Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke40 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10SB
The AirTAC ACQJ140X40-10SB is a double-acting, big-bore JIS compact cylinder with an external extend stop. A threaded adjuster and lock nut limit the outward rod travel, allowing you to set the usable extend range from 30 mm up to the full 40 mm directly on your equipment. The inward return stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, output force equals a standard ACQ of this size, yielding 7696.9 N push and 7294.8 N pull at 0.5 MPa. This variant includes a male M30x1.5 piston rod end for direct mounting and a built-in magnet (-S) compatible with reed or solid-state switches. Deceleration is handled by fixed NBR elastomer bumpers, not adjustable air cushions.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 40 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 ACQJ140X40-10SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×40 | 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 ACQJ140X40-10SB Is Used
Heavy Press Tonnage Setup
Dial in the exact 30 to 40 mm extend position during heavy-press changeovers without machining custom spacers or swapping cylinders.
Bending Fixture Calibration
Establish trial end stops for varying material thicknesses in large metal-bending fixtures, securing the lock nut once the optimal depth is found.
Palletizer Lift Profiling
Adjust the downward extend limit on the fly when handling different pallet heights, relying on the 1570 kgf max push capacity for robust lifting.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10SB the Right Cylinder?
For lighter duty, the 100 mm bore offers 3927.0 N push at 0.5 MPa, whereas this 140 mm unit provides 7696.9 N. If your application requires fixed end positions without on-machine tuning, a standard ACQ cylinder will suffice. When ordering, confirm the 40 mm full stroke, 10 mm adjustment window, -S magnet, and -B male rod thread. Operating pressure spans 0.15-1.0 MPa with PT3/8 ports.
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 ACQJ140X40-10SB FAQ
The usable extend range is 30-40 mm (40 mm full stroke minus the 10 mm window). Force is identical to a standard ACQ: 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.
An M27x2.0 threaded screw with a lock nut mechanically limits the extend length without changing the pneumatic force. Deceleration relies on fixed NBR bumpers, not adjustable air cushions. The cylinder will not hold its load on air loss; use an external rod lock or pilot-operated check valve for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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