Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20 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 ACQJ80X70-20
The AirTAC ACQJ80X70-20 is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend range from 50 to 70 mm directly on the machine without swapping parts, while the retract stroke remains unaffected. The adjuster features an M20x1.5 thread.
Because the piston area is unchanged, the force output is identical to a standard ACQ of this bore, delivering 2513.2 N push and 2267.8 N pull at 0.5 MPa. The unit relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The body includes sensor grooves, though this specific configuration ships without a magnet.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20 Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20 |
|---|---|
| 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 ACQJ80X70-20
| 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 ACQJ80X70-20 Is Used
Machining Fixture Stops
Dial in the exact clamping reach on multi-part machining fixtures by turning the external stop, accommodating various raw blank lengths without fabricating custom spacers.
Assembly Line Changeover
Adapt end-of-stroke positions rapidly during product family changeovers on automated assembly lines, ensuring precise positioning for different component heights.
Packaging Tucking Arms
Modify the extend distance of carton sealing or tucking arms to handle varying package dimensions, preventing overtravel and crushing delicate boxes.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20 the Right Cylinder?
When sizing this 80 mm bore actuator, note it provides 2513.2 N push at 0.5 MPa. If your application requires less force, the next smaller bore (63 mm) yields 1558.6 N push, whereas the larger 100 mm option provides 3927.0 N. If the exact 70 mm extend length is constant and never needs tuning, a fixed-stroke ACQ cylinder is sufficient. To order, confirm the 80 mm bore, 70 mm full stroke, 20 mm adjuster window, female rod-end thread M16x2.0, and the absence of the S magnet option.
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 ACQJ80X70-20 FAQ
The usable extend range is 50 to 70 mm (a 20 mm window off the 70 mm full stroke). 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.
An external M20x1.5 threaded stop with a lock nut mechanically limits the extend length; it changes stroke travel only and does not alter piston area, so force remains unchanged. The cylinder uses a fixed elastomer bumper for deceleration and will drift if air pressure is lost, so an external rod lock is needed for fail-safe load 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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