Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-100SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-100SB 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 ACQJ125X150-100SB
The ACQJ125X150-100SB is a double-acting JIS compact cylinder featuring a big-bore 125mm piston and a 150mm full stroke. An external M27x2.0 threaded stop with a lock nut limits the extend end position, giving a usable forward range of 50-150mm without swapping parts. The retract stroke remains completely unaffected. Operating pressure spans 0.15 to 1.0 MPa.
Because the adjuster only alters travel length, output force matches a standard ACQ of this size exactly. Push yields 6135.9N and pull yields 5733.8N at 0.5 MPa, with a maximum push capacity of 1251 kgf. This SB configuration includes a male M30x1.5 rod-end thread for direct load coupling and a built-in piston magnet compatible with reed or solid-state switches. Fixed NBR elastomer bumpers absorb end-of-stroke impact.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-100SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-100SB |
|---|---|
| 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 ACQJ125X150-100SB
| 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 ACQJ125X150-100SB Is Used
Press Tooling Changeover
Quickly dial in the exact extend stop during product family swaps on a heavy press line, utilizing the 50-150mm usable range to accommodate varying material thicknesses.
Large Fixture Positioning
Fine-tune the clamping reach on oversized welding fixtures without machining new spacers, relying on the 1251 kgf max push to secure heavy structural components.
Pallet Lift Stations
Adjust the lift height precisely for different pallet footprints, letting the male M30x1.5 rod couple directly to the lifting platform while the fixed bumper absorbs stopping energy.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-100SB the Right Cylinder?
Selecting this big-bore unit means needing substantial force alongside on-machine travel tuning. If 6135.9N push at 0.5 MPa is excessive, stepping down to a 100mm bore drops output to 3927.0N, whereas a 140mm bore raises it to 7696.9N. A fixed-stroke ACQ is adequate if your extend endpoint never requires field adjustment. When ordering this model, verify the 125mm bore, 150mm full stroke, 100mm adjustment 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 ACQJ125X150-100SB FAQ
At 0.5 MPa, push force is 6135.9N and pull force is 5733.8N. At 0.7 MPa, push is 8590.3N, with a maximum push of 1251 kgf at 1.0 MPa. The 150mm full stroke can be shortened by up to 100mm via the external stop, providing a usable extend range of 50-150mm.
No, altering travel length does not affect piston area, so force remains identical to a standard ACQ. The extend limit is set by an M27x2.0 external screw with a lock nut. Deceleration is handled by fixed NBR elastomer bumpers, not adjustable air cushions. Note that a plain cylinder drifts on air loss; use an external rod lock for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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