Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke75 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40
The AirTAC ACQJ32X75-40 is a double-acting JIS compact cylinder featuring an external extend stop. A threaded adjuster with a lock nut lets you fine-tune the extend end position directly on your machinery, yielding a usable forward range of 35 to 75 mm. The return stroke remains fixed at the full 75 mm. Because the piston area stays constant, output force equals a standard ACQ of the same bore.
This 32 mm bore unit pushes 402.1 N and pulls 301.6 N at 0.5 MPa, reaching a maximum push of 82 kgf at 1.0 MPa. It uses a PT1/8 port and a 16 mm rod. Fixed NBR elastomer bumpers absorb impact at both ends, while integrated sensor grooves accept external reed or solid-state switches (this specific configuration ships without a magnet).
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 75 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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).
Where the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40 Is Used
Machining Fixture Stops
Dial in the exact 35-75 mm extend position on a CNC machining fixture to accommodate raw casting variations without swapping cylinder hardware.
Packaging Format Changeover
Rapidly reposition the clamping arm end-stop during a packaging line format changeover, adjusting the stroke window for different carton widths.
Lab Test Positioning
Establish precise trial end positions for a testing probe in an electronics laboratory, tweaking the external M12x1.25 adjuster to find the optimal contact point.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40 the Right Cylinder?
If your setup needs less push force at 0.5 MPa, the 25 mm bore provides 245.4 N; for heavier demands, the 40 mm bore yields 628.3 N. Choose this ACQJ variant when your end-position requirements shift between fixtures or during product changeovers. If the forward stop never varies, a fixed-stroke ACQ cylinder is sufficient. Confirm your ordering details: 32 mm bore, 75 mm full stroke, 40 mm adjustment window, female M8x1.25 rod end, and whether you require the S magnet option for sensing.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-40 FAQ
This 32 mm bore cylinder 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 usable extend range is 35 to 75 mm, achieved by shortening the full 75 mm stroke by up to the 40 mm window.
No, the adjuster only limits the extend length, so the output force remains identical to a standard ACQ because the piston area is unchanged. The retract stroke is completely unaffected. The cylinder relies on fixed elastomer bumpers for end-of-stroke deceleration, and for fail-safe load holding on air loss, an external rod lock or pilot-operated check valve is required.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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