Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-10B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-10B 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 ACQJ40X30-10B
The ACQJ40X30-10B is a double-acting JIS compact cylinder featuring a 40mm bore and a 30mm full stroke. An external threaded stop with a lock nut limits the rod extension, providing a usable extend range of 20-30mm. You can fine-tune the forward end position directly on your machinery without swapping components. The retract stroke remains completely unaffected.
Because the adjuster only alters travel length, the piston area stays the same, meaning force is identical to a standard ACQ of this size. This version includes a male M14x1.5 rod-end thread for direct load coupling and uses a PT1/8 port. It relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-10B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-10B |
|---|---|
| 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 ACQJ40X30-10B
| 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 ACQJ40X30-10B Is Used
Machining Fixture Stops
Dial in the exact clamping extension on a CNC machining center when raw material thickness varies slightly between batches.
Assembly Line Changeover
Rapidly reposition the extend end stop on an automated assembly press when switching between different product variants.
Carton Forming Tensioning
Adjust the push depth on a packaging line to accommodate various carton sizes without replacing the cylinder body.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X30-10B the Right Cylinder?
When sizing this 40mm bore unit, note it pushes 628.3N and pulls 527.8N at 0.5MPa. If your application requires less force, stepping down to a 32mm bore yields 402.1N push, while moving up to a 50mm bore provides 981.8N. A fixed-stroke ACQ cylinder is sufficient if your end position never varies. To order this adjustable variant correctly, confirm the 40mm bore, 30mm full stroke, 10mm adjuster window, the male rod thread, and note that no magnet is installed.
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 ACQJ40X30-10B FAQ
The usable extend range is 20-30mm. Force is identical to a standard ACQ: push is 628.3N and pull is 527.8N at 0.5MPa, push is 879.6N at 0.7MPa, and maximum push is 128kgf at 1.0MPa.
The M12x1.25 external threaded stop with lock nut physically limits rod extension, changing stroke length without altering piston area or force. The cylinder relies on fixed elastomer bumpers and will not hold a load on air loss; use an external rod lock for fail-safe holding.
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Covers non-human-caused product damage.
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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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