
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-10B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X40-10B is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend stroke. You can fine-tune the extend end position on the machine across a 30 to 40 mm usable range, shortening the 40 mm full stroke by up to 10 mm without swapping parts. The retract stroke remains completely unaffected. Because the piston area stays constant, force output is identical to a standard ACQ of the same bore.
This unit delivers 402.1 N push and 301.6 N pull force at 0.5 MPa, rising to 562.9 N push at 0.7 MPa. It features a 16 mm piston rod with a male M14x1.5 thread for direct load coupling, a PT1/8 port, and a fixed NBR elastomer bumper at each end for end-of-stroke deceleration. The body includes magnetic-switch grooves, though this specific configuration ships without a magnet. For high-speed cycling, consider adding an external shock absorber to manage kinetic energy.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-10B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 40 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. |
| ×40 | 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 extend position within the 30-40 mm window to clamp raw billets of varying widths on a CNC milling table without machining custom spacers.
Quickly reposition the extend end stop on a packaging line diverter to handle different carton lengths, using the external M12x1.25 adjuster thread to set the new depth.
Test multiple insertion depths on an automated press by tweaking the rod extension in 1 mm increments, leveraging the 562.9 N push force at 0.7 MPa to seat bearings.
If your application requires less force, the adjacent ACQJ25 model provides 245.4 N push at 0.5 MPa, whereas stepping up to the ACQJ40 bore yields 628.3 N push. A fixed-stroke ACQ32 cylinder is sufficient if your extend position never requires field adjustment. When ordering this adjustable variant, confirm the 32 mm bore, 40 mm full stroke, 10 mm adjuster window, the male M14x1.5 rod thread, and that no magnet is included.
Quick checklist
At 0.5 MPa it provides 402.1 N push and 301.6 N pull force, and 562.9 N push at 0.7 MPa, with a maximum push of 82 kgf at 1.0 MPa. The full stroke is 40 mm with a 10 mm adjustable window, giving a usable extend range of 30 to 40 mm.
No, the external threaded stop only limits how far the rod extends; the piston area is unchanged so force remains identical to a standard ACQ. The cylinder uses a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion, and this specific model ships without a sensor magnet.
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