Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100 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 ACQJ40X80-100
The AirTAC ACQJ40X80-100 is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend end position. With a full stroke of 80 mm and a 100 mm adjustment window, you can fine-tune the usable extend range from 0 up to 80 mm directly on your equipment. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, output force remains identical to a standard ACQ of the same bore, delivering 628.3 N push at 0.5 MPa. The unit utilizes a 16 mm piston rod, an M8x1.25 female rod-end thread, and a PT1/8 port. Fixed NBR elastomer bumpers at both ends manage end-of-stroke deceleration, while the body retains sensor grooves for adding external switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100 |
|---|---|
| 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 ACQJ40X80-100
| 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 ACQJ40X80-100 Is Used
Machining Fixture Clamps
Dial in the exact clamping reach from 0 to 80 mm during part changeovers without machining new spacer blocks.
Assembly Line Stops
Adjust the physical extend barrier on the fly to accommodate varying product lengths on a single conveyor line.
Prototype Positioning
Find the ideal end-of-stroke location for a new automated test rig by threading the external stop in or out as needed.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100 the Right Cylinder?
If your application requires less push force, the adjacent ACQJ32 bore provides 402.1 N push at 0.5 MPa, whereas stepping up to the ACQJ50 bore yields 981.8 N. A fixed-stroke ACQ cylinder is sufficient if your end position never varies, but this ACQJ40X80-100 is optimal when setups require frequent on-machine adjustments. When ordering, verify the 40 mm bore, 80 mm full stroke, 100 mm window, female rod thread, and whether a -S magnet is needed for sensing.
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 ACQJ40X80-100 FAQ
It provides 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 usable extend range is 0-80 mm, created by a 100 mm adjustment window on an 80 mm full stroke.
The external M12x1.25 threaded stop with a lock nut limits only the extend stroke length, leaving the retract stroke untouched. Force is identical to a standard ACQ because the piston area is unchanged. The cylinder uses fixed NBR elastomer bumpers for deceleration, so for high-speed loads, an external shock absorber is recommended.
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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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