Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-10S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke90 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-10S
The AirTAC ACQJ40X90-10S is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You get a usable extend range of 80 to 90 mm, set by the 10 mm adjustment window, while the retract stroke remains completely unaffected. Because the piston area stays the same, output force is identical to a standard ACQ of this bore.
This 40 mm bore actuator pushes with 628.3 N and pulls with 527.8 N at 0.5 MPa. It features a 16 mm rod, a PT1/8 port, and fixed elastomer bumpers at both ends rather than adjustable pneumatic cushions. The included -S magnet works with reed or solid-state switches via the integrated body grooves for precise position sensing.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-10S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 90 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 ACQJ40X90-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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 ACQJ40X90-10S Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC machining center during setup, using the external stop to accommodate different raw casting lengths without swapping cylinders.
Packaging Changeover
Adjust the extend endpoint on a carton sealing machine to handle varied box depths, relying on the 10 mm window to shift the pressing position rapidly between production runs.
Assembly Press Positioning
Set trial end positions for pressing bearings on an automated assembly line, tweaking the stroke by a few millimeters to accommodate part tolerances before locking the nut down.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-10S the Right Cylinder?
If you need slightly less push, the 32 mm bore yields 402.1 N at 0.5 MPa; stepping up to the 50 mm bore provides 981.8 N. Choose this adjustable model only if your end position requires on-machine fine-tuning, otherwise a fixed-stroke ACQ suffices. Confirm your ordering details including the 40 mm bore, 90 mm full stroke, 10 mm window, -S magnet, and the default female M8x1.25 rod-end 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 ACQJ40X90-10S FAQ
At 0.5 MPa it provides a push force of 628.3 N and a pull force of 527.8 N. At 0.7 MPa the push force is 879.6 N, with a maximum push of 128 kgf at 1.0 MPa. The usable extend range is 80 to 90 mm, created by the 10 mm adjustment window subtracted from the 90 mm full stroke.
The external M12x1.25 threaded stop with lock nut physically catches the rod to shorten the extend stroke, meaning force remains identical to a standard ACQ since piston area is unchanged. The retract stroke is unaffected, and deceleration relies on fixed elastomer bumpers rather than an adjustable air cushion.
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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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