Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-20SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-20SB 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 ACQJ160X50-20SB
The AirTAC ACQJ160X50-20SB is a double-acting JIS compact cylinder featuring a big 160mm bore and an external threaded stop that limits the extend stroke. A lock nut on the rod-end side lets you fine-tune the extend end position on the machine, yielding a usable extend range of 30 to 50mm (the 50mm full stroke minus up to the 20mm window). The retract stroke remains completely unaffected. Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore.
This SB configuration includes a built-in piston magnet for position sensing and a male M36x1.5 piston rod end that couples directly to your load. It delivers a push force of 10053.1N and a pull force of 9424.8N at 0.5MPa, scaling up to 14074.3N at 0.7MPa. The unit relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. With PT3/8 ports and an M36x2.0 external adjuster thread, this big-bore model supports standard strokes up to 300mm.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-20SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-20SB |
|---|---|
| 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 ACQJ160X50-20SB
| 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 ACQJ160X50-20SB Is Used
Heavy Press Tonnage Setup
Dial in the exact 30-50mm extend position during heavy press changeovers without machining new spacer blocks.
Large Fixture Clamping
Adjust the clamping reach on large automotive fixtures on-site to accommodate varying part tolerances.
Press Brake End-Stops
Fine-tune the stroke end position on press brakes for trial bends, ensuring the retract stroke stays fixed.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X50-20SB the Right Cylinder?
Selecting this 160mm bore provides massive thrust, pushing 10053.1N at 0.5MPa. If you need slightly less force, stepping down to the 140mm bore yields 7696.9N push at 0.5MPa; conversely, the 160mm is the largest standard option in this compact family. If your application never requires altering the end position, a fixed-stroke ACQ cylinder suffices. When ordering, confirm the 50mm full stroke, the 20mm adjustable window, the S magnet, the B male rod thread, and the PT3/8 port size.
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 ACQJ160X50-20SB FAQ
At 0.5MPa it provides 10053.1N push and 9424.8N pull force, and 14074.3N push at 0.7MPa. The maximum push force is 2050kgf at 1.0MPa. The full stroke is 50mm, and the external stop allows an adjustable extend range of 30-50mm (a 20mm window).
An external M36x2.0 threaded stop with a lock nut limits the extend stroke length only. Because the piston area is unchanged, the force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers at each end for deceleration, and the -S magnet works with reed or electronic solid-state switches.
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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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