Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20B
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20B 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 ACQJ80X70-20B
The AirTAC ACQJ80X70-20B 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 extend stroke on the machine across a usable range of 50 to 70 mm, while the RETRACT stroke remains unaffected. The external adjuster features an M20x1.5 thread.
Because the piston area is unchanged, the force output is identical to a standard ACQ of the same bore, delivering a push of 2513.2 N and a pull of 2267.8 N at 0.5 MPa. The cylinder body includes integrated sensor grooves, though this specific configuration ships without a magnet. It relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20B Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20B |
|---|---|
| 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 ACQJ80X70-20B
| 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 ACQJ80X70-20B Is Used
Multi-Product Machining Stops
Adjust the extend position for different raw material lengths on a CNC lathe loading station without machining new stop collars.
Carton Size Changeover
Tune the extend stroke rapidly when switching between varying box dimensions on a packaging line flap folder.
Assembly Press Setup
Dial in the exact 50 to 70 mm extend position during initial commissioning of an automated press to find the optimal pressing depth.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-20B the Right Cylinder?
This 80 mm bore provides a push force of 2513.2 N at 0.5 MPa. If your application requires less force, consider the 63 mm bore offering 1558.6 N; for heavier loads, the 100 mm bore yields 3927.0 N. If the end position never varies, a fixed-stroke ACQ cylinder is sufficient. When ordering this unit, confirm the 70 mm full stroke, the 20 mm adjustable window, the male M22x1.5 rod thread, and the PT3/8 port.
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 ACQJ80X70-20B FAQ
The usable extend range is 50 to 70 mm (full stroke 70 mm minus a 20 mm window). The force is identical to a standard ACQ: push is 2513.2 N and pull is 2267.8 N at 0.5 MPa, 3518.5 N push at 0.7 MPa, and max push is 513 kgf at 1.0 MPa.
The external M20x1.5 threaded stop limits the extend stroke only, meaning force is unchanged. The cylinder uses a fixed elastomer bumper for deceleration, not an adjustable air cushion. It will not hold a load on air loss, so 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 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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