Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X40-10S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X40-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke40 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X40-10S
The AirTAC ACQJ125X40-10S is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. With a 10 mm adjustment window, the usable extend range spans 30 to 40 mm, while the retract stroke remains completely unaffected. This on-machine tuning removes the need to swap parts when dialing in end positions.
Because the piston area is unchanged, force output is identical to a standard ACQ of this bore, delivering 6135.9 N push and 5733.8 N pull at 0.5 MPa. This big-bore compact variant features a 32 mm rod, PT3/8 porting, fixed elastomer bumpers at both ends, and a built-in piston magnet for position sensing.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X40-10S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X40-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 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 ACQJ125X40-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | 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 ACQJ125X40-10S Is Used
Heavy Press Tonnage Calibration
Dial in the exact 30 to 40 mm extend position during heavy press setup to accommodate varying material thicknesses without machining new stop collars.
Automated Assembly Changeover
Adjust the end stop on the fly during product family changeovers on large assembly lines, saving downtime by avoiding cylinder disassembly.
Large Crate Positioning Stops
Fine-tune the pusher end position for different oversized packaging crate dimensions directly at the machine fixture.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X40-10S the Right Cylinder?
When sizing this 125 mm bore, dropping down to a 100 mm bore yields 3927.0 N push at 0.5 MPa, while stepping up to a 140 mm bore provides 7696.9 N push at 0.5 MPa. If your application requires a fixed extend position every cycle, a standard ACQ cylinder without the external adjuster will suffice. To order this adjustable version correctly, confirm the 40 mm full stroke, the 10 mm window, the S magnet for sensors, and the 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 ACQJ125X40-10S FAQ
The usable extend range is 30 to 40 mm (a 10 mm window off the 40 mm full stroke). The force is identical to a standard ACQ: 6135.9 N push and 5733.8 N pull at 0.5 MPa, 8590.3 N push at 0.7 MPa, and a maximum push of 1251 kgf at 1.0 MPa.
An M27x2.0 external threaded stop with a lock nut limits the extend stroke length without altering the piston area, so force remains unchanged. The retract stroke is unaffected, fixed NBR elastomer bumpers decelerate the load at the ends, and the built-in S magnet works with reed or electronic solid-state switches.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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