Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 45mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke45 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10B
The AirTAC ACQJ40X45-10B is a double-acting JIS compact cylinder with a 40mm bore and a 45mm full stroke. It features an external M12x1.25 threaded stop with a lock nut that limits the extend end position, providing a usable extend range of 35-45mm. The retract stroke remains unaffected by this adjustment. Because the piston area is unchanged, output force is identical to a standard ACQ of this bore.
This variant includes a male M14x1.5 piston rod end (-B) for direct load coupling and uses a PT1/8 port. It operates at pressures from 0.15 to 1.0 MPa with a speed range of 30-500 mm/s. The body incorporates fixed elastomer bumpers at each end and includes magnetic-switch grooves, though this specific SKU ships without a magnet. The compact C-clip body design saves space without requiring tie rods.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 45 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 ACQJ40X45-10B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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 ACQJ40X45-10B Is Used
Machining Fixture Stops
Dial in the exact 35-45mm extend position on a CNC machining fixture to accommodate raw part tolerances without swapping cylinder hardware.
Packaging Changeover
Rapidly reconfigure product pusher end stops on a packaging line by turning the external adjuster screw during format size changes.
Assembly Press Trials
Safely test intermediate extend end positions on an assembly press before locking the nut and committing to a final fixed stroke length.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10B the Right Cylinder?
When sizing this 40mm bore cylinder, the 0.5MPa push force is 628.3N. If less power is needed, the 32mm bore delivers 402.1N push; for heavier loads, the 50mm bore provides 981.8N push. A fixed-stroke ACQ is sufficient if your extend end position never requires field adjustments. Confirm ordering essentials: 40mm bore, 45mm full stroke, 10mm adjustment window, male rod thread (-B), and no magnet. Note that a plain compact cylinder does not hold its load on air loss; for fail-safe holding, specify an external rod lock or pilot-operated check valve.
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 ACQJ40X45-10B FAQ
The usable extend range is 35-45mm (45mm full stroke minus the 10mm adjustment window). 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.
An external M12x1.25 threaded screw with a lock nut mechanically limits the extend stroke length without altering piston area, so force remains unchanged. The cylinder uses fixed elastomer bumpers rather than adjustable air cushions. While the body has sensor grooves, this specific model ships without a magnet.
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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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