Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-20S
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-20S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 45mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ80 mm
- Full stroke45 mm
- Port sizePT3/8
- Adjuster threadM20×1.5
About the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-20S
The AirTAC ACQJ80X45-20S is a double-acting JIS compact cylinder with an external extend-stop mechanism. A threaded screw and lock nut limit the outward travel, providing a usable extend range of 25 to 45 mm. The inward stroke remains fixed at 45 mm. Because the piston area stays constant, output force matches a standard ACQ exactly.
This bore 80 unit pushes with 2513.2 N at 0.5 MPa using its Ø25 mm rod and PT3/8 port. It includes a piston magnet (-S) for position sensing and relies on fixed NBR elastomer bumpers for end-of-stroke deceleration. The external M20x1.5 adjuster allows precise machine setup without swapping hardware.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-20S Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-20S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 45 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 ACQJ80X45-20S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 ACQJ80X45-20S Is Used
Machining Fixture Clamping
Dial in the exact clamping reach on a CNC lathe during part changeovers, shortening the extend stroke from 45 mm down to 25 mm to accommodate varying blank sizes.
Carton Forming Stops
Adjust the folding arm extension on a packaging line to handle different box depths without replacing the cylinder or adding mechanical spacers.
Press Ejector Setup
Fine-tune the ejection distance on a stamping press to safely clear new die profiles, relying on the external stop to set the precise outward position.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-20S the Right Cylinder?
Choose this 80 mm bore when your application demands high push force up to 513 kgf at 1.0 MPa alongside variable extend positioning. If your setup only requires a 25 mm extend, you could step down to a 63 mm bore offering 1558.6 N push at 0.5 MPa, but you lose the extra power. If you need the full 45 mm extend plus higher energy capacity, moving up to a 100 mm bore yields 3927.0 N push at 0.5 MPa. A fixed-stroke ACQ suffices if your end position never requires tuning. Confirm your ordering details: 80 mm bore, 45 mm full stroke, 20 mm adjuster window, magnet included, and female M16x2.0 rod end.
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 ACQJ80X45-20S FAQ
At 0.5 MPa, the push force is 2513.2 N and the pull force is 2267.8 N. At 0.7 MPa, the push force is 3518.5 N, with a maximum push of 513 kgf at 1.0 MPa. The full stroke is 45 mm, and the adjustable window is 20 mm, allowing the usable extend range to be set anywhere from 25 mm to 45 mm.
An external M20x1.5 threaded screw with a lock nut physically blocks the rod from extending further, shortening the stroke without reducing piston area, so force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers at both ends for deceleration rather than adjustable air cushions. The built-in magnet works with reed or solid-state electronic switches.
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1-Year Warranty
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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