Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-50SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-50SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke125 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-50SB
The ACQJ160X125-50SB is a double-acting JIS compact cylinder featuring a 160mm bore and a 125mm full stroke. An external M36x2.0 threaded stop with a lock nut lets you fine-tune the extend end position on the machine itself. You get a usable extend range of 75-125mm, while the retract stroke remains completely unaffected.
Because the piston area stays constant, output force is identical to a standard ACQ of this size. Expect 10053.1N push and 9424.8N pull at 0.5MPa. This big-bore variant includes a male M36x1.5 rod end for direct load coupling, a piston magnet for position sensing, and fixed NBR elastomer bumpers at each end to absorb impact energy.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-50SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-50SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 125 mm |
| Adjuster thread | M36×2.0 |
| 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 | M24×3.0 (F) / M36×1.5 (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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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 ACQJ160X125-50SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | 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 ACQJ160X125-50SB Is Used
Heavy Press Tonnage Setup
Dial in the exact 75-125mm extend reach during heavy press commissioning without machining new spacers or swapping components.
Automated Welding Changeover
Shift the rod extension endpoint on the fly when adapting robotic welding fixtures for different automotive chassis dimensions.
Large Mold Trial Positions
Test varying clamping depths on large injection molds safely, relying on the fixed NBR bumper for end-of-stroke deceleration.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-50SB the Right Cylinder?
Selecting this 160mm bore actuator provides massive thrust up to 2050kgf at 1.0MPa. If your application requires less force, stepping down to a 140mm bore yields 7696.9N push at 0.5MPa, whereas moving up is impossible as this is the largest big-bore compact option. A fixed-stroke ACQ suffices if your end position never varies. Confirm ordering essentials: 160mm bore, 125mm full stroke, 50mm adjuster window, S magnet, and 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-50SB FAQ
It provides 10053.1N push and 9424.8N pull at 0.5MPa, 14074.3N push at 0.7MPa, and a maximum push of 2050kgf at 1.0MPa. The 50mm adjustment window allows a usable extend range of 75-125mm.
No, the external M36x2.0 stop changes stroke length only, leaving force identical to a standard ACQ. Note that a plain compact cylinder drifts on air loss; use an external rod lock for fail-safe holding. The fixed elastomer bumper decelerates the load near stroke end.
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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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