Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X20-20S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X20-20S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 20mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke20 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X20-20S
The ACQJ160X20-20S is a double-acting single-rod JIS compact cylinder from AirTAC's big-bore range, capable of standard strokes up to 300 mm. An external threaded stopper with a lock nut restricts how far the rod extends, allowing you to dial in the end position directly on the machine. With a 20 mm full stroke and a 20 mm adjustment window, the usable extend range is 0-20 mm. The retract stroke remains completely unaffected.
Because the piston area stays the same, output force is identical to a standard ACQ of this bore, yielding 10053.1 N push at 0.5 MPa. The cylinder uses a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion. Equipped with a piston magnet (-S), it supports both reed and solid-state electronic switches for position sensing via the integrated grooves.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X20-20S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X20-20S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 20 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 ACQJ160X20-20S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×20 | 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 ACQJ160X20-20S Is Used
Press Tonnage Setup
Dial in the exact 0-20 mm extend position during heavy press tooling changes without machining new spacers.
Heavy Fixture Clamping
Adapt clamping endpoints on the fly for varying large automotive part dimensions directly at the machine.
Assembly Stroke Trials
Safely test different extend endpoints for industrial joining operations before locking the adjuster nut.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X20-20S the Right Cylinder?
When sizing this big-bore 160 mm unit, stepping down to a 140 mm bore drops the 0.5 MPa push force to 7696.9 N, while no larger pneumatic compact option exists in this family. A fixed-stroke ACQ is sufficient if your extend endpoint never varies. Confirm the ordering essentials: 160 mm bore, 20 mm full stroke, 20 mm window, the -S magnet, and the default female M24x3.0 rod-end thread. Note that a plain cylinder drifts on air loss; for fail-safe holding, specify an external rod lock or pilot-operated check valve.
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 ACQJ160X20-20S FAQ
It delivers 10053.1 N push and 9424.8 N pull at 0.5 MPa, 14074.3 N push at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa. The full stroke is 20 mm with a 20 mm adjustment window, giving a usable extend range of 0-20 mm. The external adjuster features an M36x2.0 thread.
No, the adjuster changes the extend stroke length only, so output force remains identical to a standard ACQ of the same bore. The retract stroke is unaffected. Deceleration relies on a fixed elastomer bumper, and for high-speed loads, an external shock absorber is recommended.
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Related AirTAC ACQJ Compact Cylinders
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