Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20S
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20S 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 ACQJ80X70-20S
The AirTAC ACQJ80X70-20S 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 extend stroke on the machine across a usable range of 50 to 70 mm, while the retract stroke remains unaffected. This on-machine tuning eliminates the need to swap physical parts during product changeovers.
Because the adjuster only restricts travel length and not piston area, the output force is identical to a standard ACQ of the same bore. The 80 mm bore generates a push force of 2513.2 N at 0.5 MPa. It incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration and includes a built-in piston magnet for use with reed or electronic solid-state switches.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20S Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20S |
|---|---|
| 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 ACQJ80X70-20S
| 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 ACQJ80X70-20S Is Used
Machining Center Stops
Dial in the extend position from 50 to 70 mm on CNC fixtures to accommodate varying raw material widths without machining new spacers.
Carton Forming Adjustments
Shift the extend end-stop on the fly during packaging line changeovers to handle different box depths accurately.
Press Trial Positions
Set trial end positions on light assembly presses, utilizing the full 70 mm stroke or backing it off up to 20 mm to test sensor alignment.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20S the Right Cylinder?
When sizing this 80 mm bore actuator, verify your force needs against the 2513.2 N push and 2267.8 N pull figures at 0.5 MPa. If your application requires less thrust, stepping down to a 63 mm bore yields a 1558.6 N push, whereas moving up to a 100 mm bore provides 3927.0 N of push force. If your end-position never varies, a fixed-stroke ACQ cylinder will suffice. For ordering, confirm the 80 mm bore, 70 mm full stroke, 20 mm adjustment window, the -S magnet requirement, and the default female M16x2.0 rod-end thread.
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 ACQJ80X70-20S FAQ
The usable extend range is 50 to 70 mm (70 mm full stroke minus the 20 mm window). Force is identical to a standard ACQ: push is 2513.2 N and pull is 2267.8 N at 0.5 MPa, push is 3518.5 N at 0.7 MPa, and the maximum push is 513 kgf at 1.0 MPa.
An external M20x1.5 threaded stop with a lock nut limits the extend travel without altering the piston area, so force remains unchanged. The cylinder uses fixed elastomer bumpers for deceleration, not adjustable air cushions. Note that a plain ACQ-type does not hold its load on air loss; for fail-safe load holding, an external rod lock or pilot-operated check valve is required.
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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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