Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-20S
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-20S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ80 mm
- Full stroke90 mm
- Port sizePT3/8
- Adjuster threadM20×1.5
About the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-20S
The AirTAC ACQJ80X90-20S is a double-acting JIS compact cylinder featuring an external stroke adjuster. A threaded stop with a lock nut on the rod-end side restricts how far the rod extends, yielding a usable extend range of 70-90 mm (full 90 mm stroke minus up to 20 mm). The retract stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, output force is identical to a standard ACQ of this 80 mm bore, delivering 2513.2 N push at 0.5 MPa. The cylinder body incorporates fixed NBR elastomer bumpers at each end for end-of-travel deceleration. Equipped with a piston magnet (-S), the integrated grooves readily accept either reed or electronic solid-state switches for position sensing.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-20S Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-20S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 90 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 ACQJ80X90-20S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×90 | 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 ACQJ80X90-20S Is Used
Machining Fixture Stops
Dial in the exact extend position on a CNC lathe bar feeder without machining custom spacer rings, shortening the stroke within the 70-90 mm window.
Carton Size Changeover
Rapidly adapt a carton sealing machine's upper pressing head for different box heights by turning the external M20x1.5 adjuster nut on the fly.
Assembly Press Tuning
Find the optimal end-of-stroke contact force during a new product line trial on an assembly press, tweaking the extend stop until the joint is perfectly set.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-20S the Right Cylinder?
When sizing this 80 mm bore actuator, consider the neighboring capacities: a 63 mm bore yields 1558.6 N push, while a 100 mm bore provides 3927.0 N push at 0.5 MPa. If your machine setup never requires end-position variance, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable version correctly, confirm the 80 mm bore, 90 mm full stroke, 20 mm window, -S magnet option, and the default female M16x2.0 rod-end thread. The standard port size is PT3/8.
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 ACQJ80X90-20S FAQ
This 80 mm bore cylinder 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 full stroke is 90 mm, and the external adjuster allows the extend stroke to be shortened by up to 20 mm, giving a usable extend range of 70-90 mm.
No, the force remains identical to a standard ACQ because the adjuster only changes the extend end position, not the piston area. The cylinder relies on fixed elastomer bumpers for deceleration rather than adjustable air cushions. Note that a plain compact cylinder will not hold its load on air loss; use an external rod lock or pilot-operated check valve for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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