Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 20mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke20 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10S
The AirTAC ACQJ140X20-10S is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that restricts the EXTEND end position. You can fine-tune the usable extend travel anywhere from 10 mm up to the full 20 mm directly on the machine, while the RETRACT stroke remains completely unaffected. This big-bore 140 mm unit delivers a push force of 7696.9 N at 0.5 MPa, matching a standard ACQ because the adjuster alters stroke length only, leaving piston area untouched.
It incorporates a fixed elastomer bumper at each end to decelerate the rod near travel limits rather than relying on adjustable pneumatic cushions. The -S suffix denotes a built-in piston magnet compatible with reed or electronic solid-state switches via the body's sensor grooves. Operating pressure spans 0.15 to 1.0 MPa, and the PT3/8 porting plus M27x2.0 adjuster thread ensure robust fluid control for heavy-duty setups.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 20 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 ACQJ140X20-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×20 | 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 ACQJ140X20-10S Is Used
Press Tonnage Setup
Dialing in the exact 10 to 20 mm extend position during heavy press tooling changes without machining new spacers.
Automotive Welding Stops
Shifting the extend limit on a 140 mm bore robot fixture to accommodate different chassis frame widths on the line.
Metal Forming Clamp
Testing trial end positions for high-force clamping operations before locking the M27x2.0 external stop nut.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10S the Right Cylinder?
Choosing this 140 mm bore provides a massive 1570 kgf maximum push at 1.0 MPa. If your application needs slightly less thrust, scaling down to the 125 mm bore yields 6135.9 N push at 0.5 MPa; moving up to the 160 mm bore provides 10053.1 N push at 0.5 MPa. A fixed-stroke ACQ suffices if your end position never varies, but this ACQJ variant is essential for trial end positions. Confirm ordering essentials: 140 mm bore, 20 mm full stroke, 10 mm adjustment window, the -S magnet for sensing, 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 ACQJ140X20-10S FAQ
The usable extend range is 10-20 mm (a 20 mm full stroke minus a 10 mm adjustment window). It delivers 7696.9 N push and 7294.8 N pull at 0.5 MPa, 10775.7 N push at 0.7 MPa, and a maximum push of 1570 kgf at 1.0 MPa. The retract stroke is unaffected by the adjuster.
No, the adjuster only limits how far the rod extends; the force remains identical to a standard ACQ because the piston area is unchanged. The cylinder relies on a fixed elastomer bumper for end-of-stroke deceleration, and the -S magnet works with reed or electronic solid-state switches.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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