Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-30S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke175 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-30S
The AirTAC ACQJ140X175-30S is a double-acting, single-rod JIS compact cylinder featuring an external threaded stop with a lock nut on the rod-end side. This mechanism limits the extend travel, allowing you to fine-tune the forward end position directly on the machine. With a full stroke of 175 mm and a 30 mm adjustment window, the usable extend range spans 145 mm to 175 mm. The retract stroke remains completely unaffected by this external stop.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore. At 0.5 MPa, it provides 7696.9 N of push force and 7294.8 N of pull force. This big-bore compact variant includes a -S magnet for position sensing and uses a fixed elastomer bumper for end-of-stroke deceleration. The standard port size is PT3/8, and the piston rod measures 32 mm with a female M22x2.5 end thread.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-30S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 175 mm |
| Adjuster thread | M27×2.0 |
| Port size | PT3/8 |
| 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 | M22×2.5 (F) / M30×1.5 (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 (Ø140mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 7697 N | 7295 N |
| 0.7 MPa | 10776 N | — |
| Max (@1.0 MPa) | 1570 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-30S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-30S Is Used
Press Tonnage Trials
Dial in the exact 145 to 175 mm extend reach during stamping press setup to test different material thicknesses without machining new spacers.
Large Fixture Changeover
Shift the extend stop rapidly when swapping heavy machining fixtures on an automated line, cutting product changeover time significantly.
Heavy Assembly Positioning
Establish precise end stops for pushing large components into housings, ensuring consistent seating without over-traveling the 32 mm rod.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-30S the Right Cylinder?
If you need slightly less push force at 0.5 MPa, the 100 mm bore yields 3927.0 N push and 3524.8 N pull, whereas the 160 mm bore offers 10053.1 N push and 9424.8 N pull for heavier demands. A fixed-stroke ACQ is sufficient if your end position never requires on-the-fly shifting. When ordering this adjustable unit, confirm the 140 mm bore, 175 mm full stroke, 30 mm window, the -S magnet, and the female M22x2.5 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-30S FAQ
The usable extend range is 145-175 mm (175 mm full stroke minus the 30 mm window). Force is identical to a standard ACQ: 7696.9 N push and 7294.8 N pull at 0.5 MPa, 10775.7 N push at 0.7 MPa, and a maximum push of 1570 kgf at 1.0 MPa.
The M27x2.0 external threaded stop with a lock nut limits forward travel only; the retract stroke is unaffected. Since the piston area remains the same, force is unchanged. The cylinder uses a fixed elastomer bumper at each end for deceleration, and the -S magnet works with reed or electronic solid-state switches.
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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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