Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X35-30
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X35-30 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 35mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke35 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 ACQJ20X35-30
The AirTAC ACQJ20X35-30 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that restricts how far the rod extends. You can fine-tune the forward end position directly on your machine without swapping parts, yielding a usable extend range of 5-35mm. The return stroke remains completely unaffected. Because the piston area stays the same, output force equals a standard ACQ of this size.
This 20mm bore unit pushes with 157.1N and pulls with 117.8N at 0.5MPa. It uses an M5x0.8 port and a 10mm piston rod. Fixed elastomer TPU bumpers decelerate the load at both ends, while integrated body grooves allow mounting reed or solid-state switches if a magnet is added later. The external adjuster utilizes an M8x1.25 thread.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X35-30 Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X35-30 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 35 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 ACQJ20X35-30
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×35 | 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 ACQJ20X35-30 Is Used
Fixture Stroke Trimming
Dial in the exact clamping reach on machining fixtures during part-changeover without fabricating new mechanical stops.
Carton Pusher Setup
Adjust the pusher end position on packaging lines to accommodate varying box depths rapidly on the fly.
Prototyping End Points
Establish precise trial extend distances for lab test rigs and small assembly mechanisms before finalizing dimensions.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X35-30 the Right Cylinder?
If your application only requires a fixed 35mm forward movement, a standard ACQ20X35 will suffice without the external hardware. When sizing this family, stepping down to a 16mm bore yields 100.5N push force, whereas stepping up to a 25mm bore provides 245.4N at 0.5MPa. To order correctly, confirm the 20mm bore, 35mm full stroke, 30mm window, female rod thread, and whether you need the S magnet option for sensing.
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 ACQJ20X35-30 FAQ
It delivers 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 35mm with a 30mm window, allowing a usable extend range of 5-35mm.
The external M8x1.25 threaded stop with lock nut limits only the extend length, leaving the retract stroke untouched. Force remains identical to a standard ACQ because the piston area is unchanged. Fixed elastomer bumpers handle deceleration, but the cylinder will not hold a load on air loss; use an external rod lock 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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