Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20S 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 ACQJ32X75-20S
The ACQJ32X75-20S is a double-acting JIS compact cylinder featuring a 32mm bore and a 75mm full stroke. An external M12x1.25 threaded stop with a lock nut lets you fine-tune the extend end position directly on your equipment. You get a usable extension range of 55 to 75mm, while the retract stroke remains completely unaffected.
Because the adjuster only limits travel length, the piston area stays the same. This means your output force is identical to a standard ACQ of this bore size, delivering 402.1N push at 0.5MPa. The -S suffix equips the piston with a magnet compatible with both reed and solid-state sensors, and fixed NBR elastomer bumpers handle end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20S |
|---|---|
| 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 ACQJ32X75-20S
| 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 ACQJ32X75-20S Is Used
Machining Fixture Stops
Dial in the exact clamping extension on a CNC fixture during setup, allowing rapid accommodation for varying raw material thicknesses without machining new stop collars.
Packaging Changeover
Swiftly modify the extend position of a carton sealing flap folder when switching between different box formats on a packaging line, minimizing production downtime.
Assembly Press Trial
Safely test different pressing depths for bearing insertion on an assembly press by tweaking the external stopper nut, finding the optimal travel before finalizing the cycle.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20S the Right Cylinder?
If you need less push, the 25mm bore yields 245.4N at 0.5MPa, whereas stepping up to a 40mm bore provides 628.3N. A fixed-stroke ACQ is adequate if your end position never varies. To order this unit correctly, confirm the 32mm bore, 75mm full stroke, 20mm adjuster window, the -S magnet option, 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 ACQJ32X75-20S FAQ
The force is identical to a standard ACQ of the same bore. It provides 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa. The full stroke is 75mm, and with the 20mm adjustment window, the usable extend range is 55 to 75mm.
The external M12x1.25 threaded stop with a lock nut limits the extend stroke length only, leaving the retract stroke untouched and keeping the force unchanged. The cylinder uses fixed NBR elastomer bumpers for deceleration, not adjustable air cushions. It will not hold a load on air loss; use an external rod lock or pilot-operated check valve for fail-safe holding.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
Request a Quote for Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.