Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-20
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-20 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 30mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke30 mm
- Port sizeM5×0.8
- Adjuster threadM8×1.25
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-20
The AirTAC ACQJ20X30-20 is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend stroke anywhere from 10mm up to the full 30mm on the machine, while the retract stroke remains completely unaffected. It features a 20mm bore, a 10mm piston rod, and an M5x0.8 port.
Because the adjuster only alters travel length and not piston area, the output force is identical to a standard ACQ of this size, delivering 157.1N push at 0.5 MPa. The body incorporates fixed elastomer TPU bumpers at both ends for end-of-stroke deceleration and includes magnetic-switch grooves, though this specific unit ships without a magnet.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-20 Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-20 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 30 mm |
| Adjuster thread | M8×1.25 |
| Port size | M5×0.8 |
| 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 | M5×0.8 (F) / M8×1.25 (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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-20
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-20 Is Used
Machining Fixture Stops
Dial in the extend position from 10 to 30mm on a CNC machining fixture to accommodate raw material thickness variations without swapping parts.
Carton Changeover Guides
Adjust the end stop on a packaging conveyor guide rail during product format changeovers to hit different carton widths rapidly.
Prototype Press Testing
Set trial end positions on a light-duty assembly press to test engagement depths before finalizing a fixed-stroke design.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-20 the Right Cylinder?
If you need slightly less thrust, the 16mm bore variant provides 100.5N push at 0.5MPa, whereas stepping up to the 25mm bore yields 245.4N for heavier tasks. A fixed-stroke ACQ is sufficient if your end position never requires shifting; choose this adjustable model specifically for setups demanding variable extend endpoints. Confirm your ordering essentials: 20mm bore, 30mm full stroke, 20mm window, female rod thread, and no magnet.
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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-20 FAQ
The usable extend range is 10-30mm (a 30mm full stroke shortened by up to a 20mm window). It delivers 157.1N push and 117.8N pull at 0.5MPa, 219.9N push at 0.7MPa, and a maximum push of 32kgf at 1.0MPa. The retract stroke stays fixed at 30mm.
No, the M8x1.25 external threaded stop only changes the extend stroke length, leaving piston area and force identical to a standard ACQ. Deceleration relies on fixed elastomer TPU bumpers at each end, not adjustable air cushions. For high-speed loads, add an external shock absorber.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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