Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-75S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-75S 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 ACQJ125X150-75S
The AirTAC ACQJ125X150-75S is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the extend stroke on the machine from 75 mm up to the full 150 mm without changing parts, while the retract stroke remains completely unaffected. It incorporates a built-in piston magnet (-S) for use with reed or solid-state electronic switches.
Because the adjuster only alters travel length and not piston area, the output force is identical to a standard ACQ of this bore. At 0.5 MPa it delivers 6135.9 N push and 5733.8 N pull force. The unit uses a PT3/8 port, an M27x2.0 external adjuster thread, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-75S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-75S |
|---|---|
| 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 ACQJ125X150-75S
| 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 ACQJ125X150-75S Is Used
Heavy Press Tooling Setup
Dial in the exact 75 to 150 mm extend reach during press tooling changes without machining new spacers or swapping cylinders.
Automotive Component Probing
Adjust the end stop on an engine block inspection rig to test different casting depths safely using the fixed elastomer bumper.
Palletizing Format Changeover
Quickly modify the extend stroke for varying pallet heights during packaging line changeovers while retaining full 6135.9 N push force.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-75S the Right Cylinder?
When sizing this 125 mm bore unit, stepping down to a 100 mm bore yields 3927.0 N push at 0.5 MPa, whereas stepping up to a 140 mm bore provides 7696.9 N push. If your extend position never varies, a fixed-stroke ACQ cylinder is sufficient and avoids the external stop assembly. To order correctly, confirm the 125 mm bore, 150 mm full stroke, 75 mm adjustable window, the -S magnet for sensors, 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 ACQJ125X150-75S FAQ
It provides 6135.9 N push and 5733.8 N pull at 0.5 MPa, 8590.3 N push at 0.7 MPa, and a maximum push of 1251 kgf at 1.0 MPa. The full stroke is 150 mm with a 75 mm adjustable window, giving a usable extend range of 75-150 mm. The piston rod is Ø32 mm, the port is PT3/8, and the external adjuster thread is M27x2.0.
No, the external stop only changes the extend travel distance; the piston area remains the same, so force is identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers for deceleration rather than adjustable air cushions. For fail-safe load holding on air loss, you must add an external rod lock or pilot-operated check valve, as the bumper alone will not hold the load.
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 ACQJ125X150-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.