Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke40 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40B
The AirTAC ACQJ32X40-40B is a double-acting JIS compact cylinder with a 32 mm bore and a male-thread piston rod end (M14x1.5) that couples directly to your load. An external M12x1.25 threaded stop and lock nut limits the extend end position. With a 40 mm full stroke and a 40 mm adjustment window, the usable extend range runs from 0 mm up to 40 mm. The retract stroke remains completely unaffected.
Because the adjustment mechanism only restricts travel length and leaves piston area unchanged, the output force is identical to a standard ACQ of this bore. At 0.5 MPa it delivers 402.1 N of push force and 301.6 N of pull force. The body features fixed elastomer NBR bumpers at each end for end-of-stroke deceleration and includes sensor grooves, though this specific model ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 40 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 ACQJ32X40-40B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 ACQJ32X40-40B Is Used
Machining Fixture Stops
Dial in the exact extend position on a CNC machining fixture during part changeover without machining new stop blocks.
Transfer Line Diverter
Adjust the extend reach of a transfer gate arm on a packaging conveyor to handle varying product box widths on the fly.
Press Fit Trial Positions
Set precise lower end positions for a press-fitting head to test insertion depths before finalizing a mechanical stop.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40B the Right Cylinder?
Selecting this 32 mm bore cylinder provides 402.1 N push force at 0.5 MPa. If your application requires less force, the next size down is the 25 mm bore, providing 245.4 N push. If you need more thrust, stepping up to the 40 mm bore yields 628.3 N push. A standard fixed-stroke ACQ cylinder is sufficient if your end position never requires tuning. To order this adjustable version correctly, confirm the 32 mm bore, 40 mm full stroke, 40 mm window, the male rod thread option (-B), and whether you need the -S magnet for sensor detection.
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 ACQJ32X40-40B FAQ
The usable extend range is 0-40 mm (40 mm full stroke minus the 40 mm window). The force is identical to a standard ACQ: 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 operating pressure is 0.15-1.0 MPa.
An external M12x1.25 threaded stop with a lock nut limits the extend travel, leaving the retract stroke unaffected. The cylinder uses fixed elastomer bumpers, not adjustable air cushions. Note that a plain ACQ-type does not hold its load on air loss; for a fail-safe hold, use an external rod lock or pilot-operated check valve.
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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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