Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-20SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke40 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-20SB
The ACQJ160X40-20SB is a double-acting, single-rod JIS compact cylinder from AirTAC's big-bore range, designed for adjustable extend-stroke applications. It features an external M36x2.0 threaded stop with a lock nut, allowing you to fine-tune the extend end position from 20mm up to the full 40mm directly on the machine. The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, the force output is identical to a standard ACQ of the same bore, delivering 10053.1N push and 9424.8N pull at 0.5 MPa. This model includes a male M36x1.5 piston rod end for direct load coupling, a built-in magnet for electronic or reed switches, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-20SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 40 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 ACQJ160X40-20SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×40 | 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 ACQJ160X40-20SB Is Used
Heavy Press Tonnage Setup
Dial in the exact 20-40mm extend position for a heavy-duty press during initial tooling setup without machining custom spacers.
Large Fixture Changeover
Adjust the end stop rapidly on a 160mm bore assembly station when switching between large product variants on the production line.
Stamping Trial Positions
Test varying material thicknesses on a stamping machine by shifting the extend limit within the 20mm window before finalizing the stroke.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-20SB the Right Cylinder?
Choosing this 160mm bore provides massive thrust, pushing 14074.3N at 0.7MPa. If your application requires less force, stepping down to a 140mm bore yields 7696.9N push at 0.5MPa, whereas a larger custom solution would be needed for higher demands. A fixed-stroke ACQ is sufficient if your extend position never varies. When ordering, verify the 40mm full stroke, 20mm adjustable window, the -S magnet requirement, and the -B male rod thread. Note that a plain ACQ-type does not hold its load on air loss; utilize an external rod lock or pilot-operated check valve for fail-safe holding.
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 ACQJ160X40-20SB 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 40mm with a 20mm adjustable window, giving a usable extend range of 20-40mm. The retract stroke remains the full 40mm.
The external M36x2.0 threaded stop with lock nut limits the extend stroke length only; it does not alter piston area, so force remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers, not adjustable air cushions. The -S magnet works with reed or solid-state switches.
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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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