
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The ACQJ32X125-10SB is a double-acting, JIS compact cylinder engineered for applications requiring precise extend-position tuning without swapping components. An external M12x1.25 threaded stop and lock nut limits the outward stroke, providing a usable extension range of 115 to 125 mm. The retract distance remains fixed at the full 125 mm. Because the piston area is unchanged, output force equals a standard ACQ of the same bore.
This made-to-order variant features a 125 mm stroke, exceeding the 100 mm standard maximum for a 32 mm bore. It includes a male M14x1.5 piston rod end for direct load coupling and an integrated magnet (-S) for position sensing. The body incorporates fixed NBR elastomer bumpers at each end to absorb end-of-travel impact and operates on PT1/8 pneumatic ports.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 125 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. |
| ×125 | 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).
Dial in the exact clamping extension on CNC fixtures to accommodate raw part tolerances without machining new stop collars.
Rapidly reposition the extend endpoint on packaging lane divertors when switching between different carton widths.
Safely test and iterate the final outward reach of a probe or actuator on lab automation equipment before finalizing dimensions.
Selecting this 32 mm bore actuator provides a theoretical push force of 402.1 N and pull force of 301.6 N at 0.5 MPa. If your application requires less force, stepping down to a 25 mm bore yields 245.4 N of push, while moving up to a 40 mm bore provides 628.3 N. A fixed-stroke ACQ cylinder is sufficient if your end position never varies. When ordering, confirm the 125 mm full stroke, 10 mm adjustment window, S magnet option, and B male rod thread. Note that plain pneumatic cylinders drift on air loss; utilize an external rod lock for fail-safe holding.
Quick checklist
This cylinder delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa, with a maximum push of 82 kgf at 1.0 MPa. The 10 mm adjustment window allows the usable extend range to be fine-tuned from 115 mm up to the full 125 mm stroke.
The external M12x1.25 threaded stop mechanically limits the outward stroke length, meaning force remains identical to a standard ACQ because piston area is unchanged. The retract stroke is unaffected, and end-of-travel deceleration is handled by fixed elastomer bumpers rather than adjustable air cushions.
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