Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-75S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-75S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke175 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-75S
The ACQJ125X175-75S is a double-acting JIS compact cylinder featuring a 125mm bore and a 175mm full stroke. An external threaded stop with a lock nut limits the extend end position, providing a usable forward range of 100 to 175mm. You can fine-tune the forward end point directly on your machinery without swapping components, while the retract stroke remains completely unaffected.
Because the adjuster only alters travel length and not piston area, output force stays identical to a standard ACQ of this size. At 0.5 MPa it delivers 6135.9N push and 5733.8N pull force. Built for big-bore compact duties up to 300mm, it includes a 32mm rod, PT3/8 porting, fixed NBR elastomer bumpers, and a piston magnet for electronic or reed sensors.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-75S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-75S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 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 ACQJ125X175-75S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | 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 ACQJ125X175-75S Is Used
Press Tooling Changeover
Adapt forming dies quickly on heavy presses by dialing the forward stop between 100 and 175mm to accommodate different material thicknesses without machining new spacers.
Large Assembly Fixture Stops
Set precise end positions for clamping varied automotive subassemblies, using the external M27x2.0 adjuster to tune the stroke exactly to the fixture dimensions.
Industrial Pallet Positioning
Handle oversized pallets in packaging lines by adjusting the pusher extension to match varying load widths, relying on the 1251kgf max push capacity for heavy goods.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-75S the Right Cylinder?
Selecting this 125mm bore yields 6135.9N push at 0.5MPa. If your application needs less force, stepping down to a 100mm bore provides 3927.0N push, whereas moving up to a 140mm bore offers 7696.9N. Choose this adjustable version when trial end positions or product changeovers require frequent on-site length tweaks; otherwise, a fixed-stroke ACQ is simpler. Confirm your ordering essentials: 125mm bore, 175mm full stroke, 75mm adjuster window, the S magnet, and female M22x2.5 rod-end 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 ACQJ125X175-75S FAQ
This 125mm bore model delivers 6135.9N push and 5733.8N pull at 0.5MPa, 8590.3N push at 0.7MPa, and a maximum push of 1251kgf at 1.0MPa. The full stroke is 175mm with a 75mm adjustment window, giving a usable extend range of 100 to 175mm.
The external M27x2.0 threaded stop with lock nut limits only the extend length, leaving the retract stroke unchanged. Force remains identical to a standard ACQ because piston area is unaltered. The cylinder uses fixed NBR elastomer bumpers, not adjustable air cushions. It will not hold a load on air loss, so use an external rod lock for fail-safe holding.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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