
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-100B 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 ACQJ32X90-100B is a double-acting JIS compact cylinder equipped with a male-thread piston rod (M14x1.5) for direct load coupling. An external threaded stop with a lock nut limits the extend end position, providing an adjustable usable extend range of 0-90 mm. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, output force is identical to a standard ACQ of the same 32 mm bore. The body retains magnetic-switch grooves for sensing, though this specific SKU ships without a magnet. Deceleration is handled by a fixed NBR elastomer bumper at each end rather than an adjustable air cushion.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-100B |
|---|---|
| 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 fixture without machining new spacers, adjusting the rod extension from 0 to 90 mm to accommodate raw part tolerances.
Rapidly reposition the extend end stop on a packaging line when switching between carton sizes, using the external M12x1.25 adjuster to set the new push depth.
Safely test insertion depths on an automated assembly press by starting at a short stroke and gradually lengthening the extend distance until optimal seating is found.
When sizing this unit, consider the 32 mm bore yielding 402.1 N push and 301.6 N pull at 0.5 MPa. Stepping down to a 25 mm bore drops the push to 245.4 N, while moving up to a 40 mm bore increases it to 628.3 N. If your machine never requires end-position tuning, a fixed-stroke ACQ cylinder is sufficient. To order, confirm the 90 mm full stroke, the 100 mm adjustment window, the male rod thread, and the PT1/8 port.
Quick checklist
This 32 mm bore cylinder delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa, with a maximum push of 82 kgf at 1.0 MPa. The full stroke is 90 mm, and the 100 mm adjustment window allows the usable extend range to be fine-tuned anywhere from 0 to 90 mm.
The external stop uses an M12x1.25 threaded screw with a lock nut to mechanically block the rod from extending further, changing stroke length only without reducing piston force. The cylinder uses fixed elastomer bumpers for end-of-stroke deceleration and will not hold a load on air loss; use an external rod lock for fail-safe positioning.
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