Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10B 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 ACQJ40X40-10B
The AirTAC ACQJ40X40-10B is a double-acting JIS compact cylinder featuring an external M12x1.25 threaded stop and lock nut that limits the extend stroke. You can fine-tune the extend end position on the machine without swapping parts, achieving a usable extend range of 30-40 mm. The retract stroke remains completely unaffected by this adjustment.
Because the adjuster only alters travel length and not piston area, output force stays identical to a standard ACQ of the same bore. This 40 mm bore variant delivers 628.3 N of push force at 0.5 MPa. It includes a male M14x1.5 rod end for direct load coupling, a fixed NBR elastomer bumper at each end, and operates at speeds from 30-500 mm/s.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10B |
|---|---|
| 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 ACQJ40X40-10B
| 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 ACQJ40X40-10B Is Used
Machining Fixture Stops
Dial in the extend position from 30 to 40 mm on a CNC machining fixture to accommodate raw part tolerances without machining new stop blocks.
Product Changeover Guides
Quickly reposition the extend end stop on a packaging line when switching between different carton sizes, ensuring precise mechanical ejection.
Assembly Press Trials
Test different extend depths during light assembly press setups, relying on the fixed elastomer bumper to absorb end-of-stroke energy.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10B the Right Cylinder?
Selecting this model provides a 128 kgf maximum push at 1.0 MPa. If your application requires less force, stepping down to a 32 mm bore yields 402.1 N push at 0.5 MPa, while moving up to a 50 mm bore provides 981.8 N. A fixed-stroke ACQ cylinder is sufficient if your end position never varies. When ordering, confirm the 40 mm bore, 40 mm full stroke, 10 mm adjuster window, the male 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 ACQJ40X40-10B FAQ
It provides a push force of 628.3 N and pull force of 527.8 N at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The full stroke is 40 mm with a 10 mm adjustment window, allowing a usable extend range of 30-40 mm.
The M12x1.25 external threaded stop with lock nut limits the extend length without changing the piston area, so force remains identical to a standard ACQ. Fixed NBR bumpers decelerate the rod at travel ends, but this cylinder does not hold the load on air loss; use an external rod lock 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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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