Airtac ASQ Series Single Acting Slim Cylinder ASQ50X20B
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ50X20B is a genuine single-acting COMPACT (JIS) cylinder (single acting, push type) with a Ø50mm 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.
- BoreØ50 mm
- Stroke20 mm
- Port sizePT1/4
- Acting typeSingle acting, push type
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionBumper
About the Airtac ASQ Series Single Acting Slim Cylinder ASQ50X20B
The AirTAC ASQ50X20B is a JIS compact single-acting push cylinder. Supplying air to its single PT1/4 port extends the 20mm stroke rod, while an internal mechanical spring handles retraction. This design requires a minimum operating pressure of 0.2 MPa to overcome the return mechanism. The unit features a male M18x1.5 rod-end thread for direct load coupling.
At 0.5 MPa, this 50mm bore size generates a theoretical push force of 981.8 N (1374.4 N at 0.7 MPa) before the spring is factored in. The return mechanism inherently lowers the net usable output, so confirming the exact net thrust from the official datasheet is advised. End-of-travel deceleration relies on a fixed NBR elastomer bumper rather than adjustable pneumatic cushioning, and while the body retains sensor grooves, this specific configuration ships without a magnet.
Airtac ASQ Series Single Acting Slim Cylinder ASQ50X20B Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ50X20B |
|---|---|
| Series | ASQ JIS compact single-acting cylinder |
| Bore size | Ø50 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.
Theoretical Output Force (Ø50mm, Push)
| Pressure | Push force (before spring) |
|---|---|
| 0.5 MPa | 982 N |
| 0.7 MPa | 1374 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.
Model Code: Airtac ASQ Series Single Acting Slim Cylinder ASQ50X20B
| ASQ | JIS compact single acting, push type cylinder series. |
|---|---|
| 50 | 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).
Where the Airtac ASQ Series Single Acting Slim Cylinder ASQ50X20B Is Used
Stamping Press Ejection
Pushes finished metal blanks out of a stamping die using a robust male-threaded rod, relying on the internal spring to retract safely during the press cycle.
Carton Flap Hold-Down
Extends to keep heavy cardboard flaps flat on a packaging line while adhesive cures, with the fail-safe spring ensuring the rod retracts if air pressure drops.
Pallet Diverter Gate
Momentarily extends a 50mm bore pusher to redirect heavy pallets onto a secondary conveyor track, using the fixed NBR bumper to absorb the end-of-stroke impact.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ50X20B the Right Cylinder?
For sizing, if 981.8 N of theoretical push at 0.5 MPa is excessive, stepping down to a 40mm bore yields 628.3 N. If more force is required, the 63mm bore provides 1558.6 N. This 20mm stroke fits well within the 30mm maximum limit for this bore. If an application demands longer travel, the double-acting ACQ series is the appropriate alternative. To finalize ordering, verify the 50mm bore, 20mm stroke, the inclusion of the male M18x1.5 rod thread, and note that a magnet is not included.
Quick checklist
- ✓ Net push 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 ASQ Series Single Acting Slim Cylinder ASQ50X20B FAQ
This single-acting push cylinder has a 20mm stroke (max 30mm for a 50mm bore). It generates a theoretical push force of 981.8 N at 0.5 MPa and 1374.4 N at 0.7 MPa before the return spring is factored in. A minimum of 0.2 MPa operating pressure is required to overcome the internal spring.
Deceleration is managed by a fixed NBR elastomer bumper at the ends, not an adjustable air cushion. Because it is single-acting, the internal spring provides a fail-safe return, automatically retracting the rod to its rest position if air pressure is lost.
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