Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-10
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-10 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 80mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke80 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-10
The AirTAC ACQJ40X80-10 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 70mm up to the full 80mm directly on the machine without swapping parts. The retract stroke remains completely unaffected. Because the piston area stays the same, the output force is identical to a standard ACQ of this bore.
This 40mm bore unit pushes 628.3N and pulls 527.8N at 0.5MPa, reaching 879.6N at 0.7MPa. It uses a 16mm rod, a PT1/8 port, and an M12x1.25 external adjuster thread. The body includes fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions. While this specific configuration ships without a magnet, the cylinder body retains magnetic-switch grooves for adding position sensing capabilities.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-10 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-10 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 ACQJ40X80-10
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | 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 ACQJ40X80-10 Is Used
Machining Fixture Positioning
Dial in the exact clamping extension on a CNC machining fixture during setup, allowing 70 to 80mm of travel to accommodate varying part tolerances without manufacturing new stop blocks.
Packaging Line Changeover
Adjust the extend end position rapidly when switching a packaging line between different carton sizes, using the external lock nut to set the precise 70-80mm push distance on the fly.
Assembly Press Trial
Test and establish the perfect pressing depth on an automated assembly press, tweaking the extend stop within the 10mm window to find the optimal end position before locking it down.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-10 the Right Cylinder?
This 40mm bore cylinder provides 628.3N of push force at 0.5MPa. Stepping down to a 32mm bore yields 402.1N, while stepping up to a 50mm bore offers 981.8N. If your application requires a fixed 80mm extend stroke without on-the-fly adjustments, a standard ACQ40X80 is sufficient. When ordering this adjustable variant, confirm the 40mm bore, 80mm full stroke, 10mm window, female M8x1.25 rod-end thread, and whether you need the S magnet option for reed or solid-state switches.
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 ACQJ40X80-10 FAQ
The usable extend range is 70-80mm (an 80mm full stroke minus up to a 10mm window). Force is identical to a standard ACQ: 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa.
The external M12x1.25 threaded stop changes only the extend stroke length, not the piston area, so output force remains unchanged. The cylinder relies on fixed NBR elastomer bumpers at both ends for deceleration rather than adjustable air cushions. Note that this model ships without a magnet, though the body retains sensor grooves for adding reed or solid-state switches if needed.
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Related AirTAC ACQJ Compact Cylinders
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