Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75 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 ACQJ40X150-75
The ACQJ40X150-75 is a double-acting, single-rod JIS compact cylinder engineered for applications requiring a variable extend end position. It features an external M12x1.25 threaded stop with a lock nut, allowing you to fine-tune the extend stroke anywhere from 75 mm up to the full 150 mm directly on the machine. The retract stroke remains completely unaffected. Because the piston area is unchanged, output force is identical to a standard ACQ of this bore.
This unit is a made-to-order long-stroke variant, as the 150 mm travel exceeds the 100 mm standard maximum for a 40 mm bore. It delivers 628.3 N of push force and 527.8 N of pull force at 0.5 MPa, operating between 0.15 and 1.0 MPa. The body includes sensor grooves for adding reed or solid-state switches, though this specific SKU ships without a magnet. Deceleration is handled by fixed NBR elastomer bumpers at both ends rather than adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75 |
|---|---|
| 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 ACQJ40X150-75
| 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 ACQJ40X150-75 Is Used
CNC Tooling Changeover
Dial in the extend stop from 75 to 150 mm when swapping machining fixtures on a CNC lathe, ensuring the pusher meets the new part geometry without remounting hardware.
Carton Flap Folding
Adapt a packaging line on the fly for varying box depths by tweaking the external M12x1.25 stop, maintaining precise 628.3 N clamping force across different product runs.
Extended Reach Ejectors
Utilize the 150 mm long-stroke travel to eject parts from deep press beds, using the 75 mm adjustment window to compensate for different die thicknesses during trial setups.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75 the Right Cylinder?
Selecting this 40 mm bore provides a 628.3 N push at 0.5 MPa, sitting neatly between the 32 mm bore (402.1 N push) and the 50 mm bore (981.8 N push). If your extend position never varies, a fixed-stroke ACQ cylinder is simpler and avoids the adjuster overhang. When ordering this adjustable version, confirm the 150 mm full stroke, the 75 mm window, the default female M8x1.25 rod-end thread, the PT1/8 port, and whether you require the S magnet option for switch 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 ACQJ40X150-75 FAQ
This 40 mm bore cylinder delivers a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa, with a push of 879.6 N at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The full stroke is 150 mm, but the external adjuster provides a 75 mm window, allowing the usable extend range to be set anywhere from 75 mm to 150 mm.
An external M12x1.25 threaded stop and lock nut mechanically limits how far the rod extends, shortening the stroke without changing the piston area or force output. The cylinder relies on fixed NBR elastomer bumpers for end-of-stroke deceleration, not adjustable air cushions. Because it is a standard pneumatic cylinder, it will not hold a load if air pressure is lost; use an external rod lock or pilot-operated check valve for fail-safe holding.
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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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