Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke75 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20SB
The AirTAC ACQJ32X75-20SB 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 stroke anywhere from 55 mm up to the full 75 mm on the machine itself, while the retract stroke remains completely unaffected. It includes a male M14x1.5 rod-end thread for direct load coupling and a PT1/8 port.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore. At 0.5 MPa it delivers 402.1 N of push force and 301.6 N of pull force. The body relies on a fixed elastomer bumper at each end for deceleration rather than an adjustable air cushion, and the built-in magnet (-S) works with both reed and solid-state electronic switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 75 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 ACQJ32X75-20SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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 ACQJ32X75-20SB Is Used
Machining Fixture Clamping
Dial in the exact 55-75 mm extend position to clamp raw castings of varying widths on a CNC milling table without swapping out cylinder hardware.
Carton Forming Stops
Adjust the pusher end point on the fly when changing corrugated box sizes, ensuring precise folding tabs without repositioning the entire pneumatic assembly.
Assembly Press Trials
Safely test different bearing insertion depths by threading the external stop in or out, finding the optimal travel before locking the nut for production.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20SB the Right Cylinder?
If 402.1 N of push at 0.5 MPa is too much, step down to the 25 mm bore which provides 245.4 N; if you need more power, the 40 mm bore yields 628.3 N. Choose this 32 mm bore when your mechanism demands precise 55-75 mm extend endpoints that might shift during setup. A fixed-stroke ACQ is sufficient if your end position never varies. Confirm your ordering essentials: 32 mm bore, 75 mm full stroke, 20 mm window, -S magnet, and -B male 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 ACQJ32X75-20SB FAQ
It provides 402.1 N push and 301.6 N pull force 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 75 mm with a 20 mm adjustable window, giving a usable extend range of 55-75 mm.
The external M12x1.25 threaded stop with lock nut limits only the extend stroke length, meaning the force remains identical to a standard ACQ. The retract stroke is unaffected, and the cylinder uses fixed elastomer bumpers rather than adjustable air cushions for end-of-stroke deceleration.
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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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