Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-30S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke75 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-30S
Operating as a double-acting JIS compact cylinder, the ACQJ125X75-30S uses an external M27x2.0 threaded stop with a lock nut to restrict how far the rod extends. You can trim the forward stroke by up to 30 mm, yielding a usable extend range of 45 to 75 mm. The return stroke remains completely unaffected by this adjustment.
Because the piston area stays constant, output force equals a standard ACQ of the same size, delivering 6135.9 N of push at 0.5 MPa. The 125 mm bore places this unit in the big-bore compact category, capable of up to 300 mm standard strokes. It features a fixed NBR elastomer bumper at each end and a built-in magnet (-S) for position sensing.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-30S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 75 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 ACQJ125X75-30S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×75 | 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 ACQJ125X75-30S Is Used
Press Tooling Setup
Dial in the exact extend stop during press tooling setup to accommodate varying material thicknesses without machining new spacers.
Heavy Fixture Changeover
Modify the extend end position rapidly during heavy fixture changeover on large automotive assembly lines for rapid model transitions.
Palletizing Positioning
Fine-tune the forward stroke on palletizing equipment to handle different pallet widths while maintaining the full 5733.8 N pull force.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-30S the Right Cylinder?
If you need less push force at 0.5 MPa, the 100 mm bore provides 3927.0 N; stepping up to the 140 mm bore yields 7696.9 N. Choose this adjustable model only if your machine requires frequent end-position tuning; otherwise, a fixed-stroke ACQ suffices. Confirm your ordering code with the 125 mm bore, 75 mm full stroke, 30 mm window, 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 ACQJ125X75-30S FAQ
It delivers 6135.9 N push and 5733.8 N pull at 0.5 MPa, 8590.3 N push at 0.7 MPa, and a maximum push of 1251 kgf at 1.0 MPa. The full stroke is 75 mm with a 30 mm window, allowing an adjustable extend range of 45 to 75 mm.
The M27x2.0 external threaded stop changes only the extend stroke length, leaving force identical to a standard ACQ. Deceleration relies on a fixed elastomer bumper, not an adjustable air cushion; for high-energy loads, add an external shock absorber or rod lock, as the cylinder will not hold loads on air loss.
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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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