Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-20SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-20SB 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 ACQJ32X80-20SB
The AirTAC ACQJ32X80-20SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. The full stroke is 80 mm, and the 20 mm adjustment window allows you to fine-tune the usable extend range from 60 to 80 mm directly on the machine without swapping parts. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore, delivering 402.1 N push at 0.5 MPa. It features a 16 mm piston rod with a male M14x1.5 thread end for direct load coupling, PT1/8 ports, and fixed NBR elastomer bumpers at each end. The built-in magnet (-S) supports both reed and solid-state sensors, while the external adjuster uses an M12x1.25 thread.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-20SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-20SB |
|---|---|
| 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 ACQJ32X80-20SB
| 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 ACQJ32X80-20SB Is Used
CNC Fixture Clamping
Dial in the exact clamping extension on machining centers when raw material thicknesses vary slightly, preventing over-travel without re-engineering the fixture.
Packaging Diverter Stops
Adjust the extend stop on packaging lines to handle different carton sizes during product changeover, allowing rapid format resets on the fly.
Assembly Press Trial
Set trial end positions on automated assembly presses during prototype runs, safely limiting the 402.1 N extend force until the optimal stroke is proven.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-20SB the Right Cylinder?
When sizing this actuator, consider the 32 mm bore which yields 402.1 N push and 301.6 N pull at 0.5 MPa. If your application requires less force, stepping down to a 25 mm bore provides 245.4 N push, whereas scaling up to a 40 mm bore offers 628.3 N push. If the exact 80 mm extend position is fixed and never requires on-machine tweaking, a standard non-adjustable ACQ cylinder will suffice. To order this adjustable variant correctly, confirm the 32 mm bore, 80 mm full stroke, 20 mm window, the -S magnet for electronic or reed switches, and the -B male M14x1.5 rod 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 ACQJ32X80-20SB FAQ
It delivers 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 80 mm with a 20 mm adjustable window, giving a usable extend range of 60-80 mm. The piston rod is 16 mm with a male M14x1.5 thread, the port is PT1/8, and the external adjuster thread is M12x1.25.
No, the adjuster changes the stroke length only, so force remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at each end, not an adjustable air cushion. Note that a plain compact cylinder does not hold its load on air loss; for fail-safe holding, add an external rod lock or pilot-operated check valve.
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Related AirTAC ACQJ Compact Cylinders
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