Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100S 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 ACQJ32X125-100S
The AirTAC ACQJ32X125-100S is a double-acting JIS compact cylinder with a 125mm total stroke and an external stopper mechanism. By turning the M12x1.25 adjuster rod and locking the nut, you can set the extend end-position anywhere within a 25 to 125mm usable range. This 100mm adjustment window allows precise product-changeover tuning directly on the machine without swapping parts. Retract travel remains fixed at the full 125mm.
Because the piston area is unaltered by the external stop, output force matches a standard ACQ exactly: 402.1N push and 301.6N pull at 0.5MPa. This specific configuration is a made-to-order long-stroke variant, as 125mm exceeds the 100mm standard maximum for a 32mm bore. It features a 16mm rod, PT1/8 porting, an M8x1.25 female rod-end thread, and a built-in magnet (-S) compatible with reed or solid-state sensors. End-of-travel deceleration relies on fixed NBR elastomer bumpers rather than adjustable pneumatic cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100S |
|---|---|
| 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 ACQJ32X125-100S
| 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 ACQJ32X125-100S Is Used
Machining Fixture Stops
Dial in the exact clamping extension for varying raw casting widths on a CNC lathe without machining custom spacers.
Packaging Diverter Arms
Shift product flow lanes by adjusting the extend out-position on the fly to accommodate different carton widths.
Laboratory Test Rigs
Establish trial end positions for repetitive material indentation tests, tweaking the extend distance quickly via the lock nut.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100S the Right Cylinder?
Choosing this 32mm bore yields 402.1N push at 0.5MPa. If your application needs less force, stepping down to a 25mm bore provides 245.4N push, while moving up to a 40mm bore offers 628.3N. Select this adjustable model only if your process requires varying the extend endpoint within the 25-125mm window; otherwise, a fixed-stroke ACQ cylinder is simpler. When ordering, verify the 125mm total stroke, the 100mm adjuster window, the -S magnet option, and the default female M8x1.25 rod thread. Remember that a plain compact cylinder drifts if air pressure is lost, so add an external rod lock for fail-safe load holding.
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 ACQJ32X125-100S FAQ
At 0.5MPa the push force is 402.1N and pull is 301.6N; at 0.7MPa push is 562.9N. Maximum push is 82kgf at 1.0MPa. The full stroke is 125mm with a 100mm adjustment window, allowing a usable extend range of 25-125mm. The external adjuster uses an M12x1.25 thread.
No, the external threaded stop only limits how far the rod extends, leaving the piston area untouched. The force remains identical to a standard ACQ of the same bore. Deceleration is handled by fixed elastomer bumpers at both ends, and the -S magnet works with reed or electronic switches for position sensing.
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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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