Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke70 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40S
The AirTAC ACQJ32X70-40S is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend end position. With a 40mm adjustment window, the usable extend range spans 30 to 70mm, while the retract stroke remains completely unaffected. Because the piston area stays the same, the output force is identical to a standard ACQ of this 32mm bore, delivering 402.1N of push force at 0.5MPa.
This unit includes a built-in piston magnet (-S) compatible with reed or solid-state switches, fitting neatly into the integrated sensor grooves. It runs on a 16mm rod with an M8x1.25 female rod-end thread, a PT1/8 port, and an M12x1.25 external adjuster thread. Fixed NBR elastomer bumpers at both ends decelerate the motion without requiring adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 70 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 ACQJ32X70-40S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×70 | 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 ACQJ32X70-40S Is Used
Machining Fixture Clamps
Dial in the exact clamping extension on a CNC machining center during product changeover, utilizing the 30 to 70mm range to accommodate different part thicknesses without printing new fixturing.
Carton Sealing Stops
Adjust the extend end position on a packaging line to shift the sealing head height for various box formats, relying on the external stop rather than replacing the entire actuator.
Assembly Press Trial
Test different press-in depths for bearing insertion on an assembly machine by tweaking the lock nut, finding the optimal end position before finalizing the mechanical setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-40S the Right Cylinder?
If 402.1N of push at 0.5MPa is excessive, the 25mm bore offers 245.4N; if your application requires significantly more thrust, stepping up to the 40mm bore provides 628.3N. Choose this adjustable model when you need on-the-fly extend-position tuning for varying setups; if a fixed 70mm end position is always required, a standard ACQ cylinder will suffice. Confirm your ordering essentials: 32mm bore, 70mm full stroke, 40mm window, S magnet, and female 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 ACQJ32X70-40S FAQ
The usable extend range is 30 to 70mm (70mm full stroke minus the 40mm window). Force is unchanged from a standard ACQ 32mm bore: 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.
An M12x1.25 threaded stop with a lock nut limits the extend length only; the retract stroke remains fixed. The adjuster changes stroke length, not piston area, so force is identical to a standard ACQ. Fixed NBR elastomer bumpers handle end-of-stroke deceleration instead of adjustable air cushions.
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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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