Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke300 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40S
The AirTAC ACQJ32X300-40S is a double-acting, single-rod JIS compact cylinder built for long-stroke, made-to-order applications. It features an external M12x1.25 threaded stop with a lock nut that limits the extend end position. You get a usable extend range of 260 to 300 mm, while the retract stroke remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore, delivering 402.1 N push at 0.5 MPa. The unit includes a built-in piston magnet for electronic or reed switches, fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration, and a PT1/8 port.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 300 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 ACQJ32X300-40S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 ACQJ32X300-40S Is Used
Long-Stroke Material Handling
Dial in the exact 260-300 mm extend position on a conveyor sorting gate during product changeovers without machining new spacers.
Variable Carton Sealing
Adjust the extend stop on the fly to accommodate different box depths on a packaging line, utilizing the full 300 mm stroke capacity.
CNC Fixture Positioning
Fine-tune the end stop on a machining center clamping arm to test trial positions before locking the M12x1.25 adjuster nut.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-40S the Right Cylinder?
This 32 mm bore provides 402.1 N push and 301.6 N pull at 0.5 MPa. If you need less force, the 25 mm bore offers 245.4 N push, or for heavier loads, step up to the 40 mm bore which yields 628.3 N push. If your machine only requires a fixed end position, a standard ACQ32 cylinder suffices. When ordering, confirm the 300 mm full stroke, 40 mm adjustment window, S magnet option, and female M8x1.25 rod-end thread.
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 ACQJ32X300-40S FAQ
It 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 300 mm, and the external adjuster provides a 40 mm window, yielding a usable extend range of 260 to 300 mm.
No, the adjuster only changes the extend stroke length, not the piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration, not adjustable air cushions. For fail-safe load holding on air loss, you must add 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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