Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X50-10S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X50-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke50 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X50-10S
The AirTAC ACQJ140X50-10S is a double-acting JIS compact cylinder from the big-bore range, 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 itself within a 40-50mm usable range (the 50mm full stroke minus up to a 10mm window). The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, the force output is identical to a standard ACQ of the same bore, delivering 7696.9N push and 7294.8N pull at 0.5MPa. The design incorporates a fixed elastomer bumper at each end for end-of-stroke deceleration, and the included -S magnet works with reed or electronic solid-state switches via the built-in grooves.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X50-10S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X50-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 50 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 ACQJ140X50-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×50 | 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 ACQJ140X50-10S Is Used
Heavy Press Tonnage Calibration
Dial in the exact extend position during press setup without machining new spacers, ensuring precise tonnage delivery on varying metal thicknesses.
Automotive Assembly Line Changeover
Quickly shift the extend end stop to accommodate new product dimensions on a welding fixture, cutting model changeover time significantly.
Large Panel Bending Fixtures
Establish trial end positions on thick plate bending equipment to verify bend angles before finalizing the stroke length permanently.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X50-10S the Right Cylinder?
When sizing this 140mm bore actuator, stepping down to a 125mm bore yields 6135.9N push at 0.5MPa, while stepping up to a 160mm bore provides 10053.1N push. If your application never requires end-position variance, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable version, confirm the 140mm bore, 50mm full stroke, 10mm adjuster window, the -S magnet option, 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 ACQJ140X50-10S FAQ
It delivers 7696.9N push and 7294.8N pull at 0.5MPa, 10775.7N push at 0.7MPa, with a maximum push of 1570 kgf at 1.0MPa. The full stroke is 50mm, and with the 10mm adjustable window, the usable extend range is 40-50mm.
An external M27x2.0 threaded stop with a lock nut limits the extend stroke, allowing on-machine tuning without changing parts. The force remains identical to a standard ACQ because the piston area is unchanged. The cylinder uses a fixed elastomer bumper, and since it does not hold loads on air loss, an external rod lock is recommended 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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