Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 30mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke30 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20S
The AirTAC ACQJ32X30-20S is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut. This mechanism limits the extend stroke, providing a usable extension range of 10 to 30 mm out of the 30 mm full stroke. The retract movement remains completely unaffected. A built-in piston magnet comes standard for position sensing.
Because the adjuster only alters travel length and not the piston area, the output force remains identical to a standard ACQ of the same bore. At 0.5 MPa, it delivers 402.1 N of push force and 301.6 N of pull force. The unit incorporates fixed NBR elastomer bumpers at both ends and operates efficiently between 30 and 500 mm/s within a -20 to +70 C environment.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 30 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 ACQJ32X30-20S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×30 | 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 ACQJ32X30-20S Is Used
Machining Fixture Stops
Dial in the exact extend position for varying raw material thicknesses on a CNC lathe without machining custom spacer blocks.
Product Changeover Diverter
Quickly reposition a packaging line sorting gate by shortening the extend stroke from 30mm down to 10mm for different carton widths.
Prototype Press End-Stop
Safely test trial end positions on a laboratory press by adjusting the external M12x1.25 stopper nut on the fly during process validation.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20S the Right Cylinder?
If your application requires less thrust, the ACQJ25X30-20S provides 245.4 N of push at 0.5 MPa, whereas stepping up to the ACQJ40X30-20S yields 628.3 N. Choose this 32mm bore when 402.1 N is the target output. A fixed-stroke ACQ32 is sufficient if your end position never requires adjustment. To order correctly, confirm the 32mm bore, 30mm full stroke, 20mm window, the S magnet option, and the default female M8x1.25 rod-end thread. Ports are PT1/8.
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 ACQJ32X30-20S FAQ
This 32mm bore cylinder delivers 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 30mm with a 20mm adjustable window, giving a usable extend range of 10-30mm. It features a PT1/8 port, an M8x1.25 female rod thread, and an M12x1.25 external adjuster thread. Retract stroke is unaffected by the adjuster.
No, the output force remains identical to a standard ACQ because the adjuster only changes travel length, not piston area. The cylinder uses fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions. For high-speed or high-energy loads, consider adding an external shock absorber. The built-in magnet works with both reed and electronic solid-state switches.
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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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