Airtac ASQ Series Single Acting Slim Cylinder ASQ50X15SB
The AirTAC Airtac ASQ Series Single Acting Slim Cylinder ASQ50X15SB is a genuine single-acting COMPACT (JIS) cylinder (single acting, push type) with a Ø50mm bore and 15mm 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
- Stroke15 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 ASQ50X15SB
The AirTAC ASQ50X15SB is a single-acting push-type JIS compact cylinder. Supplying air to its single PT1/4 port extends the Ø20 mm rod, while an internal mechanical spring handles retraction. This configuration requires only one solenoid valve line, simplifying plumbing. At 0.5 MPa, it delivers a theoretical push force of 981.8 N (1374.4 N at 0.7 MPa) before spring resistance. You must verify the lower net output force against the official datasheet for your specific load.
This 50 mm bore unit features a 15 mm travel distance, well under the 30 mm maximum limit imposed by the return spring. It includes a fixed NBR elastomer bumper to soften end-of-stroke impacts rather than an adjustable air cushion. The -S option adds a piston magnet for position sensing via reed or electronic solid-state switches, and the -B option provides a male M18x1.5 rod-end thread for direct load coupling. If pneumatic pressure drops, the spring ensures a fail-safe return to the retracted rest position.
Airtac ASQ Series Single Acting Slim Cylinder ASQ50X15SB Technical Specifications
| Model | Airtac ASQ Series Single Acting Slim Cylinder ASQ50X15SB |
|---|---|
| Series | ASQ JIS compact single-acting cylinder |
| Bore size | Ø50 mm |
| Stroke | 15 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 ASQ50X15SB
| ASQ | JIS compact single acting, push type cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×15 | 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 ASQ50X15SB Is Used
Press Die Ejection
Uses the 981.8 N theoretical push to eject stamped metal parts from a press die, relying on the internal spring to withdraw the pin when air pressure is cut.
Carton Flap Folding
Extends 15 mm to fold corrugated carton flaps on a packaging line, with the single-acting design cutting valve complexity and ensuring safe retraction.
Heavy Part Hold-Down
Provides robust clamping force to hold heavy workpieces stationary during machining, utilizing the male M18x1.5 thread for a secure tooling attachment.
Is the Airtac ASQ Series Single Acting Slim Cylinder ASQ50X15SB the Right Cylinder?
Selecting this 50 mm bore involves comparing its 981.8 N theoretical push at 0.5 MPa with neighboring sizes. Dropping to a 40 mm bore reduces the theoretical extension force to 628.3 N, whereas stepping up to a 63 mm bore raises it to 1558.6 N. Because single-acting strokes are capped at 30 mm for this bore, any application needing more than 30 mm of travel requires a double-acting ACQ cylinder instead. To finalize your order, confirm the 15 mm stroke, the 50 mm bore, the -S magnet for sensing, and the -B male M18x1.5 rod thread.
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 ASQ50X15SB FAQ
The theoretical push force is 981.8 N at 0.5 MPa and 1374.4 N at 0.7 MPa. These figures represent the air-side force before the return spring; the actual net output is lower and must be confirmed from the datasheet. Operating pressure must be at least 0.2 MPa to overcome the spring, and the maximum stroke for this bore is 30 mm.
If air supply is lost, the internal spring automatically retracts the rod to its resting position. End-of-stroke impact is managed by a fixed NBR elastomer bumper, not an adjustable air cushion. For high-energy cycles, consider adding an external shock absorber to protect the assembly.
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