Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 45mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke45 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40SB
The AirTAC ACQJ32X45-40SB is a double-acting JIS compact cylinder featuring an external extend-stroke adjuster. A threaded stop with a lock nut lets you set the extend end position anywhere in a 5 to 45 mm usable range, shortening the 45 mm full stroke by up to 40 mm. The retract stroke remains completely unaffected. Because the piston area is unchanged, output force is identical to a standard ACQ of this bore, delivering 402.1 N push at 0.5 MPa.
This unit includes a male M14x1.5 rod end for direct load coupling and a PT1/8 port. It carries the -S magnet for reed or solid-state switches, plus a fixed NBR elastomer bumper at each end for end-of-stroke deceleration. Operating pressure spans 0.15 to 1.0 MPa, and the adjuster mechanism uses an M12x1.25 thread.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 ACQJ32X45-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | 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 ACQJ32X45-40SB Is Used
Machining Fixture Stops
Dial in the exact extend position for varying part heights on a CNC lathe without machining new stop collars.
Carton Changeover
Quickly reposition the extend limit to accommodate different box sizes on a packaging line during product runs.
Press Trial Positions
Test multiple clamping depths on a metal-forming press by shifting the external stop nut within the 5-45 mm window.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40SB the Right Cylinder?
Choosing this 32 mm bore yields 402.1 N push and 301.6 N pull at 0.5 MPa. If your application needs less force, dropping to a 25 mm bore provides 245.4 N push, while stepping up to a 40 mm bore offers 628.3 N push. Select this adjustable model when you need on-machine extend tuning; if the end position is fixed, a standard ACQ cylinder suffices. Confirm your ordering details: 32 mm bore, 45 mm full stroke, 40 mm window, the -S magnet, and the -B male rod thread.
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 ACQJ32X45-40SB FAQ
It has a 32 mm bore, a 45 mm full stroke, and a 40 mm adjustment window, giving a usable extend range of 5 to 45 mm. Force is identical to a standard ACQ: 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The port is PT1/8.
The external M12x1.25 threaded stop and lock nut limit only the extend stroke; the retract stroke and piston area remain unchanged, so force is not reduced. Fixed NBR bumpers decelerate the rod near stroke ends, but a plain cylinder does not hold a load on air loss. For fail-safe holding, use an external rod lock or pilot-operated check valve.
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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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Related AirTAC ACQJ Compact Cylinders
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