Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke175 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100B
The ACQJ40X175-100B is a double-acting, single-rod JIS compact cylinder with an external extend-stroke adjuster. A threaded stop and lock nut let you fine-tune the extend end position on the machine without swapping parts. The usable extend range is 75 to 175 mm, while the retract stroke remains completely unaffected. This unit features a male M14x1.5 piston rod end that couples directly to your load.
Because the adjuster only limits travel and not piston area, force output is identical to a standard ACQ of the same bore. At 0.5 MPa it provides 628.3 N of push force and 527.8 N of pull force. The 175 mm stroke makes this a long-stroke, made-to-order variant exceeding the 100 mm standard maximum for this 40 mm bore. It includes fixed NBR elastomer bumpers at each end for end-of-travel deceleration, and the body features sensor grooves for adding reed or solid-state switches, though this specific SKU ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 175 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 ACQJ40X175-100B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 ACQJ40X175-100B Is Used
Machining Fixture Stops
Dial in the exact extend position to seat parts against a machining fixture, allowing rapid setup changes for different raw material widths.
Assembly Line Changeover
Adapt end-of-stroke pusher locations on an assembly conveyor during product family changeovers without fabricating new mechanical hard stops.
Packaging Flap Folding
Regulate the folding arm extension depth on a packaging line to accommodate varying carton profiles and prevent crushing the boxes.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-100B the Right Cylinder?
When sizing this actuator, consider the 40 mm bore against its neighbours. Dropping to a 32 mm bore yields 402.1 N push at 0.5 MPa, whereas stepping up to a 50 mm bore provides 981.8 N push. If your application requires a fixed 175 mm extend position and no on-machine tuning, a standard ACQ40X175 will suffice. For this adjustable unit, confirm the 40 mm bore, the 175 mm full stroke, the 100 mm adjustment window, the male M14x1.5 rod thread, and note that no internal 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 ACQJ40X175-100B FAQ
It provides 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The full stroke is 175 mm with a 100 mm adjustment window, yielding a usable extend range of 75 to 175 mm. The bore is 40 mm, the port is PT1/8, the male rod thread is M14x1.5, and the external adjuster thread is M12x1.25.
The external threaded stop with lock nut limits only the extend stroke length, meaning force remains identical to a standard ACQ since piston area is unchanged. The cylinder uses fixed NBR elastomer bumpers at each end rather than adjustable air cushions. This plain ACQ-type cylinder does not hold its load on air loss; for a fail-safe hold, you must add an external rod lock or pilot-operated check valve.
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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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