
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-100SB 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 ACQJ32X90-100SB is a double-acting JIS compact cylinder with a 32 mm bore and a 90 mm full stroke. An external threaded stop with a lock nut limits the extend end position, letting you fine-tune the usable extend range from 0 up to 90 mm directly on the machine without swapping parts. The retract stroke remains unaffected, and the output force is identical to a standard ACQ because the piston area is unchanged.
It features a male M14x1.5 piston rod end for direct load coupling and a built-in magnet for position sensing. The fixed elastomer bumper decelerates the load at stroke ends, while the PT1/8 port supplies air for standard 30-500 mm/s operation. This model is not a tie-rod or ISO cylinder, but a compact C-clip unit built for tight spaces and flexible positioning.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-100SB |
|---|---|
| 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 extend position for varying part lengths on a CNC lathe loader without machining custom stop collars.
Adjust the extend stroke on the fly when switching between box sizes on a packaging line, saving setup time.
Test different pressing depths on an assembly rig by turning the external stop nut until the optimal end point is found.
If you need slightly less force, the 25 mm bore yields 245.4 N push at 0.5 MPa, while stepping up to a 40 mm bore provides 628.3 N push. Choose this 32 mm bore if your fixture requires around 402.1 N push force and a maximum standard stroke of 100 mm. If your end position never changes, a fixed-stroke ACQ cylinder suffices. When ordering, confirm the 32 mm bore, 90 mm full stroke, 100 mm adjuster window, the S magnet option, and the B male rod thread.
Quick checklist
The usable extend range is 0-90 mm because the 100 mm window can shorten the 90 mm full stroke. Force is identical to a standard ACQ: 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 external M12x1.25 threaded stop with a lock nut mechanically limits how far the rod extends, changing stroke length only without altering piston area or force. The retract stroke is unaffected. Deceleration is handled by a fixed NBR elastomer bumper, not an adjustable air cushion, so for high energy loads you should slow the approach or add an external shock absorber.
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