Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75 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 ACQJ32X300-75
The ACQJ32X300-75 is a double-acting JIS compact cylinder engineered for applications requiring variable extend endpoints. It features a 300mm total stroke paired with an external M12x1.25 threaded stop and lock nut, allowing you to dial back the forward travel by up to 75mm. This creates a usable extension range of 225-300mm, while the retract stroke remains completely unaffected. Because the internal piston area stays constant, output force is identical to a standard ACQ of the same bore.
This long-stroke, made-to-order variant exceeds the standard 100mm maximum for a 32mm bore, delivering extended reach in a riveted C-clip body. It generates 402.1N of push force and 301.6N of pull force at 0.5 MPa, peaking at 82 kgf at 1.0 MPa. The unit incorporates fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable pneumatic cushions. It ships without a magnet but retains integrated switch grooves for adding sensors later.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75 |
|---|---|
| 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 ACQJ32X300-75
| 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 ACQJ32X300-75 Is Used
Machining Fixture Stops
Dial in the exact clamping reach on CNC machining centers during setup. The 225-300mm adjustability accommodates different raw material widths without fabricating custom spacer blocks.
Packaging Changeover
Rapidly reposition product pushers or folding mechanisms on packaging lines when switching carton sizes. The external lock nut secures the new extend endpoint firmly.
Assembly Press Positioning
Set precise trial downward strokes for pressing bearings or pins. Operators can tweak the 32mm bore's 402.1N extension force depth on the fly to prevent part damage.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-75 the Right Cylinder?
When sizing this actuator, consider the 32mm bore against adjacent options. Stepping down to a 25mm bore drops the 0.5 MPa push force to 245.4N, whereas moving up to a 40mm bore increases it to 628.3N. If your machinery never requires end-position adjustments, a fixed-stroke ACQ cylinder will accomplish the same task with a shorter lead time. For this adjustable model, verify your ordering essentials: 32mm bore, 300mm full stroke, 75mm window, female M8x1.25 rod thread, and PT1/8 porting. Note that because it lacks the S magnet, you must add one separately if electronic or reed switch sensing is required.
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 ACQJ32X300-75 FAQ
This 32mm bore cylinder provides 402.1N push and 301.6N pull at 0.5 MPa, 562.9N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The total stroke is 300mm, but the external stop allows you to shorten the extend travel by up to 75mm, yielding a usable extend range of 225-300mm.
An external M12x1.25 threaded screw with a lock nut mechanically limits how far the rod extends, leaving the retract stroke unchanged. This adjustment alters only the travel distance, not the piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers instead of adjustable air cushions, and because it is a standard double-acting cylinder, it will not hold a load if air pressure is lost without an external rod lock.
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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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