Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-50SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-50SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke50 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-50SB
The AirTAC ACQJ160X50-50SB is a double-acting, single-rod JIS compact cylinder from the big-bore range, featuring a 50mm total stroke and an external extend-stop mechanism. A threaded adjuster with a lock nut allows you to set the extend travel anywhere from 0mm up to the full 50mm, while the retract movement remains fixed at its original length. This on-machine tuning eliminates the need to swap cylinders when adapting to new product dimensions. The piston generates 10053.1N of push force and 9424.8N of pull force at 0.5MPa, exactly matching a standard ACQ of identical size because the adjuster alters stroke length only, not the piston area.
Equipped with a -S piston magnet, the body accepts both reed and electronic solid-state switches for position sensing. The -B option provides a male M36x1.5 rod-end thread that couples directly to your load, complementing the M36x2.0 external adjuster thread. Operating pressure spans 0.15 to 1.0MPa, and the unit relies on fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable pneumatic cushions. For high kinetic energy loads, adding an external shock absorber is recommended, and a separate rod lock or pilot-operated check valve is required for fail-safe load holding since air loss will cause drift.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-50SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-50SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 50 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 ACQJ160X50-50SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×50 | 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 ACQJ160X50-50SB Is Used
Press Tool Changeover
Adapting a large stamping press for a new blank height is fast; turn the external M36x2.0 adjuster to shift the extend end position within the 0-50mm window without disassembling the tooling.
Heavy Fixture Clamping
Securing oversized machining fixtures demands precise clamping depth; tune the stroke on the machine to prevent over-travel while utilizing the full 14074.3N extend force available at 0.7MPa.
Pallet Lift Positioning
Raise varying pallet heights in automated storage systems by dialing the extend stop, ensuring the lift plate hits the exact required upper level every cycle without reprogramming sensors.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-50SB the Right Cylinder?
Choosing this Ø160 bore provides a massive 10053.1N push force at 0.5MPa, stepping down to the Ø140 variant drops that output to 7696.9N, while stepping up is not possible as this is the largest standard compact option. If your extend position never needs modification, a fixed-stroke ACQ cylinder will deliver the same power without the external adjuster hardware. When ordering, confirm the 50mm full stroke, the 50mm adjustable window, the -S magnet for electronic or reed sensors, and the -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 ACQJ160X50-50SB FAQ
It delivers 10053.1N push and 9424.8N pull at 0.5MPa, 14074.3N push at 0.7MPa, and a maximum push of 2050kgf at 1.0MPa. The full stroke is 50mm, and the adjustable extend window allows the usable extend range to be set anywhere from 0mm to 50mm; the retract stroke remains unaffected.
An external threaded stop with a lock nut mechanically limits how far the rod extends, shortening the stroke without changing the piston area, so the force output remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at both ends, not adjustable air cushions, so for high-speed or heavy loads you should add an external shock absorber.
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