
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-30B 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 ACQJ32X90-30B is a double-acting JIS compact cylinder with a 90 mm total stroke and a 32 mm bore. An external threaded stop with a lock nut lets you fine-tune the extend end position on the machine, yielding a usable extend range of 60 to 90 mm. The retract stroke remains fixed at the full 90 mm. Because the piston area is unchanged, output force is identical to a standard ACQ of this size.
This variant features a male M14x1.5 rod-end thread for direct load coupling, a 16 mm piston rod, and a PT1/8 port. The body incorporates fixed elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions. Sensor grooves are built into the body, though this specific SKU ships without a magnet.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-30B |
|---|---|
| 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 the exact clamping reach on a CNC lathe fixture without machining new spacer blocks during part changeovers.
Adjust the extension distance of a sorting gate on a packaging line to accommodate varying box widths on the fly.
Set trial end positions for a light-duty assembly press, allowing operators to tune the 60-90 mm stroke window safely before full production.
If you need less push force, the 25 mm bore delivers 245.4 N at 0.5 MPa; if your application requires more thrust, step up to the 40 mm bore which provides 628.3 N. If the exact 90 mm extend position is permanently fixed and never needs adjustment, a standard ACQ32X90 cylinder is sufficient. When ordering this adjustable unit, confirm the 32 mm bore, 90 mm full stroke, 30 mm window, the male rod thread option B, and note that no magnet is included.
Quick checklist
It provides a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa, and 562.9 N push at 0.7 MPa. The maximum push force is 82 kgf at 1.0 MPa. The full stroke is 90 mm, and the external adjuster allows you to shorten the extend stroke by up to 30 mm, giving a usable extend range of 60-90 mm.
An external M12x1.25 threaded stop with a lock nut limits the extend stroke; turning it changes the travel length only, so the output force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration rather than adjustable air cushions. Note that this model ships without a sensor magnet, though the body retains switch grooves.
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