Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke50 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40SB
The AirTAC ACQJ32X50-40SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend stroke. You can tune the extend end position on the machine across a 10 to 50 mm usable range, while the retract stroke remains unaffected. This model includes a male M14x1.5 rod-end thread for direct coupling.
Because the adjuster only alters travel length and not piston area, output force stays identical to a standard ACQ of the same bore. The 32 mm bore yields 402.1 N push and 301.6 N pull at 0.5 MPa. Fixed elastomer bumpers decelerate the load at each end, and the integrated -S magnet works with reed or solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 50 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 ACQJ32X50-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 ACQJ32X50-40SB Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on a VMC during setup. The external stop lets operators shift the extend endpoint by up to 40 mm without swapping cylinders.
Product Changeover Stops
Adjust the end-of-stroke position on packaging line diveters when switching carton sizes. The lock nut secures the new 10 to 50 mm extend position.
Assembly Press Stations
Set trial pressing depths on automated assembly equipment. Operators can fine-tune the extend stroke on the machine while relying on the fixed bumper for end deceleration.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40SB the Right Cylinder?
If you need less push force at 0.5 MPa, the 25 mm bore provides 245.4 N; if your application requires more, step up to the 40 mm bore offering 628.3 N. A fixed-stroke ACQ is sufficient if your end position never varies. For this unit, verify the 32 mm bore, 50 mm full stroke, 40 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 ACQJ32X50-40SB FAQ
At 0.5 MPa it provides 402.1 N push and 301.6 N pull; at 0.7 MPa push is 562.9 N. Maximum push is 82 kgf at 1.0 MPa. The full stroke is 50 mm with a 40 mm window, yielding a usable extend range of 10 to 50 mm.
The M12x1.25 threaded stop with lock nut limits how far the rod extends, shortening the stroke without changing piston area, so force is identical to a standard ACQ. The fixed elastomer bumper decelerates the load near stroke end. A plain ACQ does not hold its load on air loss; install an external rod lock or pilot-operated check valve for fail-safe holding.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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