Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke200 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20S
The AirTAC ACQJ140X200-20S is a double-acting, big-bore JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend travel. You can fine-tune the extend end position on the machine itself, providing a usable extend range of 180 to 200 mm (the 200 mm full stroke shortened by up to the 20 mm window). The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 7696.9 N push and 7294.8 N pull at 0.5 MPa. The Ø32 mm piston rod utilizes an M27x2.0 adjuster thread, and the body incorporates fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. Equipped with the -S magnet option, the integrated piston magnet works seamlessly with both reed and electronic solid-state switches mounted in the standard grooves.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 200 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 ACQJ140X200-20S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×200 | 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 ACQJ140X200-20S Is Used
Heavy Press Tooling
Dial in the exact extend position during press tooling changeovers without machining custom spacers or swapping cylinders.
Automotive Assembly Stops
Set precise end-stops for varying chassis frames on an automotive line, adjusting the 180-200 mm extend travel on the fly.
Large Pallet Forming
Accommodate different pallet widths in heavy packaging equipment by tuning the extend stroke to match the current product run.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-20S the Right Cylinder?
For context on sizing, stepping down to the Ø125 bore yields 6135.9 N push at 0.5 MPa, while this Ø140 model provides 7696.9 N push at 0.5 MPa (1570 kgf max push at 1.0 MPa). If your extend end position never varies, a fixed-stroke ACQ cylinder is sufficient, but this ACQJ variant is essential for product-changeover stops. When ordering, verify the 140 mm bore, 200 mm full stroke, 20 mm adjustable window, the -S magnet for sensing, and the 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 ACQJ140X200-20S FAQ
At 0.5 MPa, the push force is 7696.9 N and the pull force is 7294.8 N; at 0.7 MPa, the push force is 10775.7 N. The maximum push force is 1570 kgf at 1.0 MPa. The full stroke is 200 mm with a 20 mm adjustable window, giving a usable extend range of 180-200 mm.
An external M27x2.0 threaded stop with a lock nut limits the extend travel, shortening the stroke without changing the piston area, so force remains identical to a standard ACQ. The retract stroke is unaffected. Deceleration is handled by fixed NBR elastomer bumpers at both ends, not adjustable air cushions, so external shock absorbers are recommended for high-energy loads. Note that a plain ACQ-type does not hold its load on air loss; use an external rod lock for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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