Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-30SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 30mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke30 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-30SB
The AirTAC ACQJ125X30-30SB is a big-bore JIS compact cylinder engineered for precise extend-end positioning. A 30 mm full stroke pairs with a 30 mm adjustment window, yielding a usable extend range of 0 to 30 mm. An external M27x2.0 threaded stop and lock nut restricts how far the rod travels out, letting you set the exact end position directly on the machine without changing hardware. The retract stroke remains completely unaffected.
Because the piston area stays constant, output force is identical to a standard ACQ of this bore, delivering 6135.9 N push at 0.5 MPa. The unit features a male M30x1.5 rod-end thread (-B) for direct load coupling and an integrated piston magnet (-S) for tracking. Fixed NBR elastomer bumpers at both ends provide end-of-stroke deceleration rather than adjustable air cushions.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-30SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 30 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 ACQJ125X30-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×30 | 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 ACQJ125X30-30SB Is Used
Press Tonnage Tryout
Dial in the exact clamping reach during stamping press setup, testing different material thicknesses without machining custom spacers.
Automotive Welding Fixtures
Alter electrode extension on robotic spot welding guns during vehicle model changeovers to accommodate new panel geometries.
Pallet Squaring Stops
Adjust the end stop position for varying pallet dimensions on a packaging line, ensuring precise square alignment before stretch wrapping.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-30SB the Right Cylinder?
This 125 mm bore generates 6135.9 N push and 5733.8 N pull force at 0.5 MPa, with a maximum push capacity of 1251 kgf at 1.0 MPa. Stepping down to the 100 mm bore yields 3927.0 N push, while the 140 mm bore offers 7696.9 N push. If the extend end position never requires on-the-fly tuning, a fixed-stroke ACQ cylinder suffices. When ordering, confirm the 125 mm bore, 30 mm full stroke, 30 mm adjustment window, PT3/8 port, male M30x1.5 rod thread, and the integrated magnet.
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 ACQJ125X30-30SB FAQ
The cylinder provides 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 30 mm with a 30 mm adjustment window, creating a usable extend range of 0 to 30 mm. The external adjuster features an M27x2.0 thread.
The adjuster changes stroke length only, so force remains identical to a standard ACQ. The fixed NBR elastomer bumpers decelerate the load near stroke end but do not function as adjustable air cushions. A plain ACQ cylinder will not hold a load if air pressure is lost; for fail-safe holding, install an external rod lock or pilot-operated check valve.
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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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