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AirTAC ACQ Series · JIS Compact Cylinder

Airtac ACQ Ultra Thin Air Cylinder ACQ20X15BCB

The AirTAC Airtac ACQ Ultra Thin Air Cylinder ACQ20X15BCB is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø20mm bore and 15mm 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.

  • BoreØ20 mm
  • Stroke15 mm
  • Port sizeM5×0.8
  • Acting typeDouble acting
  • Rod threadM5×0.8 (F) / M8×1.25 (B)
  • ConfigurationStandard compact
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About the Airtac ACQ Ultra Thin Air Cylinder ACQ20X15BCB

The AirTAC ACQ20X15BCB is a double-acting JIS compact air cylinder engineered for tight axial spaces. A C-clip and riveted piston-to-rod assembly drastically reduce overall length compared to round-body units, yielding 157.1 N of push force at 0.5 MPa. This 20mm bore configuration incorporates a male M8x1.25 piston rod end for direct load coupling and ships with a CB mounting bracket.

Deceleration is handled by a fixed TPU elastomer bumper at each end stop rather than an adjustable air cushion, making it unsuitable for high-energy impacts without external shock absorption. The body retains magnetic-switch grooves, but this specific SKU omits the internal magnet. Operating speed spans 30-500 mm/s across a 0.15-1.0 MPa pressure range.

Airtac ACQ Ultra Thin Air Cylinder ACQ20X15BCB Technical Specifications

ModelAirtac ACQ Ultra Thin Air Cylinder ACQ20X15BCB
SeriesACQ JIS compact (thin) cylinder
Bore sizeØ20 mm
Stroke15 mm
Acting typeDouble acting
Port sizeM5×0.8
Rod end threadM5×0.8 female / M8×1.25 male (B)
FluidAir (filtered by 40µm element)
Operating pressure0.15 – 1.0 MPa
Proof pressure1.5 MPa
Temperature-20 to +70 °C
Speed range30 – 500 mm/s
CushionBumper (both ends)
Max standard strokeUp 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 (Ø20mm)

PressurePush forcePull force
0.5 MPa157 N118 N
0.7 MPa220 N—
Max (@1.0 MPa)32 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 ACQ20X15BCB

ACQJIS compact (thin) double-acting cylinder series.
20Bore size in mm.
×15Stroke length in mm.
SBuilt-in magnet for magnetic-switch position sensing (omit = no magnet).
BMale-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 ACQ20X15BCB Is Used

precision_manufacturing

PCB Router Z-Axis Gate

Actuates a small pneumatic gate on a PCB depaneling router, using the 15mm stroke to clear routing bits during tool changes.

packaging

Blister Pack Sealing Jig

Provides 157.1 N of clamping pressure to hold a blister pack sealing jig closed under a heat platen.

conveyor_belt

Sorter Diverter Arm

Drives a short diverter arm on a flat-belt conveyor to push lightweight polyethylene bottles into a reject chute.

Is the Airtac ACQ Ultra Thin Air Cylinder ACQ20X15BCB the Right Cylinder?

When sizing this 20mm bore unit, stepping down to a 16mm bore reduces output to 100.5 N push at 0.5 MPa, while stepping up to a 25mm bore increases it to 245.4 N. To confirm your ordering essentials: you need a 20mm bore, 15mm stroke, M5x0.8 port, male M8x1.25 rod thread, no sensor magnet, and the CB mounting bracket.

Remember that a standard compact cylinder cannot maintain its position if air pressure drops or the valve centers; the rod will drift and the fixed bumper only absorbs end-of-stroke impact. If your fixture must hold a vertical load without live pressure, specify 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
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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 ACQ20X15BCB FAQ

This 20mm bore double-acting cylinder provides 157.1 N push and 117.8 N pull at 0.5 MPa, 219.9 N push at 0.7 MPa, and a maximum push of 32 kgf at 1.0 MPa. It uses a 10mm rod, an M5x0.8 port, and operates at 30-500 mm/s.

No adjustable air cushion exists; it relies on fixed TPU bumpers at the stroke ends. For high-speed impacts, slow the approach or use an external shock absorber. While the body has sensor grooves, this specific model lacks the internal magnet, so you cannot mount magnetic switches without modifying the order.

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Related AirTAC ACQ Compact Cylinders

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