Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10S
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 20mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke20 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 ACQJ20X20-10S
The AirTAC ACQJ20X20-10S is a double-acting JIS compact cylinder with a 20mm bore and an external threaded stop that limits the extend end position. You can fine-tune the usable extend stroke from 10mm up to the full 20mm directly on your machinery, while the retract stroke remains unaffected. Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore.
This unit includes a built-in piston magnet (-S) compatible with reed or electronic solid-state switches. It features a fixed elastomer bumper at each end for end-of-stroke deceleration, M5x0.8 porting, and an M8x1.25 external adjuster thread. Operating pressure ranges from 0.15 to 1.0 MPa, supporting speeds of 30-500 mm/s.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10S Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 20 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 ACQJ20X20-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 ACQJ20X20-10S Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture during setup, allowing operators to shift the end position by up to 10mm without swapping hardware.
Product Changeover Pins
Adapt locating pins on a packaging line quickly when running a slightly shorter carton, retracting the extend stroke within the 10-20mm window.
Prototype End Positions
Test various press depths on a laboratory assembly rig by adjusting the external stopper lock nut until the optimal travel is found.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10S the Right Cylinder?
For lower force requirements, the 16mm bore variant provides 100.5N push at 0.5 MPa, whereas the 25mm bore version increases output to 245.4N. If your application requires a fixed 20mm extend without on-machine tuning, a standard ACQ20X20 cylinder is sufficient. When ordering this adjustable model, confirm the 20mm full stroke, the 10mm adjustment window, the -S magnet option, and the default female M5x0.8 rod-end 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 ACQJ20X20-10S FAQ
The usable extend range is 10-20mm (a 20mm full stroke shortened by the 10mm window). Force is identical to a standard ACQ20: 157.1N push and 117.8N pull at 0.5 MPa, 219.9N push at 0.7 MPa, and a maximum push of 32 kgf at 1.0 MPa.
No, the external M8x1.25 threaded stop only limits how far the rod extends; the piston area remains the same so force is unchanged. The cylinder uses fixed elastomer bumpers at each end for deceleration, not adjustable air cushions.
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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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