Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-10S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 175mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke175 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-10S
The AirTAC ACQJ125X175-10S is a JIS compact, double-acting single-rod cylinder featuring a big-bore 125mm body and an external threaded stop with a lock nut. This mechanism limits the extend end position, providing a usable forward travel range of 165 to 175mm. You can fine-tune the forward end position directly on the machine without swapping parts, while the retract stroke remains completely unaffected.
Because the internal piston area stays constant, output force equals that of a standard ACQ of this bore. At 0.5 MPa, it delivers 6135.9N of push force and 5733.8N of pull force. The unit includes a built-in magnet (-S) for position sensing, compatible with reed or solid-state switches, and relies on a fixed NBR elastomer bumper at each end for end-of-travel deceleration.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-10S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 175 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 ACQJ125X175-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×175 | 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 ACQJ125X175-10S Is Used
Press Tonnage Calibration
Dial in the exact 165-175mm extend position on a large stamping press to accommodate varying material thicknesses without machining new spacers.
Automated Assembly Line Stops
Modify the end-of-stroke limit for product changeovers on heavy automotive assembly conveyors, utilizing the 1251 kgf max push to halt substantial pallet masses.
Heavy Pallet Positioning
Fine-tune the forward push distance on a palletizer to align bulky loads precisely, relying on the fixed elastomer bumper to absorb the impact at travel end.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-10S the Right Cylinder?
When sizing this big-bore variant, stepping down to a 100mm bore yields 3927.0N push at 0.5 MPa, whereas stepping up to a 140mm bore provides 7696.9N push. If your setup requires a fixed 175mm forward travel without any on-machine adjustment window, a standard ACQ125x175 cylinder is sufficient. To order, confirm the 125mm bore, 175mm 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 ACQJ125X175-10S FAQ
The usable extend range is 165-175mm (full 175mm stroke minus a 10mm window). Force is identical to a standard ACQ: push is 6135.9N and pull is 5733.8N at 0.5 MPa, push is 8590.3N at 0.7 MPa, and max push is 1251 kgf at 1.0 MPa. The retract stroke is unaffected.
An external M27x2.0 threaded stop with a lock nut limits the extend travel, changing only the stroke length and not the piston area, so force remains unchanged. Deceleration is handled by a fixed NBR elastomer bumper at each end, not an adjustable air cushion. Note that a plain cylinder does not hold its load on air loss; add an external rod lock for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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