Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10SB 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 ACQJ140X20-10SB
The AirTAC ACQJ140X20-10SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend range from 10 mm up to the full 20 mm directly on your equipment, while the retract stroke remains unaffected. Because the piston area stays the same, the output force is identical to a standard ACQ of this bore.
This big-bore variant delivers 7696.9 N push force at 0.5 MPa and includes an M27x2.0 adjuster thread. It comes standard with a male M30x1.5 piston rod end for direct load coupling, a built-in piston magnet for electronic or reed switches, and fixed NBR elastomer bumpers at each end for end-of-stroke deceleration.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10SB |
|---|---|
| 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 ACQJ140X20-10SB
| 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 ACQJ140X20-10SB Is Used
Press Tonnage Calibration
Dial in the exact 10 to 20 mm extend position during a press setup to test material deflection or tonnage limits before finalizing the hard stop.
Product Changeover Stops
Shift the extend endpoint by a few millimeters on an automated palletizing line when switching to a different package size, avoiding physical hardware swaps.
Assembly Fixture Prototyping
Test multiple end positions on a heavy-duty assembly fixture to find the optimal clamping depth for new components without machining new spacers.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X20-10SB the Right Cylinder?
When sizing this 140 mm bore actuator, dropping to the 125 mm bore yields 6135.9 N push at 0.5 MPa, whereas stepping up to the 160 mm bore provides 10053.1 N. If your machinery requires a fixed 20 mm extend depth without on-site variance, a standard ACQ cylinder is sufficient. To order this adjustable unit correctly, confirm the 140 mm bore, 20 mm full stroke, 10 mm window, the S magnet option, and the 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 ACQJ140X20-10SB FAQ
This double-acting cylinder has a 140 mm bore, a 20 mm full stroke, and a 10 mm adjustable window, giving a usable extend range of 10-20 mm. It generates 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 force is identical to a standard ACQ of this bore because the adjuster only changes stroke length.
An external M27x2.0 threaded stop with a lock nut limits the extend stroke, allowing you to shorten it by up to 10 mm without changing parts; the retract stroke is unaffected. The cylinder uses fixed NBR elastomer bumpers at each end for deceleration rather than adjustable air cushions. The built-in S magnet works with reed or solid-state electronic switches, and the B option provides a male M30x1.5 rod end for direct coupling.
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1-Year Warranty
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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