Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 80mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke80 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100SB
The AirTAC ACQJ40X80-100SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. The full stroke is 80 mm, and the 100 mm adjustment window allows you to fine-tune the usable extend range from 0 mm up to 80 mm directly on the machine. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 628.3 N of push force at 0.5 MPa. The cylinder body features integrated magnetic-switch grooves and fixed elastomer bumpers at both ends for compact shock absorption. This configuration includes a male-thread piston rod end (M14x1.5) for direct load coupling and a built-in magnet for position sensing.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 80 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| 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 | M8×1.25 (F) / M14×1.5 (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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100SB Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on machining fixtures during product-changeover, accommodating varying part sizes without swapping out cylinder hardware.
Carton Sealing Jaws
Adjust the extend end position on packaging line sealing jaws to match different carton heights on the fly, ensuring consistent sealing pressure.
Bending & Forming Stops
Set precise metal-forming or bending limits on trial end positions, allowing operators to tweak the 0-80 mm extend stroke for custom profiles.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100SB the Right Cylinder?
When sizing this 40 mm bore cylinder, consider the adjacent options: the 32 mm bore provides 402.1 N push force at 0.5 MPa, while the 50 mm bore offers 981.8 N. Choose this ACQJ40X80-100SB if your application requires variable extend end positions within a 0-80 mm range. If the extend position is fixed and never needs on-site tuning, a standard ACQ40X80 cylinder will suffice. To order, confirm the 40 mm bore, 80 mm full stroke, 100 mm adjustment 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 ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100SB FAQ
The usable extend range is 0-80 mm. Force is identical to a standard ACQ: 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa.
The external M12x1.25 threaded stop with lock nut limits only the extend length; force is unchanged because the piston area remains the same. Fixed NBR bumpers absorb end-of-stroke impact. Note that this cylinder will not hold its load on air loss, so an external rod lock or pilot-operated check valve is required for fail-safe holding.
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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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