Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-100SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-100SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke100 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-100SB
The ACQJ140X100-100SB is a double-acting, big-bore 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 0 up to 100 mm without swapping parts, while the retract stroke remains unaffected. The adjuster mechanism uses an M27x2.0 external thread to set the end stop securely.
Because the piston area is unchanged, the force output is identical to a standard ACQ of this bore, delivering 7696.9 N push and 7294.8 N pull at 0.5 MPa. It includes an M30x1.5 male-thread piston rod end for direct load coupling, a PT3/8 port, and a built-in magnet compatible with reed or solid-state switches. The unit relies on a fixed NBR elastomer bumper at each end for deceleration, so adding an external shock absorber is advised for high-energy approaches.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-100SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-100SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 100 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 ACQJ140X100-100SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×100 | 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 ACQJ140X100-100SB Is Used
Heavy Press Fixturing
Adjusts the extend stop during product changeovers on large presses, allowing precise 0 to 100 mm positioning without machining new spacer blocks.
Large Assembly Trial Stops
Sets trial end positions for heavy automotive assembly lines, using the male M30x1.5 rod to connect directly to heavy tooling while tuning the stroke.
Pallet Lift Positioning
Dial in the exact lift height on heavy pallet handling systems, relying on 1570 kgf max push to elevate loads and the lock nut to hold the setting.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-100SB the Right Cylinder?
Choosing this Ø140 big-bore compact unit means requiring substantial force alongside variable extend positioning. If your application needs less push force, stepping down to a bore 125 cylinder provides 6135.9 N push at 0.5 MPa. If higher force is necessary, the bore 160 variant yields 10053.1 N push at 0.5 MPa. A fixed-stroke ACQ is sufficient if your end position never varies. Confirm your ordering essentials: 140 mm bore, 100 mm full stroke, 100 mm adjust window, -S magnet, and -B male 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 ACQJ140X100-100SB FAQ
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 full stroke is 100 mm, and the external stop allows the usable extend range to be adjusted from 0 to 100 mm.
The external M27x2.0 threaded stop with lock nut limits only the extend stroke length, meaning force remains identical to a standard ACQ since piston area is unchanged. The fixed NBR bumper decelerates the piston near stroke ends, but a plain ACQ-type does not hold its load on air loss; for fail-safe holding, use an external rod lock or pilot-operated check valve.
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