Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100SB 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 ACQJ40X90-100SB
The AirTAC ACQJ40X90-100SB 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 usable extend stroke anywhere from 0 up to 90mm directly on the machine without swapping parts, 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 model includes the -S magnet for electronic or reed switches and the -B male piston rod thread (M14x1.5) for direct load coupling. It uses a PT1/8 port and a 16mm rod. The fixed NBR elastomer bumpers absorb impact at both ends, and the external adjuster utilizes an M12x1.25 thread for precise positioning.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100SB |
|---|---|
| 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 ACQJ40X90-100SB
| 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 ACQJ40X90-100SB Is Used
Tooling Changeover
Dial in the extend stop during product family changeovers on machining fixtures to set new clamping depths without machining new spacers.
Package Diverter Setup
Adjust the pusher rod extension on a packaging line diverter to safely handle varying carton widths on the fly.
Assembly Press Tria
Test and set precise end positions for pressing bearings on an assembly line, tweaking the 0-90mm range until the fit is perfect.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100SB the Right Cylinder?
If you need less push force, the 32mm bore delivers 402.1N at 0.5MPa; stepping up to the 50mm bore yields 981.8N. Choose this 40mm option when your application requires 628.3N of push force and on-the-fly extend length tuning. If the end position never varies, a fixed-stroke ACQ cylinder is sufficient. To order, confirm the 40mm bore, 90mm full stroke, 100mm adjustment window, S magnet, and 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 ACQJ40X90-100SB FAQ
The push force is 628.3N at 0.5MPa and 879.6N at 0.7MPa; the pull force is 527.8N at 0.5MPa; and the maximum push force is 128kgf at 1.0MPa. The full stroke is 90mm, the adjustment window is 100mm, and the usable extend range is 0-90mm.
The M12x1.25 external stop changes the extend stroke length only, so the force remains identical to a standard ACQ. The fixed elastomer bumpers decelerate the rod near stroke ends, but a plain cylinder will not hold a load on air loss—use an external rod lock for fail-safe holding.
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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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