Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X10-10SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X10-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 10mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke10 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 ACQJ20X10-10SB
The AirTAC ACQJ20X10-10SB is a double-acting JIS compact cylinder with an external extend stop, allowing you to fine-tune the forward end position directly on your machine. With a 10mm full stroke and a 10mm adjustment window, the usable extend range is 0-10mm. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, output force is identical to a standard ACQ of the same bore, delivering 157.1N push at 0.5MPa. This version includes a male M8x1.25 rod thread (-B) for direct load coupling and a built-in piston magnet (-S) for position sensing. It features fixed elastomer bumpers at both ends and operates at speeds from 30 to 500mm/s.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X10-10SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X10-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 10 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 ACQJ20X10-10SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×10 | 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 ACQJ20X10-10SB Is Used
Varying Fixture Setups
Dial in the extend stop from 0 to 10mm to accommodate varying jig heights on a machining center without machining new spacers.
Product Changeover Stops
Adjust the forward clamping position on the fly for different product lengths on a packaging line, saving changeover time.
Trial End Positions
Test different extend endpoints during prototype development to find the optimal striking distance before finalizing a design.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X10-10SB the Right Cylinder?
If you need slightly less push force, the adjacent bore 16 model offers 100.5N at 0.5MPa, while the next size up, bore 25, provides 245.4N. A fixed-stroke ACQ is sufficient if your end position never varies. For this cylinder, verify your ordering essentials: 20mm bore, 10mm full stroke, 10mm window, S magnet, and 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X10-10SB FAQ
The usable extend range is 0-10mm. Force is identical to a standard ACQ: 157.1N push and 117.8N pull at 0.5MPa, 219.9N push at 0.7MPa, and a max push of 32kgf at 1.0MPa. The external adjuster has an M8x1.25 thread.
No, the external stop only changes stroke length, not piston area, so force remains identical. The cylinder uses fixed elastomer bumpers for deceleration. It does not hold a load on air loss; for a fail-safe hold, use an external rod lock or pilot-operated check valve.
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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