Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20SB
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ80 mm
- Full stroke50 mm
- Port sizePT3/8
- Adjuster threadM20×1.5
About the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20SB
The AirTAC ACQJ80X50-20SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend range from 30 mm up to the full 50 mm stroke directly on the machine without swapping parts. The retract stroke remains completely unaffected by this adjustment.
Because the piston area stays the same, the output force is identical to a standard ACQ of this bore, yielding 2513.2 N push force at 0.5 MPa. This 80 mm bore unit features a 25 mm piston rod, a male M22x1.5 rod end for direct load coupling, PT3/8 ports, and a built-in magnet for reed or solid-state switches. Fixed elastomer bumpers absorb impact at both ends, and the external adjuster uses an M20x1.5 thread.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20SB Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 50 mm |
| Adjuster thread | M20×1.5 |
| 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 | M16×2.0 (F) / M22×1.5 (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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20SB Is Used
Machining Fixture Stops
Dial in the exact clamping extend position on a CNC machining fixture during part changeovers without machining new spacer blocks.
Diverter Gate Positioning
Adjust the extend stroke on a conveyor sorting gate to handle varying package sizes on the fly without reprogramming the PLC.
Press Depth Setup
Set precise downward travel limits on a light assembly press to test different trial end positions before finalizing the tooling.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20SB the Right Cylinder?
If you need slightly less push force at 0.5 MPa, the 63 mm bore provides 1558.6 N, whereas stepping up to the 100 mm bore yields 3927.0 N. A standard fixed-stroke ACQ is sufficient if your end position never requires adjustment. When ordering this cylinder, confirm the 80 mm bore, 50 mm full stroke, 20 mm adjustable window, the -S magnet for switch sensing, and the -B male 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20SB FAQ
The usable extend range is 30-50 mm (50 mm full stroke minus the 20 mm window). It provides 2513.2 N push and 2267.8 N pull at 0.5 MPa, 3518.5 N push at 0.7 MPa, and a maximum push of 513 kgf at 1.0 MPa. The retract stroke is unaffected.
The external M20x1.5 threaded stop with lock nut limits how far the rod extends, shortening the stroke length only. It does not change the piston area, so the output force remains identical to a standard ACQ. Fixed elastomer bumpers handle end-of-stroke deceleration.
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Genuine AirTAC parts produced by AirTAC factory.
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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