Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke50 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30
The AirTAC ACQJ32X50-30 is a double-acting JIS compact cylinder with a 32mm bore and 50mm full stroke, modified with an external extend stop. An M12x1.25 threaded rod-end adjuster paired with a lock nut lets you fine-tune the forward end position directly on the machine without swapping parts. You get a usable extend range of 20-50mm, while the retract stroke remains completely unaffected.
Because the internal piston area is unchanged, output force is identical to a standard ACQ of this size. You can expect 402.1N push and 301.6N pull at 0.5MPa. The body features a fixed NBR elastomer bumper at each end for end-of-stroke deceleration and retains magnetic-switch grooves, though this specific SKU ships without a magnet. The 16mm rod uses an M8x1.25 female end thread and a PT1/8 port.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 50 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 ACQJ32X50-30
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 ACQJ32X50-30 Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC mill fixture. The external stop allows operators to shift the extend endpoint between 20mm and 50mm to accommodate different raw casting widths without machining new spacers.
Packaging Lane Diverters
Adjust the stroke length on a packaging conveyor diverter to handle varying carton depths. The lock nut secures the new 20-50mm extend position so the rod consistently pushes boxes into the correct lane.
Assembly Press Positioning
Set trial end positions for pressing bearings on an assembly line. The threaded stop provides precise depth control for prototype runs, and the fixed elastomer bumper absorbs the impact at the end of travel.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30 the Right Cylinder?
Choosing this 32mm bore makes sense when you need roughly 402.1N push at 0.5MPa but require on-the-fly stroke trimming. Stepping down to a 25mm bore drops your push force to 245.4N, whereas moving up to a 40mm bore increases it to 628.3N. If your extend endpoint never varies, a fixed-stroke ACQ cylinder will suffice. When ordering, confirm the 50mm full stroke, the 30mm adjustment window, the lack of a magnet, and the female 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 ACQJ32X50-30 FAQ
This cylinder delivers 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa. The full stroke is 50mm with a 30mm adjustment window, giving a usable extend range of 20-50mm. The retract stroke remains at the full 50mm.
An M12x1.25 threaded stop with a lock nut limits how far the rod extends, shortening the forward stroke without changing the piston area. Therefore, the output force is identical to a standard ACQ. The cylinder relies on a fixed NBR elastomer bumper for deceleration rather than an adjustable air cushion.
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Related AirTAC ACQJ Compact Cylinders
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