Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20 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 ACQJ32X30-20
The AirTAC ACQJ32X30-20 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend range from 10 mm up to the full 30 mm directly on the machine without swapping parts, while the retract stroke remains unaffected. The adjuster features an M12x1.25 thread.
Because the piston area stays constant, the output force is identical to a standard ACQ of the same 32 mm bore. The body includes fixed elastomer bumpers at both ends for end-of-stroke deceleration and retains magnetic-switch grooves, though this specific configuration ships without a magnet. Operating pressure spans 0.15 to 1.0 MPa with a PT1/8 port.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20 |
|---|---|
| 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 ACQJ32X30-20
| 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 ACQJ32X30-20 Is Used
Machining Fixture Stops
Dial in the exact extend position from 10 to 30 mm on a CNC machining fixture to accommodate varying raw material lengths without fabricating new stop blocks.
Carton Changeover Pusher
Quickly reposition the extend end point on a packaging line pusher during product size changeovers by turning the external stop nut to match new box dimensions.
Prototype Assembly Press
Establish optimal trial end positions for a prototype assembly press by adjusting the stroke window on the fly, preventing over-travel and damage to delicate components.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20 the Right Cylinder?
When sizing this 32 mm bore unit, note it delivers 402.1 N of push force and 301.6 N of pull force at 0.5 MPa. Stepping down to a 25 mm bore drops the push output to 245.4 N, whereas moving up to a 40 mm bore increases it to 628.3 N. If your application never requires end-position adjustments, a fixed-stroke ACQ cylinder will achieve the same holding power. To order correctly, confirm the 30 mm full stroke, the 20 mm adjustment window, the female rod-end thread M8x1.25, and whether you need 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 ACQJ32X30-20 FAQ
At 0.5 MPa, the push force is 402.1 N and the pull force is 301.6 N. At 0.7 MPa, the push force is 562.9 N, with a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 10 to 30 mm, created by a 20 mm adjustment window subtracted from the 30 mm full stroke.
The external stop only changes the extend stroke length; it does not alter the piston area, so the output force remains identical to a standard ACQ. The cylinder relies on fixed NBR elastomer bumpers at both ends for deceleration rather than an adjustable air cushion, and this model does not include a sensor magnet.
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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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