Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 30mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke30 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30
The AirTAC ACQJ40X30-30 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend stroke. You can fine-tune the rod extension on the machine across a 0 to 30 mm usable range without changing parts, while the retract stroke remains completely unaffected. The adjuster mechanism alters stroke length only, so output force stays identical to a standard ACQ of this 40 mm bore.
Operating pressure spans 0.15 to 1.0 MPa, and the body incorporates fixed elastomer bumpers at each end for end-of-stroke deceleration. This specific configuration ships with a 16 mm piston rod, a PT1/8 port, and a female M8x1.25 rod-end thread. The body retains magnetic-switch grooves for adding sensors later, although this unit does not include a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 30 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 ACQJ40X30-30
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 ACQJ40X30-30 Is Used
Machining Fixture Stops
Dial in the exact extend position within the 0 to 30 mm window when clamping raw castings of varying dimensions on a CNC milling machine.
Carton Forming Changeover
Quickly alter the push-out depth for different box sizes on a packaging line using the external M12x1.25 stopper nut instead of swapping cylinders.
Assembly Press Trials
Test multiple engagement depths for a press-fit pin operation, finding the optimal end point before locking the adjuster nut in place.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30 the Right Cylinder?
Selecting this 40 mm bore yields a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. If your application requires less force, dropping down to a 32 mm bore provides 402.1 N of push, whereas stepping up to a 50 mm bore increases push output to 981.8 N. A fixed-stroke ACQ cylinder is sufficient if your end position never needs adjustment. When ordering, confirm the 40 mm bore, 30 mm full stroke, 30 mm adjuster window, female rod thread, and that no magnet is required.
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 ACQJ40X30-30 FAQ
At 0.5 MPa it provides 628.3 N of push force and 527.8 N of pull force, and 879.6 N of push at 0.7 MPa. The maximum push is 128 kgf at 1.0 MPa. The full stroke is 30 mm with a 30 mm adjustment window, giving a usable extend range of 0 to 30 mm.
No, the external stop limits extension travel only, meaning force is identical to a standard ACQ cylinder. The cylinder uses fixed NBR elastomer bumpers at both ends for deceleration rather than adjustable air cushions. Also, this model lacks a piston magnet, though the body retains sensor grooves for adding reed or solid-state switches.
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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