Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-30S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-30S 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 ACQJ125X175-30S
The AirTAC ACQJ125X175-30S is a double-acting, single-rod JIS compact cylinder from the big-bore range, featuring an external threaded stop with a lock nut that limits the EXTEND end position. You can fine-tune the extend stroke on the machine between 145 and 175 mm without swapping parts. The RETRACT stroke remains completely unaffected by this adjustment. Because the piston area stays the same, the output force is identical to a standard ACQ of this bore.
This 125 mm bore variant delivers 6135.9 N push and 5733.8 N pull at 0.5 MPa, scaling to a maximum push of 1251 kgf at 1.0 MPa. The rod end features a female M22x2.5 thread, and the external adjuster uses an M27x2.0 thread. Deceleration is handled by a fixed NBR elastomer bumper at each end. The integrated -S piston magnet interfaces seamlessly with reed or electronic solid-state switches via the built-in grooves.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-30S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-30S |
|---|---|
| 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 ACQJ125X175-30S
| 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 ACQJ125X175-30S Is Used
Press Tooling Changeover
Adapt forming stops rapidly on heavy presses when switching material thicknesses, using the external adjuster to dial in the 145-175mm extend position.
Automotive Welding Fixtures
Accommodate varying clamp positions on robotic welders without disassembling the cylinder, ensuring precise end-of-stroke locations on the fly.
Large Pallet Positioning
Tune the push distance for different pallet sizes on heavy-duty packaging lines, relying on the 1251 kgf max push to shift substantial loads.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X175-30S the Right Cylinder?
When sizing this big-bore compact actuator, consider the 100 mm bore variant which yields 3927.0 N push at 0.5 MPa, or step up to the 140 mm bore providing 7696.9 N push if your application requires greater thrust. A standard fixed-stroke ACQ cylinder is sufficient if your end position never requires shifting. Confirm your ordering details: 125 mm bore, 175 mm full stroke, 30 mm adjustable window, -S magnet for sensing, and the female M22x2.5 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 ACQJ125X175-30S FAQ
It provides 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. The usable extend range is 145 to 175 mm (full 175 mm stroke minus the 30 mm window).
No, the external M27x2.0 threaded stop only changes the extend length, not the piston area, so force remains identical to a standard ACQ. Deceleration is managed by a fixed NBR elastomer bumper at each end, not an adjustable air cushion.
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Related AirTAC ACQJ Compact Cylinders
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