Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-20B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-20B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke175 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-20B
The ACQJ32X175-20B is a double-acting JIS compact cylinder featuring a 175mm extended stroke made-to-order length, which surpasses the standard 100mm maximum for a 32mm bore. An external threaded stop with a lock nut on the rod-end side restricts how far the piston extends. You can fine-tune the extend end position across a 155 to 175mm usable range directly on your machinery without swapping components. The retract distance remains completely unaffected by this mechanism.
Because the piston area stays constant, output force equals that of a standard ACQ equivalent, delivering 402.1N push and 301.6N pull at 0.5MPa. This unit includes the male-thread rod end option (M14x1.5) for direct load coupling. It runs on PT1/8 ports, utilizes a fixed NBR elastomer bumper at each end for end-of-stroke deceleration, and operates at speeds between 30 and 500mm/s. Note that it ships without a sensor magnet, though the body retains magnetic-switch grooves for your own additions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-20B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-20B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 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 (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 ACQJ32X175-20B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | 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 ACQJ32X175-20B Is Used
Fixture Setup Variation
Dial in the exact extend stop from 155 to 175mm on CNC machining fixtures when part dimensions change, preventing the need to machine new hard stops.
Product Changeover Stops
Modify the extend end position on packaging lines during format conversions using the external M12x1.25 adjuster screw to accommodate different carton widths rapidly.
Trial End Positions
Test prototype end positions on assembly machinery safely, tweaking the extend limit by up to 20mm without disassembling the cylinder from its mounting plate.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-20B the Right Cylinder?
When sizing this actuator, stepping down to a 25mm bore yields 245.4N push at 0.5MPa, while stepping up to a 40mm bore provides 628.3N push. If your application never requires altering the extend limit, a fixed-stroke ACQ32 cylinder will achieve the same force more economically. For this adjustable variant, verify your ordering essentials: 32mm bore, 175mm full stroke, 20mm adjustment window, male M14x1.5 rod thread, and no magnet. Keep in mind that for load holding on air loss, a plain ACQ-type cylinder drifts; you must add an external rod lock or pilot-operated check valve for fail-safe positioning.
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 ACQJ32X175-20B FAQ
This long-stroke 32mm bore cylinder has a 175mm full stroke with a 20mm adjustable window, giving a usable extend range of 155-175mm. It generates 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa.
No, the external threaded stop only limits the extend length; the retract stroke remains fixed, and the force is identical to a standard ACQ because the piston area is unchanged. Deceleration is handled by a fixed elastomer bumper, so for high-energy loads, consider adding an external shock absorber.
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Related AirTAC ACQJ Compact Cylinders
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