Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75B 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 ACQJ40X150-75B
The ACQJ40X150-75B is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend range from 75mm up to the full 150mm stroke directly on your machinery, while the retract stroke remains completely unaffected. Because the adjuster only alters travel length and not the piston area, the output force is identical to a standard ACQ of this bore.
This long-stroke made-to-order variant exceeds the 100mm standard maximum for a 40mm bore, extending up to 300mm. It delivers 628.3N of push force and 527.8N of pull force at 0.5MPa, operating via a PT1/8 port. The unit includes a male M14x1.5 piston rod end for direct load coupling, an M12x1.25 adjuster thread, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75B |
|---|---|
| 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 ACQJ40X150-75B
| 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 ACQJ40X150-75B Is Used
Machining Fixture Stops
Dial in the exact extend position on a CNC lathe bar puller or tailstock without machining new spacers, accommodating varying raw material lengths on the fly.
Product Changeover Diverters
Adjust the extend stroke rapidly during packaging line format changes to divert different carton sizes, ensuring precise routing without replacing the cylinder.
Assembly Press Testing
Probe and trial different end-stop depths on an electronic component insertion press, fine-tuning the 75 to 150mm travel window to prevent over-travel damage.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75B the Right Cylinder?
When sizing this actuator, consider the neighbouring bores: a 32mm bore provides 402.1N push force at 0.5MPa, while a 50mm bore yields 981.8N. The 40mm bore strikes a balance with 628.3N push and 879.6N at 0.7MPa. If your end-position never varies, a fixed-stroke ACQ cylinder suffices. To order this adjustable version correctly, confirm the 40mm bore, 150mm full stroke, 75mm window, the male rod thread (-B), and note that it ships without a sensor magnet (-S omitted).
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 ACQJ40X150-75B FAQ
This 40mm bore cylinder has a 150mm full stroke with a 75mm adjustable window, giving a usable extend range of 75-150mm. It provides 628.3N push and 527.8N pull force at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The port size is PT1/8.
The external M12x1.25 threaded stop with lock nut limits only the extend travel distance, meaning the output force remains identical to a standard ACQ because the piston area is unchanged. Deceleration is handled by fixed NBR elastomer bumpers at each end rather than adjustable air cushions. Note that this model lacks a -S magnet, though the body retains sensor grooves for adding reed or solid-state switches.
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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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