Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X40-20
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X40-20 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ80 mm
- Full stroke40 mm
- Port sizePT3/8
- Adjuster threadM20×1.5
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X40-20
The AirTAC ACQJ80X40-20 is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend stroke anywhere from 20 mm up to the full 40 mm directly on the machine, while the retract stroke remains completely unaffected. Because the piston area stays the same, output force is identical to a standard ACQ of this bore.
Delivering 2513.2 N of push force and 2267.8 N of pull force at 0.5 MPa, this bore 80 unit uses a 25 mm piston rod and PT3/8 porting. It relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The body includes magnetic-switch grooves, though this specific configuration ships without a magnet.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X40-20 Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X40-20 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 40 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 ACQJ80X40-20
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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 ACQJ80X40-20 Is Used
Machining Fixture Stops
Dial in the extend position from 20 to 40 mm on a CNC machining fixture to accommodate raw part tolerances without swapping out hard stops.
Product Changeover Diverter
Adjust the extend stroke on a packaging line diverter to handle different carton widths on the fly, minimizing downtime between production runs.
Press Trial Positions
Set precise trial end positions on an assembly press to test component seating depth before locking down the final stroke length.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X40-20 the Right Cylinder?
If you need less thrust, the next size down is bore 63, which provides a 1558.6 N push at 0.5 MPa; stepping up to bore 100 yields 3927.0 N. A fixed-stroke ACQ is sufficient if your end position never varies, but the ACQJ is essential for setups requiring on-machine adjustability. When ordering, verify the 80 mm bore, 40 mm full stroke, 20 mm adjustable window, female M16x2.0 rod-end thread, and whether you need the S magnet option for reed or solid-state sensors.
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 ACQJ80X40-20 FAQ
At 0.5 MPa it provides 2513.2 N push and 2267.8 N pull force, and 3518.5 N push at 0.7 MPa. The maximum push is 513 kgf at 1.0 MPa. The usable extend range is 20-40 mm, created by the 40 mm full stroke minus the 20 mm adjustable window.
The M20x1.5 external threaded stop with a lock nut limits the extend length without altering piston area, so force remains identical to a standard ACQ. Deceleration is handled by a fixed elastomer bumper at each end, not an adjustable air cushion. Note that a plain ACQ does not hold its 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 are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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