Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-20SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-20SB 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 ACQJ140X100-20SB
The AirTAC ACQJ140X100-20SB is a double-acting, single-rod JIS compact cylinder featuring a big 140mm bore and a 100mm full stroke. An external M27x2.0 threaded stop with a lock nut limits the extend distance, giving an 80 to 100mm usable range. The retract stroke remains completely unaffected. Because the piston area is unchanged, the output force is identical to a standard ACQ of this size, yielding 7696.9N push at 0.5MPa.
This variant includes the -S magnet for compatibility with reed or solid-state switches, plus a -B male M30x1.5 rod end for direct load coupling. Fixed NBR elastomer bumpers absorb impact at both ends. Operating pressure spans 0.15-1.0MPa, and the body supports up to 300mm standard strokes in this big-bore tier.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-20SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-20SB |
|---|---|
| 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 ACQJ140X100-20SB
| 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 ACQJ140X100-20SB Is Used
Press Tonnage Calibration
Dial in the exact 80-100mm extend position during press setup to test material deflection without machining custom spacers.
Heavy Fixture Changeover
Adapt large welding fixtures to new part geometries by turning the external M27x2.0 stop, saving downtime on the factory floor.
Pallet Lift Stops
Modify the raise height of heavy pallet lifts on the fly to accommodate varying pallet thicknesses using the lock nut.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-20SB the Right Cylinder?
If 7696.9N push at 0.5MPa is excessive, the Ø125 bore provides 6135.9N, whereas the Ø160 bore offers 10053.1N for heavier demands. A fixed-stroke ACQ is adequate if your extend position never requires alteration. To order, confirm the 140mm bore, 100mm full stroke, 20mm adjuster 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 ACQJ140X100-20SB FAQ
It delivers 7696.9N push and 7294.8N pull at 0.5MPa, 10775.7N push at 0.7MPa, and a maximum push of 1570kgf at 1.0MPa. The full stroke is 100mm, with a 20mm adjustable window giving an 80-100mm usable extend range.
No, the adjuster only changes the extend stroke length, leaving force identical to a standard ACQ. Fixed NBR bumpers decelerate the load near stroke ends, but a plain cylinder drifts on air loss; use an external rod lock for fail-safe holding.
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Covers non-human-caused product damage.
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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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