Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30B 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 ACQJ40X150-30B
The ACQJ40X150-30B is a double-acting JIS compact cylinder featuring a 150mm stroke and a male M14x1.5 piston rod. This long-stroke made-to-order variant exceeds the standard 100mm maximum for bore 40, utilizing the extended range up to 300mm. An external M12x1.25 threaded stop with a lock nut lets you fine-tune the extend end position on the machine without swapping parts. The usable extend range spans 120mm to 150mm, while the retract stroke remains completely unaffected.
Because the adjuster only limits travel, the piston area stays the same, meaning force is identical to a standard ACQ. You get 628.3N push and 527.8N pull at 0.5MPa, or 879.6N push at 0.7MPa, with a maximum push of 128kgf at 1.0MPa. The body uses a PT1/8 port and fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. While it lacks a sensor magnet, the integrated grooves remain ready for reed or solid-state switches if needed later.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30B |
|---|---|
| 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 ACQJ40X150-30B
| 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 ACQJ40X150-30B Is Used
Machining Fixture Stops
Dial in the extend position precisely on a CNC lathe loader to accommodate raw stock of varying lengths without fabricating custom hard stops.
Product Changeover Diverters
Quickly reposition the extend endpoint on a packaging line guide rail when switching between different carton sizes, minimizing line downtime.
Prototype Assembly Probes
Iteratively test and set the exact extension depth for a pressing operation during R&D trials before finalizing a fixed mechanical stop.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30B the Right Cylinder?
When sizing this actuator, consider the 40mm bore against its neighbors. Dropping to a 32mm bore yields 402.1N push at 0.5MPa, while stepping up to 50mm provides 981.8N, so 628.3N is your middle ground. If your extend endpoint never varies, a fixed-stroke ACQ cylinder is simpler and avoids the adjuster overhang. For this configuration, confirm the 150mm length, 30mm window, male M14x1.5 rod, and the lack of a magnet. Note that a plain compact cylinder drifts if air pressure is lost; utilize an external rod lock or pilot-operated check valve for fail-safe load holding.
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 ACQJ40X150-30B FAQ
This 40mm bore cylinder delivers 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The full stroke is 150mm, and with the 30mm window, the usable extend range is 120mm to 150mm.
The M12x1.25 threaded stop with lock nut limits the extend travel without changing the piston area, so force remains identical to a standard ACQ. Deceleration relies on fixed NBR elastomer bumpers at each end, not an adjustable air cushion. The retract stroke is unaffected by the extend adjuster.
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Related AirTAC ACQJ Compact Cylinders
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