Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40S
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ80 mm
- Full stroke75 mm
- Port sizePT3/8
- Adjuster threadM20×1.5
About the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40S
The ACQJ80X75-40S is a double-acting JIS compact cylinder with an external threaded stop and lock nut on the rod-end side. This mechanism lets you limit the extend stroke, providing a usable extend range of 35-75 mm (a 75 mm full stroke shortened by up to a 40 mm window). The retract stroke remains completely unaffected. Because the piston area stays the same, output force equals a standard ACQ of this bore.
This 80 mm bore unit delivers 2513.2 N push force at 0.5 MPa and features a 25 mm piston rod with a female M16x2.0 rod-end thread. It includes a built-in piston magnet (-S) compatible with reed or solid-state switches, plus fixed NBR elastomer bumpers at both ends. Operating pressure spans 0.15-1.0 MPa with a PT3/8 port.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40S Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 75 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 ACQJ80X75-40S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 ACQJ80X75-40S Is Used
Machining Fixture Clamps
Dial in the exact clamping extension on a CNC machining fixture during setup, avoiding the need to machine custom spacer rings for every new part run.
Product Changeover Diverters
Quickly reposition a packaging line diverter gate to accommodate varying carton lengths, utilizing the 35-75 mm adjustable window on the fly.
Assembly Press End-Stops
Establish trial end positions for an assembly press without swapping mechanical stops, ensuring perfect seating force before finalizing the process.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40S the Right Cylinder?
Choosing this 80 mm bore provides 2513.2 N push at 0.5 MPa. Stepping down to a 63 mm bore drops push to 1558.6 N, while a 100 mm bore raises it to 3927.0 N. If your machine never requires shifting the end position, a fixed-stroke ACQ80 cylinder is simpler and suffices. When ordering, verify the 75 mm full stroke, the 40 mm adjuster window, the -S magnet, and the default female M16x2.0 rod 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 ACQJ80X75-40S FAQ
It delivers 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 full stroke is 75 mm with a 40 mm adjustable window, giving a usable extend range of 35-75 mm. The external adjuster features an M20x1.5 thread.
No, the external stop alters only the extend length, not the piston area, so force remains identical to a standard ACQ. Deceleration is handled by fixed elastomer bumpers at each end rather than adjustable air cushions. For high kinetic energy loads, use an external shock absorber or slow the approach speed.
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1-Year Warranty
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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