Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-40SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-40SB 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 ACQJ40X150-40SB
The ACQJ40X150-40SB is a double-acting JIS compact cylinder with a 40mm bore and a 150mm extended stroke. It features a male piston rod end (M14x1.5) for direct load coupling and a built-in magnet for electronic or reed switches. As a long-stroke made-to-order variant, it exceeds the standard 100mm maximum for this bore size.
An external M12x1.25 threaded stop with a lock nut limits the extend end position, providing a usable forward range of 110 to 150mm without part swaps. The retract stroke remains completely unaffected. Because the piston area stays constant, output force is identical to a standard ACQ: 628.3N push and 527.8N pull at 0.5MPa. Fixed NBR elastomer bumpers decelerate the load at travel ends.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-40SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-40SB |
|---|---|
| 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 ACQJ40X150-40SB
| 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 ACQJ40X150-40SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC milling fixture during setup, shortening the forward stroke by up to 40mm to accommodate varying raw material sizes.
Packaging Diverter Arms
Fine-tune the pusher endpoint on a packaging line during product changeover, ensuring cartons are diverted accurately without repositioning the cylinder mount.
Assembly Press Positions
Test and set trial end positions on an assembly press, tweaking the extend distance to find the optimal pressing depth before locking the nut down.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-40SB the Right Cylinder?
Choosing this 40mm bore yields 628.3N push at 0.5MPa. If you need less force, a 32mm bore provides 402.1N push; for heavier loads, a 50mm bore delivers 981.8N push. If your machine never requires end-position adjustments, a fixed-stroke ACQ cylinder is simpler and sufficient. Confirm ordering essentials: 40mm bore, 150mm full stroke, 40mm adjust 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 ACQJ40X150-40SB FAQ
This cylinder delivers 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128 kgf at 1.0MPa. The full stroke is 150mm with a 40mm adjustment window, giving a usable forward range of 110-150mm. The external adjuster uses an M12x1.25 thread.
No, the threaded stop only changes the extend stroke length, not the piston area, so force remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at each end, not adjustable air cushions. For high-speed loads, an external shock absorber is recommended.
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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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