Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10S 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 ACQJ140X40-10S
The AirTAC ACQJ140X40-10S is a double-acting, JIS compact cylinder featuring an external threaded stop with a lock nut to precisely limit the extend end position. This mechanism allows you to fine-tune the forward stroke on the machine without swapping components, providing a usable extend range of 30 to 40 mm. The retract stroke remains completely unaffected by this adjustment.
Because the internal piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 7696.9 N push force at 0.5 MPa. The unit incorporates a built-in piston magnet for use with reed or electronic solid-state switches, and relies on a fixed NBR elastomer bumper at each end for deceleration. Operating pressure spans 0.15 to 1.0 MPa, and the rod end accepts a standard female M22x2.5 thread.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10S |
|---|---|
| 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 ACQJ140X40-10S
| 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 ACQJ140X40-10S Is Used
Press Tooling Setup
Dial in exact clamping end positions during press tooling setup, allowing operators to shorten the extend stroke by up to 10 mm for varying material thicknesses without machining new stops.
Automotive Product Changeover
Adapt end-of-line actuator stops rapidly during automotive product changeover, using the external M27x2.0 adjuster to accommodate different chassis dimensions while retaining full retraction.
Palletizer Trial Positions
Establish precise trial end positions on heavy-duty palletizing equipment, tweaking the extend stroke to fine-tune pusher distance without altering the fixed elastomer bumper alignment.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X40-10S the Right Cylinder?
When sizing this big-bore compact cylinder, consider the adjacent bore options for force scaling. Stepping down to the 125 mm bore yields 6135.9 N push force at 0.5 MPa, while stepping up to the 160 mm bore provides 10053.1 N. If your application requires a fixed extend position with no on-machine variation, a standard ACQ cylinder will suffice. To order this adjustable variant correctly, confirm the 140 mm bore, 40 mm full stroke, 10 mm adjustment window, the S magnet option, and your required rod thread type.
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 ACQJ140X40-10S FAQ
This model delivers 7696.9 N push and 7294.8 N pull force 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 40 mm, and with the 10 mm adjustment window, the usable extend range is 30 to 40 mm.
No, the external threaded stop only limits the extend stroke length, meaning the force remains identical to a standard ACQ of the same bore. The retract stroke is unaffected. Deceleration relies on a fixed elastomer bumper, and for fail-safe load holding on air loss, an external rod lock is required.
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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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