same pressure. Since 63 mm is the largest available ASQ dimension, exceeding the 30 mm stroke capacity means migrating to the double-acting ACQ series for longer travel. To order correctly, confirm the 63 mm bore, 20 mm stroke, male M18x1.5 rod thread, and note that a -S suffix is necessary if position sensing is required.
Quick checklist
It provides a theoretical push force of 1558.6 N at 0.5 MPa and 2182 N at 0.7 MPa. These figures represent the air-side force before the return spring; the usable net force is lower and must be confirmed via the datasheet. Operating pressure ranges from 0.2 to 1.0 MPa, with the 0.2 MPa minimum necessary to overcome the internal spring. The maximum standard stroke for this 63 mm bore is 30 mm.
As a single-acting push cylinder, exhausting the air port allows the internal spring to retract the rod to its rest position, providing a fail-safe return if air pressure is lost. End-of-stroke impact is managed by a fixed NBR elastomer bumper rather than an adjustable air cushion. For high kinetic energy loads, an external shock absorber should be added.
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