Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-75SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-75SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke125 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-75SB
The ACQJ160X125-75SB is a double-acting JIS compact cylinder featuring a big 160 mm bore and a male-thread piston rod. An external threaded stop with a lock nut restricts the extend end position, giving a usable forward range of 50-125 mm from the 125 mm full stroke. The retract movement remains totally unaffected by this mechanism.
Because the adjuster only limits travel length, the piston area stays the same, meaning force is identical to a standard ACQ of this size. You get 10053.1 N push at 0.5 MPa, 9424.8 N pull, and a maximum push of 2050 kgf at 1.0 MPa. The unit relies on a fixed NBR elastomer bumper for end-of-stroke deceleration and includes a piston magnet for position sensing.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-75SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-75SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 125 mm |
| Adjuster thread | M36×2.0 |
| 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 | M24×3.0 (F) / M36×1.5 (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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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 ACQJ160X125-75SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×125 | 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 ACQJ160X125-75SB Is Used
Heavy Press Tonnage Setup
Dial in the exact 50-125 mm extend reach on a large metalforming press during initial tooling setup without machining custom spacer blocks.
Automated Pallet Changeover
Adapt the forward stop position rapidly on an assembly line when switching between pallet sizes of varying heights, ensuring precise product handling.
Large Mold Clamping
Fine-tune the clamping reach on heavy injection molds, testing trial end positions safely before locking down the M36x2.0 adjuster nut.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X125-75SB the Right Cylinder?
Selecting this big-bore 160 mm unit makes sense when your application needs heavy thrust up to 10053.1 N at 0.5 MPa alongside variable forward positioning. If you require less force, stepping down to a 140 mm bore yields 7696.9 N push, whereas a larger custom pneumatic solution is required to exceed this since 160 mm is the top standard diameter. A fixed-stroke ACQ is adequate if your end position never requires tuning. Confirm your ordering essentials: 160 mm bore, 125 mm full stroke, 75 mm adjuster window, S magnet, and B male M36x1.5 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 ACQJ160X125-75SB FAQ
It delivers 10053.1 N push and 9424.8 N pull at 0.5 MPa, 14074.3 N push at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa. The 125 mm full stroke can be shortened by up to 75 mm, yielding a usable extend range of 50-125 mm.
An external M36x2.0 threaded stop with a lock nut mechanically limits the forward travel, leaving the retract stroke unchanged. Force remains identical to a standard ACQ because the piston area is unaltered. The cylinder uses a fixed NBR elastomer bumper, not an adjustable air cushion, and will not hold a load on air loss without an external rod lock.
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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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