Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20S 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 ACQJ32X50-20S
The AirTAC ACQJ32X50-20S is a double-acting JIS compact cylinder with an external extend stop. A threaded M12x1.25 adjuster and lock nut let you set the extend stroke anywhere from 30 to 50 mm. The retract distance remains a fixed 50 mm. This on-machine tuning removes the need to swap cylinders when changing end positions.
Because the 32 mm piston area stays constant, output force matches a standard ACQ exactly. You get 402.1 N push and 301.6 N pull at 0.5 MPa. The body uses a fixed NBR elastomer bumper at each end for end-of-travel deceleration. The -S option includes a piston magnet compatible with reed or solid-state sensors.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20S |
|---|---|
| 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 ACQJ32X50-20S
| 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 ACQJ32X50-20S Is Used
CNC Vise Clamping
Dial in the exact clamping extension for different part heights on a machining center without swapping out hardware.
Packaging Diverter
Adjust the pusher rod end position on the fly to cleanly divert varying carton widths on a packaging line.
Assembly Press Stops
Fine-tune the press-down end point during product changeovers to avoid crushing delicate electronic components.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20S the Right Cylinder?
This 32 mm bore delivers 562.9 N at 0.7 MPa and an 82 kgf maximum push at 1.0 MPa. If you need less force, the 25 mm bore provides 245.4 N push at 0.5 MPa. For heavier loads, the 40 mm bore yields 628.3 N push at 0.5 MPa. Choose this adjustable model only if your application requires varying the extend end point; otherwise, a fixed-stroke ACQ suffices. Verify your ordering needs: 32 mm bore, 50 mm full stroke, 20 mm window, S magnet, and the default female M8x1.25 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 ACQJ32X50-20S FAQ
It provides 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 usable extend range is 30-50 mm (a 50 mm full stroke minus a 20 mm window).
No, the adjuster limits extend length only, so force is identical to a standard ACQ and the retract stroke remains unaffected. It uses fixed elastomer bumpers for deceleration, and the -S magnet works with reed or electronic switches.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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