Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-20S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-20S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke40 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-20S
The AirTAC ACQJ32X40-20S is a JIS compact, double-acting single-rod cylinder featuring an external extend stop. A threaded adjuster with an M12x1.25 lock nut lets you set the extend end position on the machine, yielding a usable extend range of 20-40mm from the 40mm full stroke. The retract stroke remains completely unaffected.
Because the 32mm piston area is unchanged, output force matches a standard ACQ exactly: 402.1N push and 301.6N pull at 0.5MPa. The unit includes a -S piston magnet compatible with reed or solid-state switches, fixed NBR elastomer bumpers at both ends, a 16mm rod, and PT1/8 ports.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-20S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-20S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 40 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 ACQJ32X40-20S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 ACQJ32X40-20S Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC machining fixture during product-changeover, using the external stop to adapt travel for different part heights instantly.
Carton Sealing Tampers
Fine-tune the flap tamping end position on packaging lines to accommodate various carton profiles without replacing the cylinder or altering retraction.
Assembly Press Positions
Establish trial end positions on an assembly press, tweaking the extend stroke within the 20-40mm window to guarantee precise component seating depths.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-20S the Right Cylinder?
If you need less push force at 0.5MPa, the 25mm bore delivers 245.4N push, while stepping up to the 40mm bore provides 628.3N push. Choose this 32mm adjustable model when setup-varying fixtures require trial end positions without swapping parts. For fixed travel needs, a standard ACQ32 cylinder suffices. When ordering, confirm the 32mm bore, 40mm full stroke, 20mm window, -S magnet, and 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 ACQJ32X40-20S FAQ
This 32mm bore cylinder has a 40mm full stroke with a 20mm adjustable window, giving a usable extend range of 20-40mm. Force is identical to a standard ACQ: 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa.
The external M12x1.25 threaded stop with lock nut limits only the extend stroke length, leaving retract unaffected. It does not change piston area, so force remains unchanged. Deceleration relies on fixed NBR elastomer bumpers, not adjustable air cushions. The built-in -S magnet works with reed or electronic solid-state switches.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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