Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-30S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-30S 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 ACQJ32X75-30S
The AirTAC ACQJ32X75-30S is a double-acting JIS compact cylinder featuring an external threaded stop that permits on-machine extend end-position tuning without swapping parts. With a 75mm base stroke and a 30mm adjustment window, the usable extend range spans 45mm to 75mm. The retract stroke remains completely unaffected by this mechanism.
Because the adjustment only limits travel length and not piston area, the output force matches a standard ACQ bore 32 exactly. The integrated -S piston magnet supports reed or solid-state switches, and the body incorporates fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-30S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-30S |
|---|---|
| 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 ACQJ32X75-30S
| 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 ACQJ32X75-30S Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture during part-changeover, using the external stop to accommodate varying raw stock lengths without re-engineering tooling plates.
Carton Sealing Turrets
Adjust the flap-pressing extension on packaging lines to match different carton heights on the fly, ensuring a crisp fold without over-compressing the cardboard.
Assembly Press Trial
Set trial end positions for a press operation during initial equipment setup, allowing operators to find the optimal insertion depth visually before locking the nut down.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-30S the Right Cylinder?
If your application only needs a fixed 75mm extend position, a standard ACQ32X75 cylinder is sufficient. Choose this ACQJ32X75-30S model when you need to dial in the extend stroke between 45mm and 75mm on the fly. For higher force, the next bore up (40mm) yields 628.3N push at 0.5MPa; for a smaller footprint, the 25mm bore provides 245.4N push. When ordering, confirm the 32mm bore, 75mm full stroke, 30mm 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 ACQJ32X75-30S FAQ
The usable extend range is 45-75mm (75mm full stroke minus up to a 30mm window). Force is identical to a standard ACQ: push is 402.1N and pull is 301.6N at 0.5MPa, push is 562.9N at 0.7MPa, and max push is 82kgf at 1.0MPa.
An external M12x1.25 threaded screw with a lock nut limits the extend travel distance only, leaving the retract stroke unaffected and preserving the piston area so force is unchanged. The cylinder uses fixed NBR elastomer bumpers rather than adjustable air cushions. A plain compact cylinder does not hold its load on air loss, so use an external rod lock for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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