Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-75SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-75SB 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 ACQJ20X60-75SB
The AirTAC ACQJ20X60-75SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that restricts the EXTEND end position. You can fine-tune the usable extend range from 0 up to 60 mm directly on the machine without swapping parts, while the RETRACT stroke remains completely unaffected. Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore.
This unit delivers 157.1 N of push force and 117.8 N of pull force at 0.5 MPa, peaking at a 32 kgf maximum push at 1.0 MPa. It features a 10 mm rod, an M8x1.25 male rod-end thread (-B) for direct load coupling, and an M8x1.25 external adjuster thread. The body includes fixed elastomer TPU bumpers at each end for end-of-stroke deceleration, alongside magnetic-switch grooves compatible with reed or electronic sensors via the -S magnet.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-75SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-75SB |
|---|---|
| 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 ACQJ20X60-75SB
| 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 ACQJ20X60-75SB Is Used
Machining Fixture Clamping
Dial in the exact clamping reach on a CNC milling vise during part-changeover, shortening the extend stroke from 60 mm down to 0 mm to accommodate varying raw material thicknesses.
Carton Sealing Stops
Adjust the extend endpoint on a packaging line to seal different box heights on the fly, using the external stop to set precise folding positions without changing cylinders.
Laboratory Test Positioning
Set trial end positions for repetitive impact testing equipment, tweaking the extend limit in millimeters to find the exact contact point for various sensor samples.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-75SB the Right Cylinder?
Selecting this bore gives 157.1 N push at 0.5 MPa; dropping to a 16 mm bore lowers push to 100.5 N, while stepping up to 25 mm raises it to 245.4 N. If your application never requires altering the extend endpoint, a fixed-stroke ACQ cylinder suffices. When ordering, verify the 20 mm bore, 60 mm full stroke, 75 mm adjustment window, the -S magnet, and the M8x1.25 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 ACQJ20X60-75SB FAQ
The usable extend range is 0-60 mm (60 mm full stroke minus the 75 mm window). The force is identical to a standard ACQ: 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.
No, the external M8x1.25 threaded stop only changes the extend stroke length, not the piston area, so force remains identical to a standard ACQ. The retract stroke is unaffected, and fixed elastomer bumpers at both ends handle deceleration. Note that a plain ACQ-type does not hold its load on air loss; for a fail-safe hold, use an external rod lock or pilot-operated check valve.
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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.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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