
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X100-75S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X100-75S is a double-acting JIS compact cylinder featuring a 32mm bore and a 100mm full stroke. An external threaded stop with a lock nut restricts the extend end position, providing a usable forward travel range of 25 to 100mm. The retract stroke remains completely unaffected by this adjustment. Output force equals that of a standard ACQ unit because the piston area is unchanged; the adjuster solely alters stroke length.
This model includes a built-in piston magnet (-S) for use with reed or solid-state electronic switches. It utilizes a PT1/8 port, a 16mm piston rod, and fixed elastomer bumpers at both ends for end-of-travel deceleration. Operating pressure spans 0.15 to 1.0 MPa, with a maximum speed of 500 mm/s.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X100-75S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 100 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. |
| ×100 | 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 milling tombstone, allowing rapid adaptation when swapping raw casting blanks of differing heights.
Set precise extend endpoints for carton sealing jaws or folding mechanisms during product format transitions without swapping out cylinder hardware.
Establish precise pressing depths for bearing insertion or pin seating on automated workcells, safely testing different end positions before finalizing the mechanical setup.
If your application requires less push force at 0.5 MPa, the 25mm bore variant supplies 245.4 N, whereas stepping up to the 40mm bore yields 628.3 N. A fixed-stroke ACQ32 is sufficient if your end position never varies and on-the-fly adjustments are unnecessary. When ordering, verify the 32mm bore, 100mm full stroke, 75mm adjustment window, the -S magnet option, and the default female M8x1.25 rod-end thread.
Quick checklist
The push force is 402.1 N and pull is 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 usable extend range is 25-100mm, meaning the 100mm full forward stroke can be shortened by up to 75mm via the M12x1.25 external adjuster.
No, the output force remains identical to a standard ACQ because the piston area is unchanged; the external stop only limits travel distance. End-of-stroke energy is managed by fixed NBR elastomer bumpers at each end, so for high-speed or high-inertia loads, an external shock absorber is recommended.
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