Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 60mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke60 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 ACQJ20X60-20SB
The AirTAC ACQJ20X60-20SB is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend end position. With a full stroke of 60 mm and a 20 mm adjustment window, you can fine-tune the usable extend range from 40 to 60 mm directly on your machine without swapping parts. The retract stroke remains completely unaffected by this mechanism.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore, delivering 157.1 N push at 0.5 MPa. This bore 20 unit uses an M5x0.8 port, includes a male M8x1.25 rod end (-B) for direct load coupling, and has a built-in magnet (-S) for position sensing. It relies on fixed elastomer TPU bumpers at each end for end-of-stroke deceleration.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 60 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 ACQJ20X60-20SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×60 | 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 ACQJ20X60-20SB Is Used
Machining Fixture Clamping
Dial in the exact clamping extension on a CNC fixture, allowing operators to accommodate varying part thicknesses without machining custom spacers.
Packaging Tucking Arms
Adjust the push depth of carton tucking arms during product changeovers, ensuring precise flap folding for different box sizes on the fly.
Assembly Press Positioning
Set trial end positions for pressing small bearings or pins, enabling safe, incremental depth adjustments before finalizing the mechanical stop.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20SB the Right Cylinder?
Selecting this 20 mm bore makes sense when your application requires precise extend-end tuning between 40 and 60 mm alongside a 157.1 N push force at 0.5 MPa. If your setup never requires stroke shortening, a fixed-stroke ACQ20X60 will provide the exact same power in a simpler package. When sizing neighbors, stepping down to a 12 mm bore drops push force to 56.5 N, while stepping up to a 25 mm bore increases it to 245.4 N. Confirm your ordering essentials: 20 mm bore, 60 mm full stroke, 20 mm window, plus the S magnet and B male rod thread options.
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 ACQJ20X60-20SB FAQ
This 20 mm bore cylinder provides a push force of 157.1 N and a pull force of 117.8 N at 0.5 MPa, with a push force of 219.9 N at 0.7 MPa. The maximum push force is 32 kgf at 1.0 MPa. The full stroke is 60 mm, and with the 20 mm adjustment window, the usable extend range is 40 to 60 mm.
The external M8x1.25 threaded stop with lock nut limits only the extend length, leaving the retract stroke unaffected. Force remains identical to a standard ACQ because the piston area is unchanged. The cylinder uses fixed elastomer bumpers, not adjustable cushions, and will not hold its load on air loss; use an external rod lock or pilot-operated check valve for fail-safe holding.
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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