Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X25-10
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X25-10 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 25mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke25 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X25-10
The AirTAC ACQJ40X25-10 is a double-acting JIS compact cylinder featuring an external extend stop. An M12x1.25 threaded adjuster with a lock nut lets you set the extend end position on the machine, yielding a usable extend range of 15-25 mm from the 25 mm full stroke. The retract stroke stays completely unaffected.
Because the piston area remains constant, output force is identical to a standard ACQ of the same bore, delivering 628.3 N push and 527.8 N pull at 0.5 MPa. The body includes fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration and features integrated sensor grooves, though this specific unit ships without a magnet. Operating pressure spans 0.15-1.0 MPa with a PT1/8 port.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X25-10 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X25-10 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 25 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 ACQJ40X25-10
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 ACQJ40X25-10 Is Used
Machining Fixture Stops
Dial in clamping end positions on a CNC fixture during part-changeover without machining new stop collars.
Carton Sealing Tamping
Adjust the flap tamping height on a packaging line to accommodate varying box formats on the fly.
Assembly Press Checks
Probe trial engagement depths on an assembly press, fine-tuning the extend limit by a few millimeters as needed.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X25-10 the Right Cylinder?
If your setup requires less thrust, the ACQJ32 series provides 402.1 N push at 0.5 MPa, whereas stepping up to the ACQJ50 bore yields 981.8 N for heavier loads. When exact end-position tuning is unnecessary, a fixed-stroke ACQ cylinder suffices. To order this adjustable variant correctly, confirm the 40 mm bore, 25 mm full stroke, 10 mm adjuster window, female M8x1.25 rod thread, and PT porting.
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 ACQJ40X25-10 FAQ
The usable extend range is 15-25 mm (25 mm full stroke minus the 10 mm window). It delivers 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The retract stroke remains fixed at 25 mm.
The M12x1.25 external threaded stop and lock nut limit the extend distance without changing the piston area, meaning force remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers. The cylinder will not hold a load on air loss, so an external rod lock is needed for fail-safe holding.
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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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