Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-75S
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-75S 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 ACQJ80X70-75S
The ACQJ80X70-75S is a double-acting JIS compact cylinder featuring an external M20x1.5 threaded stop with a lock nut to fine-tune the extend end position. With a 70mm full stroke and a 75mm adjustment window, the usable extend range spans 0-70mm. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, output force matches a standard ACQ exactly, delivering 2513.2N push and 2267.8N pull at 0.5MPa. The 80mm bore uses a PT3/8 port, a Ø25mm piston rod, and fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. The built-in magnet (-S) supports both reed and solid-state switches for position sensing.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-75S Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-75S |
|---|---|
| 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 ACQJ80X70-75S
| 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 ACQJ80X70-75S Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC milling fixture without machining new spacer blocks during product changeovers.
Carton Forming Arms
Adjust the tucking arm extension on a packaging line to accommodate varying corrugated box heights on the fly.
Press Ejector Pins
Set trial ejection distances on an assembly press to find the optimal part clearance before finalizing the mechanical setup.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X70-75S the Right Cylinder?
Selecting this 80mm bore provides 2513.2N push at 0.5MPa; stepping down to a 63mm bore yields 1558.6N push, while stepping up to a 100mm bore offers 3927.0N push. If your application never requires end-position changes, a fixed-stroke ACQ cylinder is sufficient. When ordering, confirm the 80mm bore, 70mm full stroke, 75mm window, the -S magnet, 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 ACQJ80X70-75S FAQ
Force is identical to a standard ACQ: 2513.2N push and 2267.8N pull at 0.5MPa, 3518.5N push at 0.7MPa, and a maximum push of 513kgf at 1.0MPa. The full stroke is 70mm with a 75mm window, allowing a usable extend range of 0-70mm.
The M20x1.5 threaded stop with lock nut limits only the extend length, leaving the retract stroke unchanged. Deceleration relies on fixed elastomer bumpers, not adjustable air cushions. A plain cylinder does not hold loads on air loss, so use an external rod lock for fail-safe holding.
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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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