Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100 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 ACQJ40X90-100
The AirTAC ACQJ40X90-100 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. With a full stroke of 90 mm and a 100 mm adjustment window, you can fine-tune the usable extend range from 0 mm up to 90 mm directly on the machine. The retract stroke remains completely unaffected by this mechanism. An M12x1.25 adjuster thread sets the stop position.
Because the piston area is unchanged, output force is identical to a standard ACQ of the same bore. This 40 mm bore unit generates 628.3 N of push force and 527.8 N of pull force at 0.5 MPa, peaking at 128 kgf at 1.0 MPa. It features a 16 mm piston rod, PT1/8 porting, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100 |
|---|---|
| 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 ACQJ40X90-100
| 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 ACQJ40X90-100 Is Used
Machining Fixture Stops
Dial in the exact clamping extension on a CNC machining fixture without machining new spacer blocks.
Packaging Format Changeover
Rapidly adjust the pusher rod end position during product size changeovers on a packaging line.
Assembly Press Trial
Safely test and incrementally extend the working stroke on an assembly press during initial prototype runs.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100 the Right Cylinder?
If you need slightly less thrust, the 32 mm bore yields 402.1 N push at 0.5 MPa, whereas stepping up to a 50 mm bore provides 981.8 N. A fixed-stroke ACQ cylinder is adequate if your end position never requires tweaking. When ordering this adjustable variant, confirm the 40 mm bore, 90 mm full stroke, 100 mm window, female M8x1.25 rod-end thread, and whether a -S magnet is needed for switch tracking.
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 ACQJ40X90-100 FAQ
It delivers 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 0-90 mm because the 100 mm adjustment window allows shortening the 90 mm full stroke. Retract stroke is unaffected.
No, the adjuster only changes the extend stroke length, leaving the 628.3 N push force identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at each end, not adjustable air cushions. Note that this model ships without a sensor magnet.
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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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