Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-50SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-50SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 250mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke250 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-50SB
The ACQJ160X250-50SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend range from 200 mm up to the full 250 mm stroke directly on the machine without changing parts, while the retract stroke remains completely unaffected. This big-bore Ø160 variant supports standard strokes up to 300 mm.
Because the adjuster only alters travel length and not the piston area, the generated force remains identical to a standard ACQ of this bore. The rod end features a male M36x1.5 thread for direct load coupling, and the body includes fixed NBR elastomer bumpers at each end for end-of-stroke deceleration rather than adjustable air cushions.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-50SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-50SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 250 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 ACQJ160X250-50SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×250 | 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 ACQJ160X250-50SB Is Used
Heavy Press Tonnage Setup
Dial in the exact 200 to 250 mm extend position during heavy-duty press tooling changes without machining new spacers or swapping cylinders.
Large Fixture Changeover
Adapt the stroke end-point rapidly on automated welding lines when switching between different large structural product frames.
Press Trial End Positions
Test clamping pressure at varying depths on automotive assembly presses by tweaking the external M36x2.0 adjuster lock nut during prototype runs.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-50SB the Right Cylinder?
For lower force requirements, the adjacent Ø140 bore provides 7696.9 N push at 0.5 MPa, whereas stepping up is not applicable as Ø160 is the largest in this series. If your application requires a fixed extend end position without on-machine variance, a standard ACQ cylinder will suffice. When ordering this model, confirm the 160 mm bore, 250 mm full stroke, 50 mm adjustable window, the -S magnet for sensor tracking, 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 ACQJ160X250-50SB FAQ
The push force is 10053.1 N and pull is 9424.8 N at 0.5 MPa, with a push of 14074.3 N at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa. The full stroke is 250 mm with a 50 mm window, allowing a usable extend range of 200-250 mm.
No, the external stop only shortens the extend stroke, meaning force remains identical to a standard ACQ. The fixed elastomer bumper decelerates the rod near the end of travel but does not act as a lock; for fail-safe load holding on air loss, an external rod lock or pilot-operated check valve is required.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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