Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50SB 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 ACQJ40X150-50SB
The AirTAC ACQJ40X150-50SB is a double-acting JIS compact cylinder with an external extend stop, allowing you to fine-tune the end position directly on your equipment. This long-stroke made-to-order variant provides a 150mm total travel. By turning the M12x1.25 adjuster screw with its lock nut, you can shorten the outward stroke by up to 50mm, yielding a usable extend range of 100-150mm. The return stroke remains fixed at its full length. Because the piston area is unchanged, output force matches a standard ACQ exactly, delivering 628.3N push at 0.5MPa.
This unit includes a male M14x1.5 rod end for direct load coupling and a built-in piston magnet (-S) for position sensing. The magnet is compatible with both reed and electronic solid-state switches. Deceleration relies on a fixed NBR elastomer bumper at each end rather than an adjustable air cushion. Operating pressure spans 0.15-1.0MPa, and the body uses a PT1/8 port.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50SB |
|---|---|
| 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 ACQJ40X150-50SB
| 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 ACQJ40X150-50SB Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on a CNC milling fixture during setup, shortening the extend stroke from 150mm down to 100mm to accommodate varying raw stock thicknesses.
Carton Sealing Stops
Adjust the sealing head downward stop on a packaging line for product changeover, ensuring precise contact without rebuilding the pneumatic assembly.
Assembly Press Trials
Test multiple insertion depths on an assembly press by tweaking the external lock nut, finding the optimal end position before finalizing the mechanical hard stop.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50SB the Right Cylinder?
If you need less push force, the ACQJ32 bore yields 402.1N at 0.5MPa, while the next size up, ACQJ50, provides 981.8N. Choose this 40mm bore when your application requires approximately 628N of push force and on-site end-position tuning without swapping parts. If exact 150mm extend and retract distances are permanently fixed, a standard ACQ cylinder suffices. Confirm your ordering essentials: 40mm bore, 150mm full stroke, 50mm window, S for the magnet, and B for the 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 ACQJ40X150-50SB FAQ
It 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, with a 50mm window allowing an adjustable extend range of 100-150mm.
No, the external M12x1.25 stop only limits how far the rod extends, leaving piston area and force unchanged. The fixed NBR elastomer bumper handles deceleration at the ends, and the -S magnet works with reed or solid-state switches.
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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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