Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-10SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-10SB 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 ACQJ20X30-10SB
The ACQJ20X30-10SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that restricts how far the rod extends. You can fine-tune the extend end position on the machine, providing a usable extend range of 20 to 30 mm from the 30 mm full stroke. The retract distance remains completely unaffected by this adjustment.
Because the piston area stays the same, output force equals a standard ACQ of this 20 mm bore, delivering 157.1 N push at 0.5 MPa. This unit includes a male M8x1.25 rod end thread for direct load coupling and a built-in magnet (-S) for tracking piston position. It uses fixed elastomer TPU bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-10SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-10SB |
|---|---|
| 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 ACQJ20X30-10SB
| 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 ACQJ20X30-10SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC milling fixture during part changeovers using the external M8x1.25 adjuster, avoiding the need to machine new stop spacers.
Carton Sealing Tensioners
Modify the pressing depth of a sealing head on a packaging line to accommodate various box flap thicknesses without swapping out the actuator.
Assembly Press Trial
Safely test bearing press-in end positions on an assembly rig by starting at a 20 mm extend depth and gradually increasing up to the 30 mm maximum.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X30-10SB the Right Cylinder?
This 20 mm bore yields 157.1 N push and 117.8 N pull at 0.5 MPa. Stepping down to a 16 mm bore drops push to 100.5 N, while a 25 mm bore raises it to 245.4 N. If your setup never requires altering the extend endpoint, a fixed-stroke ACQ cylinder is sufficient. When ordering, verify the 30 mm full stroke, 10 mm adjuster window, S magnet option, B male rod thread, and M5x0.8 port size.
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 ACQJ20X30-10SB FAQ
It provides 157.1 N push and 117.8 N pull at 0.5 MPa, 219.9 N push at 0.7 MPa, and a maximum push of 32 kgf at 1.0 MPa. The full stroke is 30 mm, but the external stop allows the extend length to be shortened by 10 mm, giving a usable extend range of 20-30 mm.
No, the adjuster limits stroke length only, so force remains identical to a standard ACQ. The retract stroke is unaffected. This cylinder uses fixed elastomer TPU bumpers at both ends for deceleration, and the -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 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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