Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-20
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-20 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 ACQJ40X150-20
The AirTAC ACQJ40X150-20 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 130 mm up to the full 150 mm stroke directly on the machine, while the retract stroke remains completely unaffected. Because the piston area stays constant, output force equals a standard ACQ of this bore.
This unit delivers 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. It features a 16 mm piston rod, a PT1/8 port, and fixed elastomer bumpers at both ends for end-of-stroke deceleration. As a long-stroke made-to-order variant exceeding the 100 mm standard maximum, it provides extra reach while retaining the compact body profile.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-20 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-20 |
|---|---|
| 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 ACQJ40X150-20
| 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 ACQJ40X150-20 Is Used
Machining Fixture Stops
Dial in the exact extend position during product-changeover on CNC machining fixtures without swapping out cylinder hardware.
Extended-Reach Clamping
Apply precise clamping force across a wider 150 mm gap, using the external stop to compensate for varying material thicknesses.
Carton Forming Adjustments
Set trial end positions for packaging folding arms, ensuring crisp carton seals by tweaking the 130-150 mm extend range on-site.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-20 the Right Cylinder?
If you need less push force, the adjacent 32 mm bore yields 402.1 N at 0.5 MPa, whereas stepping up to the 50 mm bore provides 981.8 N. A fixed-stroke ACQ40 is sufficient if your end position never varies. When ordering this adjustable model, confirm the 40 mm bore, 150 mm full stroke, 20 mm adjuster window, female rod-end thread, and whether you require a magnet for sensor tracks.
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 ACQJ40X150-20 FAQ
The usable extend range is 130-150 mm (150 mm full stroke minus up to 20 mm). It provides 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa.
The external M12x1.25 threaded stop with a lock nut limits how far the rod extends, shortening the stroke length only. The force remains identical to a standard ACQ because the piston area is unchanged, and fixed elastomer bumpers handle end-of-stroke deceleration.
Authorized Export Seller
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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