Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20B 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 ACQJ32X50-20B
The AirTAC ACQJ32X50-20B is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend stroke. You can fine-tune the usable extend range from 30 to 50 mm on the machine, while the retract stroke remains unaffected. It features a 32 mm bore, a 16 mm rod, and a male M14x1.5 rod-end thread for direct load coupling.
Because the piston area is unchanged, force is identical to a standard ACQ of this bore, delivering 402.1 N of push at 0.5 MPa. The body includes fixed NBR elastomer bumpers at each end for end-of-stroke deceleration and retains magnetic-switch grooves, though this specific configuration ships without a magnet. Operating pressure spans 0.15 to 1.0 MPa, and the PT1/8 port handles standard pneumatic supply.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20B |
|---|---|
| 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 ACQJ32X50-20B
| 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 ACQJ32X50-20B Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on machining fixtures without swapping cylinders when raw material thicknesses vary slightly.
Assembly Line Stops
Modify product-changeover stop positions on a conveyor assembly line quickly to accommodate different package widths.
Carton Sealing Presses
Establish trial end positions on packaging sealing presses to find the optimal compression depth for various carton sizes.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-20B the Right Cylinder?
For lower force needs, the 25 mm bore provides 245.4 N of push at 0.5 MPa, whereas stepping up to a 40 mm bore yields 628.3 N. If your application never requires end-position variance, a fixed-stroke ACQ32X50 is simpler and sufficient. When ordering this adjustable unit, verify the 32 mm bore, 50 mm full stroke, 20 mm adjuster window, the male M14x1.5 rod thread, and confirm that no internal magnet is needed for your sensing setup.
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 ACQJ32X50-20B FAQ
It delivers 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, with a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 30-50 mm via a 20 mm adjustment window, the external adjuster thread is M12x1.25, and the port size is PT1/8.
The external threaded stop limits how far the rod extends without changing the piston area, meaning force remains identical to a standard ACQ. The retract stroke is unaffected, and fixed elastomer bumpers decelerate the piston near both ends. Note that this model lacks a sensor magnet, and a plain 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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