
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-75SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X75-75SB is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend end position. With a full stroke of 75 mm and an adjustment window of 75 mm, the usable extend range spans 0 to 75 mm. The retract stroke remains completely unaffected. Because the piston area stays constant, output force equals that of a standard ACQ, delivering 402.1 N of push at 0.5 MPa.
This unit includes a male M14x1.5 rod-end thread for direct load coupling and a PT1/8 port. It carries the -S magnet option, allowing seamless integration with reed or electronic solid-state switches. Deceleration relies on fixed NBR elastomer bumpers at both ends rather than adjustable air cushions, and the adjuster mechanism utilizes an M12x1.25 thread.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-75SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 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 | 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. |
| ×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 clamping reach on a CNC machining center during part family changeovers without machining new spacer blocks.
Adjust the tucking arm extension on the fly for varying corrugated box sizes on a packaging line.
Set precise press-in depths for bearing insertion on automated assembly equipment during prototype runs.
Selecting this 32 mm bore provides 402.1 N push and 301.6 N pull at 0.5 MPa. If your application requires less force, stepping down to a 25 mm bore yields 245.4 N push, while moving up to a 40 mm bore provides 628.3 N push. A fixed-stroke ACQ is sufficient if your end position never varies. When ordering, confirm the 75 mm full stroke, 75 mm window, the -S magnet, and the -B male rod thread.
Quick checklist
The usable extend range is 0 to 75 mm. 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 maximum push is 82 kgf at 1.0 MPa.
An external M12x1.25 threaded stop with a lock nut limits the extend length without changing the piston area, so force remains unchanged. The cylinder uses fixed NBR elastomer bumpers at each end for deceleration, not adjustable air cushions.
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