Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40S
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40S 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 ACQJ80X50-40S
The AirTAC ACQJ80X50-40S is a double-acting JIS compact cylinder with an external M20x1.5 threaded stop and lock nut that limits the extend stroke. You get a usable extend range of 10-50 mm (50 mm full stroke minus the 40 mm window), while the retract stroke remains completely unaffected. Because the 80 mm piston area is unchanged, output force is identical to a standard ACQ of this bore.
This unit features a Ø25 mm piston rod, a PT3/8 port, and a female M16x2.0 rod-end thread. It includes a fixed NBR elastomer bumper at each end for end-of-stroke deceleration. The -S option adds a piston magnet compatible with reed or electronic solid-state switches fitted into the body grooves.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40S Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40S |
|---|---|
| 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 ACQJ80X50-40S
| 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 ACQJ80X50-40S Is Used
Machining Fixture Stops
Dial in the exact extend position from 10 to 50 mm on a CNC lathe loading fixture without machining new stop collars for each part family.
Package Diverters
Adjust the stroke length on a packaging line diverter to handle varying carton depths on the fly, ensuring positive contact without overtravel.
Press Tooling Setup
Set trial end positions for stamping or forming tools, allowing operators to fine-tune the 80 mm bore extend reach safely before locking the nut.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40S the Right Cylinder?
If you need slightly less thrust, the 63 mm bore yields 1558.6 N push @0.5 MPa, whereas the 100 mm bore provides 3927.0 N push @0.5 MPa for heavier demands. If the end position never varies, a fixed-stroke ACQ is simpler and sufficient. When ordering this adjustable model, confirm the 80 mm bore, 50 mm full stroke, 40 mm window, the -S magnet, and the default female 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 ACQJ80X50-40S FAQ
Force is identical to a standard ACQ: 2513.2 N push and 2267.8 N pull @0.5 MPa, 3518.5 N push @0.7 MPa, and a maximum push of 513 kgf @1.0 MPa. The usable extend range is 10-50 mm (a 50 mm full stroke minus the 40 mm window), while the retract stroke stays fixed.
The external M20x1.5 threaded stop with lock nut mechanically limits the extend distance without changing piston area or force. The cylinder uses fixed NBR elastomer bumpers, not adjustable air cushions, so add an external shock absorber for high-energy impacts. It will not hold a load on air loss; use an external rod lock for fail-safe holding.
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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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