Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 30mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke30 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20SB
The AirTAC ACQJ32X30-20SB 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 directly on your machinery without swapping parts. The full stroke is 30mm, and with the 20mm adjustment window, the usable extend range spans 10mm up to 30mm. The retract stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, output force is identical to a standard ACQ of the same bore, delivering 402.1N push and 301.6N pull at 0.5MPa. This SB variant includes a built-in piston magnet for position sensing and a male rod-end thread (M14x1.5) for direct load coupling. It uses a PT1/8 port, runs at speeds of 30-500mm/s, and relies on fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 30 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 ACQJ32X30-20SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×30 | 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 ACQJ32X30-20SB Is Used
Product Changeover Stops
Quickly dial in a new extended end position from 10 to 30mm when switching between part families on a packaging line, avoiding time-consuming mechanical spacer swaps.
Trial End Positions
Perfect for prototyping and testing clamping depths on CNC fixtures, allowing operators to微调 the exact extend stop without disassembling the cylinder.
Varying Assembly Heights
Accommodates different stack heights or component sizes on automated assembly presses by simply turning the external M12x1.25 adjuster to shorten the stroke.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X30-20SB the Right Cylinder?
If your application only needs a fixed 30mm extend and retract, a standard ACQ32x30 cylinder is sufficient. However, if your setup requires varying end positions or product-changeover stops, this ACQJ32X30-20SB is the correct choice. When sizing, note the 32mm bore provides 402.1N push force at 0.5MPa. A smaller 25mm bore yields 245.4N push, which may be inadequate for higher resistance loads, whereas a larger 40mm bore provides 628.3N push if you need extra thrust. To order, confirm the 32mm bore, 30mm full stroke, 20mm adjustable window, the S magnet option, and the 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 ACQJ32X30-20SB FAQ
The usable extend range is 10-30mm (a 30mm full stroke minus the 20mm window). Force is identical to a standard ACQ32: push is 402.1N and pull is 301.6N at 0.5MPa, push is 562.9N at 0.7MPa, and maximum push is 82kgf at 1.0MPa. The retract stroke remains the full 30mm.
An external M12x1.25 threaded stop with a lock nut mechanically limits how far the rod extends, shortening the stroke without changing piston area or force. The cylinder uses fixed NBR elastomer bumpers for deceleration, not adjustable air cushions. The included -S magnet works with both reed and electronic solid-state switches for position detection.
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Related AirTAC ACQJ Compact Cylinders
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