Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30SB 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 ACQJ32X300-30SB
The AirTAC ACQJ32X300-30SB is a double-acting, single-rod JIS compact cylinder built for specialized long-stroke applications, featuring a 300mm total stroke that exceeds the standard 100mm maximum for this bore size. Equipped with a male M14x1.5 piston rod end, it couples directly to your load. An external M12x1.25 threaded stop with a lock nut limits the extend end position, providing a usable extend range of 270-300mm. The retract stroke remains completely unaffected.
Because the adjuster only restricts travel length and leaves piston area untouched, output force is identical to a standard ACQ of the same bore. At 0.5MPa, push force is 402.1N and pull is 301.6N. The unit relies on a fixed NBR elastomer bumper at each end for deceleration rather than adjustable air cushions. The -S option provides a built-in piston magnet compatible with both reed and electronic solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30SB |
|---|---|
| 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 ACQJ32X300-30SB
| 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 ACQJ32X300-30SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on multi-part CNC fixtures by adjusting the extend stop between 270 and 300mm without machining new spacer blocks.
Product Changeover Diverter
Shift a sorting gate position rapidly on a packaging conveyor line to accommodate different carton lengths using the external rod-end stopper.
Long-Stroke Lift Trials
Test exact lifting heights on an assembly elevator platform, fine-tuning the upper position dynamically before locking the nut for production runs.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30SB the Right Cylinder?
This 32mm bore delivers 402.1N push at 0.5MPa; sizing down to a 25mm bore yields 245.4N, while stepping up to a 40mm bore provides 628.3N. If your application requires a fixed 300mm extend every cycle without variation, a standard ACQ32X300 cylinder is sufficient. When ordering, confirm the 300mm full stroke, the 30mm adjustment window, the -S magnet, and the -B male rod thread. For high-speed approaches over this long stroke, consider adding an external shock absorber since the fixed bumper has limited energy capacity.
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 ACQJ32X300-30SB FAQ
The usable extend range is 270-300mm (300mm full stroke minus a 30mm window). Force is identical to a standard ACQ32: push is 402.1N and pull is 301.6N at 0.5MPa, push is 562.9N at 0.7MPa, and maximum push is 82kgf at 1.0MPa.
An external M12x1.25 threaded stop with a lock nut limits only the extend stroke; retract travel and force remain unchanged. The cylinder uses fixed NBR elastomer bumpers, not adjustable air cushions. Note that a plain ACQ-type cylinder does not hold its load on air loss, so an external rod lock or pilot-operated check valve is required for fail-safe holding.
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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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