Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X20-20B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X20-20B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 20mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke20 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X20-20B
The AirTAC ACQJ32X20-20B is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend stroke. You can fine-tune the extend end position on the machine without changing parts, yielding a usable extend range of 0-20 mm from the 20 mm full stroke. The retract stroke remains unaffected. An external adjuster screw features an M12x1.25 thread.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore. The 32 mm bore generates 402.1 N push and 301.6 N pull at 0.5 MPa. This variant includes a male M14x1.5 rod-end thread for direct load coupling, fixed NBR elastomer bumpers at each end, and a PT1/8 port. It ships without a sensor magnet but retains magnetic-switch grooves for adding solid-state or reed switches if needed later.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X20-20B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X20-20B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 20 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 ACQJ32X20-20B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 ACQJ32X20-20B Is Used
Machine Tending Setup
Dial in the exact extend reach from 0 to 20 mm during initial fixture alignment on a CNC lathe without machining new spacers.
Product Changeover Stops
Quickly alter the extend end position to accommodate varying part lengths on a packaging line, saving changeover time.
Trial End Positions
Test different extend endpoints during the commissioning of an assembly station to find the optimal pushing distance.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X20-20B the Right Cylinder?
When sizing this actuator, consider the neighbouring bores: a 25 mm unit yields 245.4 N push while a 40 mm unit provides 628.3 N at 0.5 MPa. If your extend end position never varies, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable version, confirm the 32 mm bore, 20 mm full stroke, 20 mm adjustment window, the male rod thread, and the lack of a magnet. Note that a plain compact cylinder does not hold its load on air loss; for fail-safe holding, add an external rod lock or pilot-operated check valve.
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 ACQJ32X20-20B FAQ
It delivers 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The 20 mm full stroke has a 20 mm adjustment window, giving a usable extend range of 0-20 mm.
No. The adjuster only changes the extend stroke length, so force remains identical to a standard ACQ. The retract stroke is unaffected. Deceleration relies on fixed elastomer bumpers, not an adjustable air cushion.
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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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