Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 45mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke45 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10SB
The ACQJ40X45-10SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend range from 35 mm up to the full 45 mm stroke directly on your equipment, while the retract stroke remains completely unaffected. Because the piston area stays constant, the output force is identical to a standard ACQ bore 40 cylinder.
This model includes a male M14x1.5 piston rod end for direct load coupling and a built-in piston magnet (-S) for position sensing. It features fixed elastomer bumpers at both ends and operates at speeds between 30 and 500 mm/s. The external adjuster utilizes an M12x1.25 thread, and the standard port size is PT1/8.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 45 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 ACQJ40X45-10SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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 ACQJ40X45-10SB Is Used
Multi-Fixture Machining
Adapts extend end positions rapidly on CNC mills when swapping part fixtures, using the stopper to tune the 35-45 mm stroke window without disassembling the actuator.
Carton Changeover
Sets precise pressing depth for varying package sizes on packaging lines, adjusting the extend stroke on-site while maintaining the full retract distance.
Assembly Press Setup
Dialing in trial insertion depths on automated assembly presses, ensuring consistent pressure without reprogramming the machine controller.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10SB the Right Cylinder?
When sizing this bore 40 actuator, consider the 628.3 N push force at 0.5 MPa. If your application requires less thrust, stepping down to a bore 32 provides 402.1 N push force. For heavier loads, moving up to a bore 50 yields 981.8 N. If your end position never varies, a fixed-stroke ACQ cylinder is sufficient; otherwise, this adjustable-stop variant prevents fabricating new parts for each setup. Confirm ordering essentials: 40 mm bore, 45 mm full stroke, 10 mm 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 ACQJ40X45-10SB FAQ
The usable extend range is 35-45 mm (a 45 mm full stroke minus up to a 10 mm window). The force is identical to a standard ACQ bore 40: 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 retract stroke is unaffected by the adjuster.
An external M12x1.25 threaded stop with a lock nut mechanically limits the extend stroke, changing only the travel length, not the force. Deceleration is handled by fixed NBR elastomer bumpers at each end, not adjustable air cushions. For fail-safe load holding on air loss, an external rod lock or pilot-operated check valve is required, as a plain cylinder will drift.
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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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