Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20B
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20B 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 ACQJ80X50-20B
The AirTAC ACQJ80X50-20B is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend stroke. With a 50mm full stroke and a 20mm adjustment window, the usable extend range is 30 to 50mm. The retract stroke remains completely unaffected. Force output is identical to a standard ACQ of the same bore, as the adjuster alters stroke length only, not piston area.
This bore 80mm model uses a PT3/8 port and a 25mm piston rod. It includes a male M22x1.5 rod-end thread (-B) for direct load coupling. The body incorporates fixed elastomer bumpers at both ends for end-of-stroke deceleration and features integrated magnetic-switch grooves, though this specific SKU ships without a piston magnet. Operating pressure spans 0.15 to 1.0 MPa, and the external adjuster utilizes an M20x1.5 thread.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20B Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20B |
|---|---|
| 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 ACQJ80X50-20B
| 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 ACQJ80X50-20B Is Used
Machining Fixture Clamps
Dial in exact clamping reach on machining fixtures during setup. The external stop adjusts the extend position from 30 to 50mm without swapping cylinders.
Product Changeover Diverters
Reposition conveyor diverting gates for different package sizes. The lock nut allows quick on-machine stroke tuning to match new product lines.
Packaging Machine Stops
Set precise trial end positions for packaging folder mechanisms. The male M22x1.5 rod threads directly to the load for secure linkage.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20B the Right Cylinder?
Selecting this bore 80mm unit provides 2513.2N push and 2267.8N pull at 0.5MPa. If your application requires less force, stepping down to a 63mm bore yields 1558.6N push, whereas sizing up to a 100mm bore provides 3927.0N push. A standard fixed-stroke ACQ is sufficient if your end position never varies. When ordering, confirm the 50mm full stroke, the 20mm window, the male M22x1.5 rod thread (-B), and whether you need the magnet option (-S) for sensing. Note that a plain ACQ-type cylinder does not hold its load on air loss; the rod drifts, and the fixed bumper only decelerates near the stroke end. For a fail-safe hold, 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-20B FAQ
Force is identical to a standard ACQ bore 80: push is 2513.2N and pull is 2267.8N at 0.5MPa, push is 3518.5N at 0.7MPa, and max push is 513kgf at 1.0MPa. The full stroke is 50mm with a 20mm window, yielding a usable extend range of 30 to 50mm.
The external M20x1.5 threaded stop with lock nut limits the extend stroke only; the retract stroke is unaffected. The cylinder uses fixed elastomer bumpers at both ends rather than adjustable air cushions. For high-speed or high-energy loads, add an external shock absorber or slow the approach.
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Covers non-human-caused product damage.
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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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