Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 150mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke150 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75S
The ACQJ40X150-75S is a double-acting JIS compact cylinder featuring a 150mm stroke and a 40mm bore. An external M12x1.25 threaded stop with a lock nut restricts the extend end position, providing a usable forward range of 75 to 150mm. The retract stroke remains completely unaffected by this adjustment. This unit includes a built-in piston magnet (-S) for position sensing.
Because the adjuster solely limits travel length without altering piston area, output force matches a standard ACQ exactly. Expect 628.3N push and 527.8N pull at 0.5MPa, or 879.6N push at 0.7MPa. This 150mm variant is a made-to-order long-stroke configuration, exceeding the 100mm standard maximum for this bore. It retains the standard NBR fixed elastomer bumper and PT1/8 porting.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 150 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 ACQJ40X150-75S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 ACQJ40X150-75S Is Used
Variable Length Stopper
Adjusting the extend stop on a packaging conveyor to accommodate different carton depths without swapping out the entire actuator assembly.
Product Changeover Pins
Fine-tuning the extension length on a machining fixture during a product family changeover to hit new datum points rapidly.
Prototype Positioning
Dialing in trial end positions on a test rig by shortening the forward stroke up to 75mm until the optimal kinematic motion is found.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75S the Right Cylinder?
Choosing this bore provides substantial power, stepping up from the 32mm option (402.1N push at 0.5MPa) or stepping down from the 50mm size (981.8N push at 0.5MPa). If your equipment never requires end-position tuning, a fixed-stroke ACQ cylinder will suffice. When ordering this adjustable model, confirm the 40mm bore, 150mm full stroke, 75mm window, the required -S magnet, 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 ACQJ40X150-75S 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 full stroke is 150mm with a 75mm window, allowing an adjustable extend range of 75-150mm.
No, the adjuster changes stroke length only, so force remains identical to a standard ACQ. The retract stroke is unaffected. The cylinder uses fixed elastomer bumpers rather than adjustable air cushions, and the -S magnet works with reed or electronic switches.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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