
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-30 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X90-30 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend range from 60 mm up to the full 90 mm directly on your machine without swapping parts. The retract stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, output force equals a standard ACQ of the same bore, delivering 402.1 N push at 0.5 MPa. It includes a fixed elastomer bumper at each end for end-of-stroke deceleration and features integrated sensor grooves. This specific configuration ships without a magnet and uses a female M8x1.25 rod-end thread alongside an M12x1.25 adjuster thread.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-30 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 90 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. |
| ×90 | 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 exact clamping extend positions during prototype machining runs without machining new stop blocks.
Quickly reposition the guide arm on a packaging line to accommodate varying carton widths on the fly.
Safely test and incrementally adjust the extend reach on a testing rig to find the optimal contact point.
For lighter duties, the 25 mm bore yields 245.4 N push @0.5 MPa, while stepping up to a 40 mm bore provides 628.3 N push @0.5 MPa for heavier loads. If your application never requires end-position shifts, a fixed-stroke ACQ32X90 is sufficient. When ordering this adjustable variant, confirm the 32 mm bore, 90 mm full stroke, 30 mm window, female rod thread, and note that no magnet (-S) is present for sensing.
Quick checklist
This 32 mm bore cylinder provides 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The adjustable window is 30 mm, giving a usable extend range of 60-90 mm.
No, the adjuster only changes the extend stroke length; force remains identical to a standard ACQ because the piston area is unchanged. The retract stroke is unaffected. The cylinder uses a fixed elastomer bumper for deceleration, and this specific model ships without a sensor magnet.
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