Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 80mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke80 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50
The AirTAC ACQJ32X80-50 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend range from 30 up to 80 mm directly on the machine without swapping parts. The retract stroke remains unaffected, and the M12x1.25 adjuster thread allows precise positioning. Because the piston area stays constant, the output force is identical to a standard ACQ of the same bore.
This 32 mm bore unit delivers 402.1 N of push force and 301.6 N of pull force at 0.5 MPa, with a maximum push capacity of 82 kgf at 1.0 MPa. It features a 16 mm piston rod, a PT1/8 port, and a fixed elastomer bumper at each end for end-of-stroke deceleration. The body includes magnetic-switch grooves, though this specific configuration ships without a magnet. Operating pressure spans 0.15-1.0 MPa across a temperature range of -20 to +70 C, with operational speeds between 30-500 mm/s.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 80 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 ACQJ32X80-50
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 ACQJ32X80-50 Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on a CNC milling fixture during prototype runs or when material thickness varies, using the external stop to prevent over-travel without reprogramming the machine cycle.
Carton Sealing Flaps
Adjust the folding arm extension on a packaging line to accommodate different carton heights, ensuring precise flap positioning during rapid product changeovers.
Assembly Press Stops
Set trial end positions on an assembly press for pressing bearings, allowing operators to tweak the 30-80 mm extend depth on-site without fabricating new mechanical spacers.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50 the Right Cylinder?
When sizing this model, consider the 402.1 N push force at 0.5 MPa. If your application requires less force, stepping down to a 25 mm bore yields 245.4 N push, while moving up to a 40 mm bore provides 628.3 N. If the extend end position never needs variation, a standard fixed-stroke ACQ32X80 will suffice. To order, confirm the 32 mm bore, 80 mm full stroke, 50 mm adjustable window, female M8x1.25 rod-end thread, and PT1/8 porting. Note that this variant lacks the -S magnet option for solid-state or reed sensors.
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 ACQJ32X80-50 FAQ
The force is identical to a standard ACQ cylinder of this bore: push is 402.1 N and pull is 301.6 N at 0.5 MPa, push is 562.9 N at 0.7 MPa, and max push is 82 kgf at 1.0 MPa. The full stroke is 80 mm with a 50 mm adjustable window, meaning the usable extend range is 30-80 mm.
The external threaded stop uses an M12x1.25 adjuster with a lock nut to mechanically limit how far the rod extends, shortening the extend stroke only. The retract stroke remains completely unaffected. Force is unchanged because the piston area is the same. The cylinder uses a fixed elastomer bumper at each end for deceleration rather than an adjustable air cushion.
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Related AirTAC ACQJ Compact Cylinders
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