Airtac ACQ Ultra Thin Air Cylinder ACQ25X20
The AirTAC Airtac ACQ Ultra Thin Air Cylinder ACQ25X20 is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø25mm bore and 20mm stroke, M5×0.8 air ports and a C-clip / riveted short body that saves mounting depth. Magnetic-switch slots around the body accept position sensors.
- BoreØ25 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0 (F) / M10×1.25 (B)
- ConfigurationStandard compact
About the Airtac ACQ Ultra Thin Air Cylinder ACQ25X20
The AirTAC ACQ25X20 is a double-acting JIS compact cylinder engineered to deliver 245.4 N of push force and 188.9 N of pull force at 0.5 MPa. Its short C-clip and riveted piston-to-rod body design drastically reduces overall axial length compared to traditional round-body cylinders, saving valuable mounting depth in tight machine layouts. The internal bore is hard-anodized for longevity, and the unit operates smoothly at speeds ranging from 30 to 500 mm/s.
This 25mm bore variant features a 12mm piston rod with a standard female M6x1.0 end thread, and uses an M5x0.8 port. Instead of an adjustable air cushion, it relies on a fixed TPU elastomer bumper at each end to absorb the impact at stroke limits. The body includes integrated grooves for magnetic switches, though this specific configuration ships without the internal magnet.
Airtac ACQ Ultra Thin Air Cylinder ACQ25X20 Technical Specifications
| Model | Airtac ACQ Ultra Thin Air Cylinder ACQ25X20 |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M6×1.0 female / M10×1.25 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACQ JIS compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard); G and NPT available. Rod: female thread (blank) / male thread (B).
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 189 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACQ Ultra Thin Air Cylinder ACQ25X20
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 25 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard (G / NPT available). Related ACQ-family variants: ASQ (single-acting push), ATQ (single-acting pull), ACQD (double rod), ACQJ (adjustable stroke), TACQ (guided / non-rotating).
Where the Airtac ACQ Ultra Thin Air Cylinder ACQ25X20 Is Used
PCB Depaneling Router Gates
Actuates routing machine gates to separate printed circuit boards, utilizing its 245.4 N push force to move lightweight aluminum jigs precisely within a compact assembly station.
Carton Flap Folding
Drives the mechanical arms that fold minor flaps on corrugated carton packaging lines, where the short 20mm stroke and fixed TPU bumper reliably handle rapid end-stops.
Belt Diverter Pushers
Extends a diverter arm to knock misaligned plastic bottles off a conveyor belt, benefiting from the space-saving C-clip body that fits within narrow 60mm frame gaps.
Is the Airtac ACQ Ultra Thin Air Cylinder ACQ25X20 the Right Cylinder?
When sizing your pneumatics, consider stepping down to the 20mm bore for 157.1 N push at 0.5 MPa, or moving up to the 32mm bore for 402.1 N push at 0.5 MPa. This 25mm model hits a solid middle ground for light to medium actuation. To finalize your order, confirm the 20mm stroke, the M5x0.8 port, the female M6x1.0 rod thread, and that no sensor magnet is required. Remember that a plain ACQ cylinder will not hold its load if air pressure drops or the valve is centered; the rod drifts and the fixed TPU bumper only decelerates it near the end of the stroke. For a fail-safe hold, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Handle the C-clip carefully; seat it fully in its groove.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQ Ultra Thin Air Cylinder ACQ25X20 FAQ
At 0.5 MPa, the push force is 245.4 N and the pull force is 188.9 N. At 0.7 MPa, the push force is 343.6 N. The maximum push force is 50 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa and an operating speed of 30-500 mm/s.
No, the ACQ25X20 does not use an adjustable air cushion. It features a fixed elastomer TPU bumper at each end to absorb the end-stop impact. If your application runs at high speeds or involves high kinetic energy, you should add an external shock absorber or slow the approach speed.
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