Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 150mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke150 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75SB
The ACQJ40X150-75SB is a double-acting JIS compact cylinder built for applications requiring variable extend end positions. It features a 40mm bore and a 150mm full stroke, which exceeds the standard 100mm maximum for this bore size, classifying it as a made-to-order long-stroke variant. An external threaded stop with a lock nut (M12x1.25 adjuster thread) limits how far the rod extends, providing a usable extend range of 75 to 150mm without changing parts. The retract stroke remains completely unaffected.
Because the adjuster only alters stroke length and not piston area, the output force is identical to a standard ACQ of the same bore. At 0.5 MPa it delivers 628.3N of push force and 527.8N of pull force. This unit includes a built-in piston magnet (-S) compatible with reed or solid-state switches, and a male M14x1.5 rod-end thread (-B) for direct load coupling. Deceleration is handled by fixed NBR elastomer bumpers at both ends, operating effectively at speeds between 30 and 500mm/s.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 150 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 ACQJ40X150-75SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 ACQJ40X150-75SB Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on CNC machining centers during product changeover, shortening the extend stroke up to 75mm to accommodate varying part sizes without swapping hardware.
Packaging Tucking Arms
Fine-tune the carton flap tucking position on packaging lines while testing new carton geometries, relying on the 150mm full stroke and external stop to find the optimal end point.
Assembly Press Stops
Set precise trial end positions for light assembly presses, using the male M14x1.5 rod thread to connect directly to tooling while maintaining a consistent 628.3N push force at 0.5MPa.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-75SB the Right Cylinder?
Selecting this model involves verifying that the 75mm adjustment window covers your positional variance, with the full 150mm stroke being a non-standard long-stroke configuration. If your application never requires end-position tuning, a fixed-stroke ACQ cylinder would suffice. When sizing force, note that stepping down to a 32mm bore yields 402.1N push at 0.5MPa, while stepping up to a 50mm bore provides 981.8N push. Confirm your ordering essentials: 40mm bore, 150mm full stroke, 75mm window, S magnet, and B male rod thread. Remember that a plain compact cylinder drifts on air loss; for fail-safe load holding, integrate 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 ACQJ40X150-75SB FAQ
This cylinder provides a push force of 628.3N and a pull force of 527.8N at 0.5MPa, and 879.6N push at 0.7MPa. The maximum push force is 128kgf at 1.0MPa. It has a full stroke of 150mm with a 75mm adjustment window, allowing the usable extend range to be set anywhere from 75mm to 150mm.
The external M12x1.25 threaded stop and lock nut mechanically limit the rod extension, shortening the stroke without reducing the piston area, so force remains identical to a standard ACQ. Deceleration is provided by fixed elastomer bumpers rather than adjustable air cushions. The -S magnet allows tracking with reed or electronic switches, and the retract stroke is unaffected by the extend stop.
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Related AirTAC ACQJ Compact Cylinders
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