Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100B 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 ACQJ40X80-100B
The AirTAC ACQJ40X80-100B is a double-acting, single-rod JIS compact cylinder with a male-thread piston rod end (M14x1.5) that couples directly to your load. An external M12x1.25 threaded stop and lock nut limits the extend end position. With a full stroke of 80mm and a 100mm adjustment window, the usable extend range runs from 0 up to 80mm. The retract stroke remains unaffected by this external stop.
Because the piston area is unchanged, force is identical to a standard ACQ of this bore. The 16mm rod operates via PT1/8 ports within 0.15-1.0 MPa pressure limits. The body incorporates fixed elastomer bumpers at both ends rather than adjustable air cushions, and includes magnetic-switch grooves, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100B |
|---|---|
| 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 ACQJ40X80-100B
| 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 ACQJ40X80-100B Is Used
Machining Fixture Stops
Dial in the exact extend position for clamping raw castings on a CNC mill, allowing rapid accommodation of varying part thicknesses without machining new spacers.
Assembly Line Changeover
Quickly reset the extend endpoint on a packaging conveyor diverter during product family shifts, using the external lock nut to secure the new 0-80mm travel distance.
Prototype Positioning
Establish optimal trial end positions for a testing rig actuator, fine-tuning the extend stroke incrementally before finalizing the mechanical layout.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X80-100B the Right Cylinder?
For 0.5 MPa operations, the adjacent bore down (32mm) yields 402.1N push force, while the next size up (50mm) provides 981.8N, making this 40mm bore's 628.3N push output a solid middle ground. If your end position never varies, a fixed-stroke ACQ cylinder is sufficient. When ordering this adjustable unit, confirm the 40mm bore, 80mm full stroke, 100mm window, the male rod thread, and note that the -S magnet is omitted. A plain ACQ-type cylinder does not hold its load on air loss; for a fail-safe hold, specify an external rod lock or pilot-operated check valve.
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 ACQJ40X80-100B FAQ
The usable extend range is 0-80mm (80mm full stroke minus the 100mm window). Force is identical to a standard ACQ: push 628.3 N and pull 527.8 N at 0.5 MPa, push 879.6 N at 0.7 MPa, with a maximum push of 128 kgf at 1.0 MPa.
The external M12x1.25 threaded stop with lock nut mechanically limits how far the rod extends, shortening the stroke length only. It does not alter piston area, so force remains unchanged. The cylinder uses fixed elastomer bumpers for end-of-stroke deceleration, not adjustable air cushions.
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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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