Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-75S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-75S 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 ACQJ160X250-75S
The AirTAC ACQJ160X250-75S is a double-acting, single-rod JIS compact cylinder featuring an external extend stop. A threaded adjuster with a lock nut allows you to fine-tune the extend end position on the machine, yielding a usable extend range of 175-250mm from the 250mm full stroke. The retract stroke remains unaffected. As part of the big-bore compact range (up to 300mm stroke), it includes a built-in piston magnet for position sensing.
Because the adjustment merely limits travel without altering piston area, output force stays identical to a standard ACQ of this bore. At 0.5 MPa, it delivers 10053.1N of push force and 9424.8N of pull force. The unit relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion. Note that a plain cylinder does not hold its load on air loss; pair it with an external rod lock or pilot-operated check valve for fail-safe holding.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-75S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-75S |
|---|---|
| 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 ACQJ160X250-75S
| 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 ACQJ160X250-75S Is Used
Heavy Press Tuning
Dial in the exact clamping depth on a large metalforming press during setup or material thickness changes without machining new spacers.
Automotive Assembly Stops
Adjust the extend position for large vehicle body panels when switching between model variants directly on the production line.
Pallet Positioning
Fine-tune the lifting height of heavy load elevators to accommodate varying pallet sizes while relying on the fixed bumper for end stops.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-75S the Right Cylinder?
Selecting this 160mm bore model provides massive thrust, pushing 10053.1N at 0.5 MPa. If your application requires slightly less force, stepping down to a 140mm bore yields 7696.9N push at the same pressure, while moving up is not possible as this is the largest available big-bore compact size. A fixed-stroke ACQ cylinder will suffice if your end position never varies. When ordering, confirm the 250mm full stroke, 75mm window, the -S magnet, and the default female M24x3.0 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 ACQJ160X250-75S FAQ
It provides 10053.1N push and 9424.8N pull force at 0.5 MPa, 14074.3N push at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa. The full stroke is 250mm, and the external M36x2.0 adjuster allows the extend stroke to be shortened by up to 75mm, giving a usable extend range of 175-250mm.
No, the adjuster only limits the extend stroke length, leaving the piston area and force unchanged. Deceleration is handled by a fixed NBR elastomer bumper at each end, not an adjustable air cushion. The built-in -S magnet works with reed or electronic solid-state switches.
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Related AirTAC ACQJ Compact Cylinders
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