
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-30B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 80mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X80-30B is a double-acting JIS compact cylinder featuring an external male-thread rod end (M14x1.5) that couples directly to your load. An external M12x1.25 threaded stop with a lock nut limits the extend end position. You get a usable extend range of 50 to 80 mm from the 80 mm full stroke, while the retract stroke remains completely unaffected.
Because the piston area is unchanged, the force output is identical to a standard ACQ of this bore. You can expect a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa. The unit uses a fixed NBR elastomer bumper at each end for end-of-stroke deceleration and includes sensor grooves, though this specific SKU ships without a magnet.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-30B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 80 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| 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 |
| Rod thread | M8×1.25 (F) / M14×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×80 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Set precise extend endpoints during production line changeovers to accommodate different part sizes without swapping out entire actuators.
Dial in the exact clamping position on machining fixtures during initial setup, allowing on-the-fly adjustments for varying material thicknesses.
Adjust the push depth on packaging equipment to handle various carton dimensions smoothly, relying on the fixed elastomer bumper for consistent deceleration.
If you need 245.4 N push at 0.5 MPa, step down to the 25 mm bore; if your application requires 628.3 N push, step up to the 40 mm bore. A fixed-stroke ACQ is sufficient if your end position never varies. When ordering this adjustable version, confirm the 32 mm bore, 80 mm full stroke, 30 mm adjuster window, the male rod thread (-B), and whether you need the magnet option (-S) for solid-state or reed switches.
Quick checklist
The usable extend range is 50-80 mm (80 mm full stroke minus the 30 mm window). The retract stroke is unaffected. Force is identical to a standard ACQ: push is 402.1 N and pull is 301.6 N at 0.5 MPa, push is 562.9 N at 0.7 MPa, and max push is 82 kgf at 1.0 MPa.
The external M12x1.25 threaded stop limits only the extend stroke length, leaving force unchanged. The cylinder uses a fixed NBR elastomer bumper for deceleration, not an adjustable air cushion. Note that a plain ACQ-type does not hold its load on air loss; for a fail-safe hold, install an external rod lock or pilot-operated check valve.
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