Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10S 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 ACQJ125X30-10S
The AirTAC ACQJ125X30-10S is a double-acting, JIS compact cylinder from the big-bore range, featuring an external threaded stop with a lock nut that limits the extend end position. This adjuster allows you to fine-tune the usable extend stroke from 20 mm up to the full 30 mm directly on the machine without swapping parts, while the retract stroke remains completely unaffected. The adjuster features an M27x2.0 thread.
Because the piston area is unchanged, the force output remains identical to a standard ACQ of this bore, delivering 6135.9 N of push force at 0.5 MPa. The cylinder uses a PT3/8 port, a 32 mm piston rod, and a fixed elastomer bumper at each end for end-of-stroke deceleration. The built-in magnet (-S) supports both reed and electronic solid-state switches.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10S |
|---|---|
| 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 ACQJ125X30-10S
| 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 ACQJ125X30-10S Is Used
Press Tooling Changeover
Accommodates varying material thicknesses in a large stamping press by quickly dialing back the extend stop by up to 10 mm without machining new spacer blocks.
Heavy Fixture Positioning
Sets precise end positions for large machining clamps, allowing operators to tweak the 20-30 mm extend range on the floor to suit different part geometries.
Large Crate Handling
Adjusts the pusher stroke on a heavy-duty packaging line to safely seat oversized containers without overtravel, relying on the full 6135.9 N force.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X30-10S the Right Cylinder?
When sizing this big-bore 125 mm unit, consider the ACQJ100 if your load requires less force, providing 3927.0 N push at 0.5 MPa, or step up to the ACQJ140 which yields 7696.9 N push at 0.5 MPa for heavier demands. A fixed-stroke ACQ is sufficient if your extend end position never needs alteration. To order, confirm the 125 mm bore, 30 mm full stroke, 10 mm adjustable window, the -S magnet option, and the default 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 ACQJ125X30-10S FAQ
At 0.5 MPa, the push force is 6135.9 N and the pull force is 5733.8 N. At 0.7 MPa, the push force is 8590.3 N. The maximum push force is 1251 kgf at 1.0 MPa. The usable extend range is 20-30 mm, adjustable via a 10 mm window, while the retract stroke stays fixed at 30 mm.
No, the adjuster only changes the extend stroke length, not the piston area, so force is identical to a standard ACQ. The cylinder relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion, so external shock absorbers may be needed for high-energy loads. Note that a standard ACQ does not hold its load on air loss; use an external rod lock for fail-safe holding.
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