Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke100 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75
The AirTAC ACQJ40X100-75 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 100 mm and an adjustment window of 75 mm, you can tune the usable extend range from 25 mm up to 100 mm directly on the machine. The RETRACT stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 628.3 N of push force at 0.5 MPa. This unit features a 16 mm piston rod, a PT1/8 port, and fixed elastomer bumpers at both ends for end-of-stroke deceleration. The body includes magnetic-switch grooves, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 100 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 ACQJ40X100-75
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 ACQJ40X100-75 Is Used
Product Changeover Stops
Rapidly reposition the extend stop within the 25-100 mm range during packaging line format changes to accommodate varying carton sizes without disassembling the cylinder.
Trial End Positions
Dial in the exact clamping distance on a CNC fixture during first-article testing, locking the external M12x1.25 adjuster nut once the optimal position is found.
Adjustable Diverter Arms
Control how far a diverter pushes packages on a sorting conveyor by tweaking the extend limit on the fly, allowing quick adaptation to different product widths.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X100-75 the Right Cylinder?
If sizing down, the 32 mm bore yields 402.1 N push at 0.5 MPa, whereas stepping up to the 50 mm bore provides 981.8 N. This 40 mm bore hits a solid middle ground at 628.3 N. If your end position is permanently fixed, a standard ACQ cylinder suffices; choose this ACQJ model when setups vary or trial positions are needed. When ordering, verify the 40 mm bore, 100 mm full stroke, 75 mm window, the female M8x1.25 rod-end thread, and confirm whether the -S magnet option is required for your sensors.
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 ACQJ40X100-75 FAQ
The usable extend range is 25-100 mm (100 mm full stroke minus the 75 mm window). The force is identical to a standard ACQ: push is 628.3 N and pull is 527.8 N at 0.5 MPa, push is 879.6 N at 0.7 MPa, and maximum push is 128 kgf at 1.0 MPa. The retract stroke remains unaffected.
The external M12x1.25 threaded stop with a lock nut mechanically limits how far the rod extends, changing only the stroke length, not the force. Deceleration is handled by fixed NBR elastomer bumpers at each end, not an adjustable air cushion. Note that this cylinder will not hold a load if air pressure is lost; use an external rod lock for fail-safe holding.
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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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