Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-75SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-75SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke75 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-75SB
The ACQJ125X75-75SB is a double-acting JIS compact cylinder featuring a 125mm bore and a 75mm full stroke. An external threaded stop with a lock nut limits the extend end position, giving a usable forward range of 0-75mm. The retract stroke remains unaffected by this adjustment. As part of the big-bore compact range, it handles up to 300mm strokes.
Because the piston area is unchanged, output force is identical to a standard ACQ of this size. The unit includes a male M30x1.5 rod-end thread for direct load coupling and a built-in piston magnet (-S) for position sensing. Fixed NBR elastomer bumpers absorb impact at both ends, operating reliably between -20 and +70 C at speeds of 30-500 mm/s.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-75SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-75SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 75 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 ACQJ125X75-75SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×75 | 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 ACQJ125X75-75SB Is Used
Press Tooling Setup
Dial in exact 0-75mm extend end positions during press tooling setup without machining new spacers or swapping cylinders.
Heavy Product Changeover
Adapt large-format manufacturing lines quickly by turning the external stop to meet new product dimensions on the fly.
Palletizer Trial Stops
Test varying end stops for different pallet heights on packaging lines, locking the nut once the ideal position is found.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X75-75SB the Right Cylinder?
Selecting this 125mm bore yields a push force of 6135.9N and a pull of 5733.8N at 0.5MPa. Dropping to a 100mm bore reduces push to 3927.0N, while stepping up to 140mm increases it to 7696.9N. If your machine never requires end-position tuning, a fixed-stroke ACQ suffices. Otherwise, confirm your ordering essentials: 125mm bore, 75mm full stroke, 75mm window, the -S magnet, 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 ACQJ125X75-75SB FAQ
It provides a push of 6135.9N and pull of 5733.8N at 0.5MPa, 8590.3N push at 0.7MPa, and a maximum push of 1251kgf at 1.0MPa. The usable extend range is 0-75mm (75mm full stroke minus the 75mm window).
The M27x2.0 external threaded stop limits only the extend length, leaving retract unchanged. Force is identical to a standard ACQ because the piston area is the same. Fixed NBR bumpers decelerate near stroke ends, but a plain cylinder drifts on air loss, so use an external rod lock for fail-safe holding.
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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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