Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30B 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 ACQJ40X30-30B
The AirTAC ACQJ40X30-30B is a double-acting JIS compact cylinder featuring a male-thread piston rod (M14x1.5) for direct load coupling. It incorporates an external threaded stop with a lock nut on the extend side, allowing you to fine-tune the stroke down to a 0-30mm usable range from the 30mm full stroke. The retract movement remains completely unaffected by this mechanism.
Because the adjuster solely limits travel without altering piston area, output force stays identical to a standard ACQ equivalent. You get 628.3N push and 527.8N pull at 0.5MPa, rising to 879.6N push at 0.7MPa. The unit runs on PT1/8 porting, handles pressures from 0.15 to 1.0MPa, and relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30B |
|---|---|
| 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 ACQJ40X30-30B
| 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 ACQJ40X30-30B Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC machining center during initial setup or when swapping part families.
Product Changeover Guides
Reposition the extend limit on packaging lines to handle different carton sizes without swapping out cylinder hardware.
Assembly Press Trials
Test varying insertion depths on electronic component presses before locking the nut for permanent production runs.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-30B the Right Cylinder?
If your setup requires less extend travel, the ACQJ32 bore offers 402.1N push at 0.5MPa, whereas stepping up to the ACQJ50 provides 981.8N. A non-adjustable ACQ40 cylinder is perfectly adequate if your end position never varies. When ordering this version, verify the 40mm bore, 30mm base stroke, 30mm adjustment window, the male M14x1.5 rod thread, and note that the -S magnet is omitted here.
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 ACQJ40X30-30B FAQ
It provides 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 usable extend range is 0-30mm (30mm full stroke minus the 30mm adjustment window).
The external M12x1.25 threaded stop with lock nut limits extend travel without changing piston area, so force remains identical to a standard ACQ. The fixed elastomer bumper decelerates the load near stroke end, but the cylinder will not hold its load on air loss; use an external rod lock for fail-safe holding.
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Genuine AirTAC parts produced by AirTAC factory.
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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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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