Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-10B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-10B 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 ACQJ40X175-10B
The ACQJ40X175-10B is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend range from 165 to 175 mm on the machine without changing parts, while the retract stroke remains unaffected. This long-stroke variant exceeds the 100 mm standard maximum for a 40 mm bore and is supplied as a made-to-order option.
Because the piston area stays the same, the force is identical to a standard ACQ of this bore, delivering 628.3 N push and 527.8 N pull at 0.5 MPa. The unit includes a male M14x1.5 rod-end thread for direct load coupling, a PT1/8 port, and a fixed NBR elastomer bumper at each end for end-of-stroke deceleration. It operates at 30-500 mm/s and the body retains sensor grooves, though this specific SKU ships without a piston magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-10B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-10B |
|---|---|
| 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 ACQJ40X175-10B
| 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 ACQJ40X175-10B Is Used
Product Changeover Stops
Dial in the extend position from 165 to 175 mm on packaging lines when shifting between carton sizes, avoiding the need to swap out physical hard stops.
Trial End Positions
Set precise clamping depth on CNC machining fixtures during first-article runs, allowing incremental adjustments without disassembling the tooling.
Setup-Varying Fixtures
Accommodate varying part heights on automated assembly presses by tuning the extend stroke on the machine until the contact force is correct.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X175-10B the Right Cylinder?
When sizing this 40 mm bore actuator, 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. If your extend position never varies, a fixed-stroke ACQ cylinder is sufficient and more compact. To order correctly, confirm the 40 mm bore, 175 mm full stroke, 10 mm adjuster window, the male M14x1.5 rod thread, and that no magnet is required.
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 ACQJ40X175-10B FAQ
The force is identical to a standard ACQ of the same bore: 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, and the external adjuster provides a 10 mm window, giving a usable extend range of 165-175 mm.
The external M12x1.25 threaded stop with lock nut limits only the extend stroke length; it does not change the piston area or force. The cylinder uses a fixed NBR elastomer bumper at each end for deceleration, not an adjustable air cushion. Note that a plain ACQ-type cylinder does not hold its load on air loss, so an external rod lock or pilot-operated check valve is recommended for fail-safe holding.
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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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