Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-30SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-30SB 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 ACQJ20X60-30SB
The AirTAC ACQJ20X60-30SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend stroke from 30 up to 60mm on the machine, while the retract stroke remains unaffected. Featuring a 20mm bore, it delivers 157.1N push force at 0.5MPa, identical to a standard ACQ because the adjuster alters stroke length only, not piston area.
This model includes a male M8x1.25 piston rod end for direct load coupling and a built-in piston magnet. The magnet works with reed or solid-state electronic switches via the integrated sensor grooves. It uses an M5x0.8 port, a fixed elastomer bumper at both ends for end-of-stroke deceleration, and an M8x1.25 external adjuster thread.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-30SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-30SB |
|---|---|
| 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 ACQJ20X60-30SB
| 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 ACQJ20X60-30SB Is Used
Product Changeover Stops
Adapt assembly line end positions rapidly during product family changeovers by dialing the extend stroke between 30 and 60mm without swapping hardware.
Packaging Clamp Tuning
Set precise clamping pressure on varying carton sizes by adjusting the outward stop on the fly, ensuring consistent sealing without reprogramming motion controllers.
Prototype End Positions
Dial in trial extend distances on new testing rigs to find the exact contact point, locking the nut once the optimal 30-60mm travel is verified.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-30SB the Right Cylinder?
When sizing this 20mm bore actuator, dropping to a 12mm bore reduces push force to 56.5N at 0.5MPa, whereas stepping up to a 25mm bore increases push force to 245.4N. If your machine never requires altering the extend end position, a fixed-stroke ACQ cylinder is sufficient and more compact. To order this adjustable variant, confirm the 20mm bore, 60mm full stroke, 30mm window, the S magnet option, and the 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 ACQJ20X60-30SB FAQ
It provides 157.1N push and 117.8N pull at 0.5MPa, 219.9N push at 0.7MPa, and a maximum push of 32kgf at 1.0MPa. The full stroke is 60mm with a 30mm window, allowing a usable extend range of 30-60mm.
No, the adjuster changes stroke length only, so force remains identical to a standard ACQ. The cylinder uses a fixed elastomer bumper at each end for deceleration, and the built-in magnet works with reed or electronic 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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