Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-40S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-40S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke175 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-40S
The AirTAC ACQJ140X175-40S is a double-acting, single-rod JIS compact cylinder engineered for big-bore tasks up to 300mm standard stroke. It features an external threaded stop with a lock nut on the rod-end side, letting you fine-tune the extend end position on the machine. The usable extend range spans 135 to 175mm, while the retract stroke remains completely unaffected.
Because the piston area stays constant, output force is identical to a standard ACQ of this bore, delivering 7696.9N push at 0.5MPa. The Ø32mm rod uses an M22x2.5 female thread, and the M27x2.0 adjuster thread provides rigid stopping. Fixed NBR elastomer bumpers absorb impact at both ends, and the built-in magnet works seamlessly with reed or solid-state switches.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-40S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-40S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 175 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 (Ø140mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 7697 N | 7295 N |
| 0.7 MPa | 10776 N | — |
| Max (@1.0 MPa) | 1570 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 ACQJ140X175-40S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×175 | 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 ACQJ140X175-40S Is Used
Press Tooling Changeover
Adapts the extend endpoint precisely during product family transitions on large stamping presses without swapping out physical cylinder components.
Heavy Fixture Positioning
Dial in the exact 135 to 175mm reach for multi-stage machining fixtures holding heavy castings or large fabrications.
Pallet Stopper Calibration
Tune the stopping arm position on automated packaging conveyors to accommodate varying pallet heights or oversized crate widths.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X175-40S the Right Cylinder?
When sizing this 140mm bore actuator, the 125mm variant yields 6135.9N push, whereas the 160mm option provides 10053.1N at 0.5MPa. If your extend endpoint never varies, a fixed-stroke ACQ cylinder is sufficient and simpler. For this adjustable model, confirm your ordering essentials: 140mm bore, 175mm full stroke, 40mm window, the -S magnet, and your preferred 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 ACQJ140X175-40S FAQ
It delivers 7696.9N push and 7294.8N pull at 0.5MPa, 10775.7N push at 0.7MPa, and a maximum push of 1570 kgf at 1.0MPa. The full stroke is 175mm, the adjustable window is 40mm, and the usable extend range is 135-175mm.
No, the adjuster changes stroke length only, leaving the piston area and output force identical to a standard ACQ. The M27x2.0 external stop limits the extend stroke, fixed NBR bumpers decelerate the load at both ends, and the -S magnet supports reed or solid-state switches.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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