Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50S 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 ACQJ40X150-50S
The AirTAC ACQJ40X150-50S is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. This long-stroke made-to-order variant provides a full 150mm of travel, exceeding the 100mm standard maximum for this bore. By turning the M12x1.25 adjuster screw, you can fine-tune the usable extend range from 100mm up to 150mm directly on the machine, while the retract stroke remains completely unaffected.
Because the adjuster only shortens the travel distance and not the 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. The body incorporates fixed elastomer bumpers at both ends for end-of-stroke deceleration and includes a built-in piston magnet (-S) compatible with reed or electronic solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50S |
|---|---|
| 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 ACQJ40X150-50S
| 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 ACQJ40X150-50S Is Used
Machining Fixture Stops
Dial in the extend position from 100 to 150mm on CNC machining fixtures to accommodate varying raw material lengths without machining new stop blocks.
Carton Changeover Pushers
Adjust the extend end stop on packaging line pushers to handle different carton depths on the fly, avoiding mechanical rebuilds during format changes.
Assembly Press Trials
Set trial end positions for pressing operations on automated assembly lines, tweaking the 50mm window to find the exact engagement depth before locking the nut.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-50S the Right Cylinder?
When sizing this unit, consider the neighbouring bores: a 32mm bore provides 402.1N push at 0.5 MPa, while a 50mm bore yields 981.8N. This 40mm bore hits a middle ground with 628.3N push and 527.8N pull at 0.5 MPa, peaking at 128 kgf maximum push at 1.0 MPa. If your extend position never varies, a fixed-stroke ACQ cylinder is sufficient. If you need on-machine end-position tuning for product changeovers, select this ACQJ model by confirming the 40mm bore, 150mm full stroke, 50mm adjustable window, the -S magnet option, and the default female M8x1.25 rod-end 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 ACQJ40X150-50S FAQ
This cylinder provides 628.3N push and 527.8N pull at 0.5 MPa, 879.6N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The full stroke is 150mm, and with the 50mm adjustable window, the usable extend range is 100-150mm.
The external M12x1.25 threaded stop with lock nut limits how far the rod extends, shortening the stroke without changing the piston area, so force remains identical to a standard ACQ. Deceleration is handled by fixed elastomer bumpers at both ends, not an adjustable air cushion, so external shock absorbers are recommended for high-energy loads.
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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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