Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-30S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 150mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke150 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-30S
The AirTAC ACQJ125X150-30S is a double-acting, single-rod JIS compact cylinder engineered for big-bore tasks, featuring an external threaded stop with a lock nut that restricts the EXTEND end position. This mechanism allows you to fine-tune the extend stroke directly on your machinery without swapping components. With a full stroke of 150mm and a 30mm adjustment window, the usable extend range spans 120 to 150mm, while the retract stroke remains completely unaffected.
Because the internal piston area stays constant, the output force remains identical to a standard ACQ of the same bore, delivering 6135.9N push and 5733.8N pull at 0.5MPa. The unit incorporates fixed elastomer NBR bumpers at each end for end-of-stroke deceleration rather than adjustable air cushions. Equipped with a built-in piston magnet (-S), it supports both reed and solid-state electronic switches via its integrated sensor grooves.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-30S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 150 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 ACQJ125X150-30S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×150 | 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 ACQJ125X150-30S Is Used
Heavy Press Tonnage Calibration
Dial in the exact extend endpoint during trial press cycles on large metal-forming equipment, preventing over-travel without machining new spacer blocks.
Automated Pallet Changeover
Shift the extend stop to accommodate different pallet widths on CNC machining centers, enabling rapid product changeover with a simple lock-nut adjustment.
Variable-Depth Bending Jigs
Adjust the material bend depth on the fly for custom fabrication fixtures, relying on the 120-150mm usable range to set precise forming limits.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-30S the Right Cylinder?
If you need slightly less thrust, the adjacent ACQJ100 bore yields 3927.0N push at 0.5MPa, whereas stepping up to the ACQJ140 provides 7696.9N push. Choose this 125mm bore when your application demands roughly 6135.9N of push force alongside variable extend end-points. If the extend position never needs alteration, a fixed-stroke ACQ cylinder is sufficient. When ordering, verify the 125mm bore, 150mm full stroke, 30mm window, the -S magnet option, and the default female M22x2.5 rod-end thread with PT3/8 ports.
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 ACQJ125X150-30S FAQ
The usable extend range is 120-150mm (150mm full stroke minus the 30mm window). The force is identical to a standard ACQ: 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 external adjuster thread is M27x2.0.
An external threaded screw with a lock nut physically limits how far the rod extends, altering stroke length only without changing the piston area or force. The cylinder uses fixed NBR bumpers for deceleration, not adjustable air cushions. A plain compact cylinder does not hold its load on air loss; the rod will drift, so an external rod lock or pilot-operated check valve is recommended for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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