Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-10S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke125 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-10S
This double-acting single-rod ACQJ125X125-10S cylinder brings big-bore JIS compact power to applications needing exact extend tuning. It features an external M27x2.0 threaded stop with a lock nut, allowing you to set the extend stroke anywhere from 115 mm up to the full 125 mm. The retract stroke remains completely unaffected by this adjustment. A built-in magnet (-S) is included for position sensing.
Because the piston area is unchanged, force output is identical to a standard ACQ of the same bore. You get 6135.9 N push and 5733.8 N pull at 0.5 MPa, scaling to a maximum 1251 kgf push at 1.0 MPa. The unit relies on a fixed NBR elastomer bumper at each end for end-of-travel deceleration. For heavy dynamic loads, add an external shock absorber, as this cylinder does not actively hold loads on air loss.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-10S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 125 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 ACQJ125X125-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×125 | 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 ACQJ125X125-10S Is Used
Heavy Press Tonnage Setup
Dial in the exact 115 to 125 mm extend position during heavy press setup to accommodate varying material thicknesses without machining new spacers.
Automotive Welding Fixture Stops
Modify the end-of-stroke stop on an automotive welding line to adapt to different chassis profiles quickly during model changeovers.
Large Pallet Forming Machines
Fine-tune the extend limit on large pallet forming equipment to test new flap folding depths before finalizing the mechanical setup.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-10S the Right Cylinder?
When sizing this big-bore 125 mm unit, consider the adjacent options in the range. Stepping down to a 100 mm bore drops the 0.5 MPa push force to 3927.0 N, while stepping up to a 140 mm bore increases it to 7696.9 N. If your machine never requires extend-position tweaks, a fixed-stroke ACQ125X125 will suffice and saves adjustment time. To order this adjustable version correctly, confirm the 125 mm bore, the 125 mm full stroke, the 10 mm adjustment window, the -S magnet option, and the default 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 ACQJ125X125-10S FAQ
This model has a 125 mm bore and a 125 mm full stroke. The adjustable extend window is 10 mm, giving a usable extend range of 115-125 mm. Force is identical to a standard ACQ: push is 6135.9 N and pull is 5733.8 N at 0.5 MPa, push is 8590.3 N at 0.7 MPa, and maximum push is 1251 kgf at 1.0 MPa.
An external M27x2.0 threaded stop with a lock nut mechanically limits the extend distance without altering the piston area, so force is unchanged. The cylinder uses fixed NBR elastomer bumpers at each end rather than adjustable air cushions. The included -S magnet works with both reed and solid-state electronic switches for position detection.
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1-Year Warranty
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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