Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke75 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10
The AirTAC ACQJ40X75-10 is a double-acting JIS compact cylinder featuring a 75mm full stroke and an external extend stop with a lock nut. By turning the M12x1.25 adjuster screw, you can fine-tune the extend end position on the machine, yielding a usable extend range of 65-75mm without swapping parts. The retract stroke remains completely unaffected.
Because the piston area is unchanged, output force matches a standard ACQ exactly, delivering 628.3N push and 527.8N pull at 0.5MPa. The 40mm bore uses a PT1/8 port and a 16mm rod with an M8x1.25 female thread end. Fixed NBR elastomer bumpers absorb impact at both ends, and the body includes sensor grooves for adding reed or solid-state switches later.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 ACQJ40X75-10
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | 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 ACQJ40X75-10 Is Used
Machining Fixture Stops
Adjust the 65-75mm extend position on a CNC machining fixture to accommodate raw material blanks of slightly varying lengths without manufacturing custom spacers.
Conveyor Diverter Arms
Fine-tune the extend reach of a diverter arm on a packaging conveyor during product format changeovers to precisely guide different carton widths.
Assembly Press Positioning
Set trial end positions on an assembly press to gently seat bearings, relying on the fixed elastomer bumper to decelerate the tooling near the stroke end.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10 the Right Cylinder?
Choosing this 40mm bore provides 628.3N push at 0.5MPa. If you need less force, the 32mm bore yields 402.1N push, while the larger 50mm bore offers 981.8N push. A fixed-stroke ACQ is sufficient if your extend position never varies. When ordering, confirm the 75mm full stroke, 10mm adjuster window, female rod thread, and whether you need the -S magnet option for switch 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 ACQJ40X75-10 FAQ
The force is identical to a standard ACQ40: 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The 75mm full stroke can be shortened by up to 10mm via the external stop, giving a usable extend range of 65-75mm.
The external M12x1.25 threaded stop with lock nut physically limits how far the rod extends, shortening only the extend stroke. The retract stroke remains unchanged. Force is not reduced. Note that a plain ACQ-type does not hold its load on air loss; for fail-safe holding, use an external rod lock or pilot-operated check valve.
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Related AirTAC ACQJ Compact Cylinders
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