Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke125 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20
The ACQJ32X125-20 is a double-acting JIS compact cylinder featuring an external M12x1.25 threaded stop with a lock nut to fine-tune the extend end position. This long-stroke made-to-order variant provides a 125mm total stroke, yielding a usable extend range of 105-125mm. The retract stroke remains completely unaffected by the adjuster.
Because the piston area stays constant, output force is identical to a standard ACQ of the same bore, delivering 402.1N push and 301.6N pull at 0.5MPa. The body incorporates fixed NBR elastomer bumpers at both ends and includes sensor grooves, though this specific configuration ships without a magnet. Operating pressure spans 0.15-1.0 MPa with a speed range of 30-500 mm/s.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 125 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 ACQJ32X125-20
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 ACQJ32X125-20 Is Used
Machining Fixture Stops
Dial in the extend reach on CNC machining fixtures to accommodate varying raw material lengths without swapping out cylinder hardware.
Packaging Changeover
Rapidly adjust the product push-off distance during format size changeovers on automated packaging lines to minimize downtime.
Assembly Trial Positions
Establish optimal end stops for pressing or locating components during prototype assembly machine setup and cycle debugging.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20 the Right Cylinder?
When sizing this actuator, note the 32mm bore yields 402.1N push at 0.5MPa. Stepping down to a 25mm bore drops push to 245.4N, while a 40mm bore increases it to 628.3N. If exact extend positioning is unnecessary, a fixed-stroke ACQ suffices. For ordering, confirm the 125mm full stroke, 20mm adjustment window, PT1/8 port, and the default female M8x1.25 rod end. Since this unit lacks the -S magnet, add that suffix if electronic or reed switch sensing is required.
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 ACQJ32X125-20 FAQ
This cylinder has a 125mm full stroke with a 20mm adjustment window, giving a usable extend range of 105-125mm. It delivers 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa.
An external M12x1.25 threaded stop with a lock nut limits the extend length without changing the piston area, so force remains identical to a standard ACQ. The retract stroke is unaffected. Deceleration relies on fixed NBR bumpers, so external shock absorbers are recommended for high-energy loads.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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