Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40SB
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40SB 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 ACQJ80X75-40SB
The AirTAC ACQJ80X75-40SB 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 without changing parts, achieving a usable extend range of 35 to 75 mm. The retract stroke remains unaffected by this adjustment.
Because the piston area stays the same, the output force is identical to a standard ACQ of this 80 mm bore. The cylinder uses a PT3/8 port and a 25 mm piston rod with an M22x1.5 male thread for direct load coupling. It includes a fixed elastomer bumper at each end and a built-in piston magnet for position sensing.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40SB Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40SB |
|---|---|
| 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 ACQJ80X75-40SB
| 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 ACQJ80X75-40SB Is Used
Machining Fixture Stops
Dial in the exact extend position on a CNC lathe loader without machining custom spacers, shortening the stroke from 75 mm down to 35 mm as needed for different part lengths.
Product Changeover Diverter
Adjust the extend stop on a packaging line diverter arm during product format changes, using the external M20x1.5 adjuster thread to set the new end point rapidly.
Press Trial Positions
Set trial end positions on an assembly press to test contact forces, relying on the 3518.5 N push at 0.7 MPa before locking the nut for production runs.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-40SB the Right Cylinder?
When sizing this 80 mm bore unit, note it delivers 2513.2 N push and 2267.8 N pull at 0.5 MPa. Stepping down to a 63 mm bore yields 1558.6 N push, while stepping up to a 100 mm bore provides 3927.0 N push at the same pressure. If your application requires a fixed end position every cycle without variation, a standard ACQ cylinder will suffice. To order this adjustable version, confirm the 80 mm bore, 75 mm full stroke, 40 mm window, the S magnet option, and the B male 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 ACQJ80X75-40SB FAQ
The force is identical to a standard ACQ bore 80. At 0.5 MPa it provides 2513.2 N push and 2267.8 N pull. At 0.7 MPa push is 3518.5 N, and the maximum push is 513 kgf at 1.0 MPa. The usable extend range is 35 to 75 mm, set by the 40 mm adjustable window.
The external M20x1.5 threaded stop and lock nut limit the extend stroke only, meaning the retract stroke is unaffected. The adjuster changes stroke length only, not force. The cylinder uses fixed elastomer bumpers at each end, and the S magnet option works with reed or electronic solid-state switches.
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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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