Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-40S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-40S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke75 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-40S
The AirTAC ACQJ160X75-40S 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 usable extend stroke anywhere from 35 mm up to the full 75 mm directly on your machinery, while the retract stroke remains completely unaffected. This big-bore compact variant supports standard strokes up to 300 mm.
Because the internal piston area stays the same, adjusting the travel length does not alter the output force. You get the exact same power as a standard ACQ of this bore: 10053.1 N push and 9424.8 N pull at 0.5 MPa. It uses a PT3/8 port, a Ø40 mm piston rod, fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration, and a built-in magnet (-S) compatible with reed or solid-state electronic switches.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-40S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-40S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 75 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 ACQJ160X75-40S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×75 | 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 ACQJ160X75-40S Is Used
Heavy Press Tonnage Setup
Dial in the exact 35 to 75 mm extend position on a large stamping press without machining new spacers, ensuring precise contact force during multi-part changeovers.
Palletizing Stop Arms
Adjust the extend stop outward or inward on heavy-load palletizing equipment to accommodate varying pallet dimensions while maintaining the full 10053.1 N push power.
Large Fixture Clamping
Tune the end-of-stroke clamping depth on massive machining fixtures to compensate for part tolerances, relying on the fixed NBR bumper to absorb kinetic energy.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-40S the Right Cylinder?
If 9424.8 N pull at 0.5 MPa is insufficient, stepping up is not an option as Ø160 is the largest big-bore compact size in this series. If you need less force, dropping to the Ø140 bore provides 7696.9 N push at 0.5 MPa. Choose this adjustable model only if your application requires variable extend end positions; otherwise, a fixed-stroke ACQ cylinder is simpler and sufficient. When ordering, verify the 160 mm bore, 75 mm full stroke, 40 mm adjuster window, -S magnet option, and the default female M24x3.0 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 ACQJ160X75-40S FAQ
The force is identical to a standard ACQ: 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 usable extend range is 35-75 mm (a 40 mm window off the 75 mm full stroke). The external adjuster thread is M36x2.0.
An external threaded stop with a lock nut limits how far the rod extends, allowing you to shorten the stroke without changing the piston area, so force remains identical to a standard ACQ. The retract stroke is unaffected. Fixed elastomer bumpers handle deceleration at the ends, but for fail-safe load holding during air loss, you need an external rod lock or pilot-operated check valve.
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