Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke40 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10
The AirTAC ACQJ40X40-10 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. With a 40mm full stroke and a 10mm adjustment window, you can fine-tune the usable extend range from 30mm up to 40mm directly on the machine. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, the force output is identical to a standard ACQ of this bore, delivering 628.3N push and 527.8N pull at 0.5MPa. The cylinder uses a PT1/8 port, a 16mm rod, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 40 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 ACQJ40X40-10
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 ACQJ40X40-10 Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a milling fixture from 30 to 40mm without machining custom spacer plates for different part heights.
Carton Changeover
Adjust the folding arm extension on a packaging line during a product size changeover, hitting precise carton edges rapidly.
Prototype Positioning
Set trial end positions on a test rig by turning the external M12x1.25 adjuster to find the optimal engagement distance before finalizing the design.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10 the Right Cylinder?
If you need slightly less thrust, the adjacent ACQJ32 bore provides 402.1N push at 0.5MPa, while stepping up to the ACQJ50 bore yields 981.8N push for heavier loads. If your application never requires end-position tuning, a fixed-stroke ACQ40X40 will suffice and saves setup time. When ordering this adjustable model, confirm the 40mm bore, 40mm full stroke, 10mm window, the default female M8x1.25 rod thread, and whether you need the -S magnet option for position sensing.
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 ACQJ40X40-10 FAQ
It delivers 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The usable extend range is 30-40mm (40mm full stroke minus the 10mm window), while the retract stroke remains fixed at 40mm.
An external threaded stop with a lock nut physically limits how far the rod extends, shortening the stroke length only. The piston area is unchanged, so force remains identical to a standard ACQ40. The cylinder uses fixed elastomer bumpers for deceleration, not adjustable air cushions, and this model ships without a sensor magnet.
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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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