
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.
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.
| Model | Airtac ACQ Ultra Thin Air Cylinder ACQ20X15BCB |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 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.
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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).
Actuates a small pneumatic gate on a PCB depaneling router, using the 15mm stroke to clear routing bits during tool changes.
Provides 157.1 N of clamping pressure to hold a blister pack sealing jig closed under a heat platen.
Drives a short diverter arm on a flat-belt conveyor to push lightweight polyethylene bottles into a reject chute.
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
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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