Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ80 mm
- Full stroke70 mm
- Port sizePT3/8
- Adjuster threadM20×1.5
About the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40
The AirTAC ACQJ80X70-40 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend range from 30 mm up to the full 70 mm directly on your equipment without swapping parts. The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, output force is identical to a standard ACQ of the same bore, delivering 2513.2 N push at 0.5 MPa. The unit incorporates fixed elastomer bumpers at both ends rather than adjustable air cushions. It features a 25 mm piston rod, a PT3/8 port, and a female M16x2.0 rod-end thread, alongside an M20x1.5 external adjuster thread.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40 Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 70 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 ACQJ80X70-40
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 ACQJ80X70-40 Is Used
Machining Fixture Limits
Dial in the exact extend stop on multi-part machining fixtures to accommodate raw material thickness variations without manufacturing new spacer blocks.
Packaging Changeover Stops
Rapidly adapt sealing or folding head end positions during packaging line product changeovers by turning the external adjuster to the new required extend length.
Assembly Press Testing
Safely test trial end positions on automated assembly presses by limiting the extend stroke to 30 mm, preventing damage during initial equipment setup and dry-run cycling.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-40 the Right Cylinder?
If your application requires less force, stepping down to a bore 63 unit yields 1558.6 N push at 0.5 MPa. For heavier loads, moving up to a bore 100 cylinder provides 3927.0 N push. A fixed-stroke ACQ is sufficient if your extend end position never varies. To order this adjustable model correctly, confirm the 80 mm bore, 70 mm full stroke, 40 mm adjuster window, female rod thread, and whether you require a magnet for sensing.
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 ACQJ80X70-40 FAQ
The force is identical to a standard ACQ: 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 usable extend range is 30-70 mm, allowing you to shorten the 70 mm full stroke by up to a 40 mm window.
An external M20x1.5 threaded stop with a lock nut mechanically limits how far the rod extends, leaving the retract stroke unaffected. The cylinder uses fixed NBR elastomer bumpers, not adjustable air cushions. A plain ACQ-type cylinder does not hold its load on air loss; for a fail-safe hold, use an external rod lock or pilot-operated check valve.
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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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