Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-40SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-40SB 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 ACQJ32X175-40SB
The ACQJ32X175-40SB is a double-acting JIS compact cylinder with a 175mm stroke, built as a made-to-order long-stroke variant since it exceeds the 100mm standard maximum for a 32mm bore. It features an external M12x1.25 threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend range from 135mm up to the full 175mm directly on your machine without swapping parts. The retract stroke remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore, yielding 402.1N push and 301.6N pull at 0.5 MPa. This unit includes a male M14x1.5 rod end for direct load coupling and an internal piston magnet. It uses fixed elastomer NBR bumpers at each end for end-of-stroke deceleration rather than adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-40SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-40SB |
|---|---|
| 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 ACQJ32X175-40SB
| 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 ACQJ32X175-40SB Is Used
Machining Fixture Stops
Dial in the extend position from 135 to 175mm on CNC machining fixtures to accommodate varying raw material lengths without fabricating new hard stops.
Product Changeover Diverter
Adjust the extend stroke on a packaging conveyor diverter to route different carton sizes on the fly, using the external M12x1.25 stopper to set the exact gap.
Assembly Press Trial
Test multiple extend end positions on an automated assembly press during prototype runs, locking the M14x1.5 male rod at the precise 135-175mm depth required.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X175-40SB the Right Cylinder?
When sizing this actuator, consider the neighbouring bores: a 25mm bore provides 245.4N push at 0.5 MPa, while a 40mm bore offers 628.3N push at 0.5 MPa. This 32mm bore provides 402.1N push and a maximum push of 82 kgf at 1.0 MPa. If your application never requires end-position adjustments, a fixed-stroke standard ACQ cylinder will suffice. For ordering, confirm the 32mm bore, 175mm full stroke, 40mm adjustable window, the S magnet for electronic or reed switches, 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 ACQJ32X175-40SB FAQ
This 32mm bore cylinder delivers 402.1N push and 301.6N pull at 0.5 MPa, 562.9N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 135-175mm, created by shortening the 175mm full stroke by up to the 40mm window.
The external M12x1.25 threaded stop with lock nut limits only the extend stroke length, leaving retract unaffected and keeping force identical to a standard ACQ. Deceleration relies on fixed elastomer bumpers, not adjustable air cushions. A plain compact cylinder does not hold its load on air loss, so add an external rod lock or pilot-operated check valve for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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