
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ40X75-10SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You get a usable extend range of 65-75 mm from the 75 mm full stroke, while the retract stroke remains unaffected. The piston area is unchanged, so force is identical to a standard ACQ of this bore.
It delivers 628.3 N push and 527.8 N pull at 0.5 MPa, with a 128 kgf maximum push at 1.0 MPa. The 16 mm rod uses an M14x1.5 male thread to couple directly to your load, and the M12x1.25 external adjuster allows on-machine end-position tuning without swapping parts. A fixed elastomer bumper handles end-of-stroke deceleration, and the built-in magnet works with reed or electronic solid-state switches.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 75 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 65-75 mm clamping extension on a CNC fixture without machining custom spacers.
Swiftly reposition the extend stop for varying carton sizes on a packaging line during product transitions.
Establish the ideal pressing depth on an assembly station by testing end positions directly on the machine.
If you need less push, the 32 mm bore yields 402.1 N at 0.5 MPa; stepping up to the 50 mm bore provides 981.8 N. A fixed-stroke ACQ suffices if your extend position never varies. Confirm your ordering essentials: 40 mm bore, 75 mm full stroke, 10 mm window, S magnet, and B male rod thread.
Quick checklist
It provides 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a 128 kgf max push at 1.0 MPa. The full stroke is 75 mm with a 10 mm window, giving a usable extend range of 65-75 mm.
The M12x1.25 threaded stop with lock nut limits only the extend stroke, leaving retract unaffected. Force is identical to a standard ACQ because the piston area is unchanged. The fixed elastomer bumper decelerates the load near stroke end, but a plain cylinder does not hold position on air loss; use an external rod lock for fail-safe holding.
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