Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10SB 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 ACQJ125X30-10SB
The AirTAC ACQJ125X30-10SB is a double-acting, single-rod JIS compact cylinder from the big-bore range, featuring an external threaded stop with a lock nut that limits the EXTEND end position. You get a usable extend range of 20-30 mm, meaning the full 30 mm stroke can be shortened by up to 10 mm directly on the machine without swapping parts. The RETRACT stroke remains completely unaffected.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 6135.9 N push at 0.5 MPa. This SB configuration includes a male M30x1.5 piston rod end for direct load coupling and a built-in magnet (-S) compatible with reed or solid-state switches. It uses a PT3/8 port, an M27x2.0 adjuster thread, and fixed elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10SB |
|---|---|
| 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 ACQJ125X30-10SB
| 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 ACQJ125X30-10SB Is Used
Press Tooling Changeover
Adapts the extend end position during product changeovers on large metal stamping presses, allowing operators to set precise 20-30 mm strokes for varying die heights without replacing the cylinder.
Heavy Fixture Calibration
Fine-tunes clamping reach on large automated welding fixtures. The external stop lets operators dial in the exact extend position during initial setup or fixture recalibration.
Material Handling Stops
Acts as an adjustable end stop for heavy pallet positioning conveyors. The 10 mm window accommodates different pallet thicknesses while maintaining the full 6135.9 N push force.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10SB the Right Cylinder?
When sizing this big-bore 125 mm unit, consider the next smaller bore (100 mm yields 3927.0 N push @0.5 MPa) or the larger 140 mm bore (7696.9 N push @0.5 MPa) to match your force requirements. If your application requires a fixed extend end position every cycle without on-machine tuning, a standard ACQ cylinder will suffice. To order this adjustable variant correctly, confirm the 125 mm bore, 30 mm full stroke, 10 mm adjust window, S magnet option, 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 ACQJ125X30-10SB FAQ
The usable extend range is 20-30 mm (a 30 mm full stroke shortened by up to a 10 mm window). Force is identical to a standard ACQ: 6135.9 N push and 5733.8 N pull @0.5 MPa, 8590.3 N push @0.7 MPa, with a maximum push of 1251 kgf @1.0 MPa.
The external M27x2.0 threaded stop with lock nut limits the extend stroke length only, leaving retract unaffected and preserving the fixed elastomer bumper for deceleration. The -S magnet works with reed or electronic switches, and the male M30x1.5 rod couples directly to the load.
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Related AirTAC ACQJ Compact Cylinders
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