Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-10S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke50 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-10S
The ACQJ40X50-10S is a double-acting JIS compact cylinder with a 40mm bore and 50mm full stroke. An external M12x1.25 threaded stop and lock nut restricts the extend length, providing a usable forward range of 40 to 50mm. Retract travel remains fixed. Because the piston area is unchanged, output force exactly matches a standard ACQ of this size.
This unit features a 16mm rod, a female M8x1.25 rod end, and a PT1/8 port. It includes a built-in piston magnet for position sensing, compatible with reed or solid-state switches. Elastomer NBR bumpers at both ends absorb end-of-travel impacts, making it ideal for tight spaces where fixed stops are impractical.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-10S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 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 (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 ACQJ40X50-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | 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 ACQJ40X50-10S Is Used
Machining Fixture Stops
Dial in the exact 40-50mm extend position on a CNC lathe loader during setup, avoiding the need to machine custom physical spacers for each part.
Product Changeover Pins
Quickly alter the extended locating pin depth on a packaging line when switching between carton sizes, using the external lock nut for rapid changeover.
Assembly Press Testing
Test trial end positions on an electronic module assembly press, tweaking the stroke length on the machine to find the optimal insertion depth.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-10S the Right Cylinder?
Selecting this bore gives 628.3N push and 527.8N pull at 0.5MPa. If your application requires less force, the 32mm bore provides 402.1N push, while the 50mm bore offers 981.8N push for heavier loads. A fixed-stroke ACQ is sufficient if your end position never varies. When ordering, confirm the 40mm bore, 50mm full stroke, 10mm adjust window, the -S magnet option, and the female M8x1.25 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 ACQJ40X50-10S 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 50mm with a 10mm adjust window, yielding a usable extend range of 40-50mm. The piston rod is 16mm with a female M8x1.25 thread, and the adjuster thread is M12x1.25.
The external threaded stop limits only the extend length, leaving retract unaffected and keeping force identical to a standard ACQ. It uses fixed elastomer NBR bumpers at both ends for deceleration rather than adjustable air cushions. The built-in magnet works with reed or electronic switches, though the cylinder will not hold its load on air loss without an external rod lock.
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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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