
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-10B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X70-10B is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the forward stroke on the machine across a 60-70 mm usable range (70 mm full stroke minus up to a 10 mm window) via the M12x1.25 adjuster. The retract stroke remains completely unaffected.
Because the piston area is unchanged, output force equals a standard ACQ of this bore, delivering 402.1 N push and 301.6 N pull at 0.5 MPa. This unit features a male M14x1.5 rod end for direct load coupling, a 16 mm rod, and fixed elastomer bumpers. It operates without a magnet, though the body retains sensor grooves for adding switches later.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-10B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 70 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. |
| ×70 | 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 by turning the external stop, accommodating different raw material thicknesses without swapping cylinders.
Rapidly reconfigure product push-off distances during format changes on a packaging conveyor by adjusting the extend limit within the 60-70 mm window.
Safely test intermediate end positions on a small metal forming machine by limiting the forward stroke, preventing crashes during setup.
If you need slightly less push, the 25 mm bore yields 245.4 N at 0.5 MPa, while stepping up to the 40 mm bore provides 628.3 N. Choose this 32 mm bore when your fixture requires roughly 402 N of extend force. If your end position never varies, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable version, confirm the 32 mm bore, 70 mm full stroke, 10 mm window, the male rod thread (-B), and port size PT1/8.
Quick checklist
It provides a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa, with a push of 562.9 N at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 70 mm with a 10 mm adjustable window, yielding a usable extend range of 60-70 mm. The retract stroke remains unaffected.
An external M12x1.25 threaded stop with a lock nut mechanically limits the forward stroke length, so force is identical to a standard ACQ because piston area is unchanged. The cylinder uses fixed NBR elastomer bumpers for end-of-stroke deceleration, not an adjustable air cushion. It will not hold a load on air loss; use an external rod lock or pilot-operated check valve for fail-safe holding.
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