Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-30SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke125 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-30SB
The ACQJ160X125-30SB is a double-acting JIS compact cylinder featuring a 160 mm bore and a 125 mm full stroke. Equipped with a male M36x1.5 rod end, it incorporates an external M36x2.0 threaded stop with a lock nut. This mechanism restricts the forward extend travel, yielding a usable extension range of 95 to 125 mm. The return stroke remains completely unaffected by this adjustment. Because the piston area is unchanged, output force stays identical to a standard ACQ of this size, generating 10053.1 N of push force at 0.5 MPa.
This big-bore variant operates within the 0.15 to 1.0 MPa pressure range and includes a -S piston magnet compatible with reed or solid-state electronic switches. Fixed NBR elastomer bumpers at both ends decelerate the load near the stroke limits, meaning the cylinder does not inherently hold the load on air loss. For fail-safe load holding, an external rod lock or pilot-operated check valve is required.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-30SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 125 mm |
| Adjuster thread | M36×2.0 |
| 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 | M24×3.0 (F) / M36×1.5 (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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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 ACQJ160X125-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×125 | 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 ACQJ160X125-30SB Is Used
Press Tonnage Calibration
Fine-tune the extend stop on a heavy-duty press to apply precise clamping forces across different material thicknesses without swapping mechanical spacers.
Automotive Assembly Changeover
Adjust the end position rapidly when switching between vehicle models on a heavy assembly line, using the external stop to set new stroke limits on the machine.
Large Fixture Positioning
Dial in the exact extension point for massive welding fixtures during prototype trials, relying on the 95-125 mm usable range to find the optimal contact point.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-30SB the Right Cylinder?
When sizing this 160 mm bore actuator, stepping down to a 140 mm bore yields 7696.9 N push at 0.5 MPa, while this Ø160 unit provides 10053.1 N. If higher thrust is necessary, note that 160 mm is the largest standard bore in this compact family. A fixed-stroke ACQ is sufficient if your end position never varies, but choose this ACQJ model if you need on-the-fly end-position tuning during product changeovers. Confirm the 125 mm full stroke, 30 mm adjuster window, -S magnet, and -B male rod thread when ordering.
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 ACQJ160X125-30SB FAQ
This cylinder generates 10053.1 N push and 9424.8 N pull at 0.5 MPa, 14074.3 N push at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa. The full stroke is 125 mm with a 30 mm adjustment window, giving a usable extend range of 95-125 mm. It features a PT3/8 port, a male M36x1.5 rod thread, and an M36x2.0 external adjuster thread.
The external threaded stop with a lock nut physically limits how far the rod extends, shortening the forward stroke without changing the piston area, meaning force remains identical to a standard ACQ. The retract stroke is unaffected. Fixed NBR elastomer bumpers handle end-of-stroke deceleration, but for fail-safe load holding during air loss, an external rod lock is required since the cylinder drifts under load when unpressurized.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
Request a Quote for Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-30SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.