Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-30
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-30 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 80mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke80 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 ACQJ20X80-30
The AirTAC ACQJ20X80-30 is a double-acting JIS compact cylinder with an 80mm full stroke and a 30mm external adjustment window. An external M8x1.25 threaded stop and lock nut lets you fine-tune the extend end position directly on the machine, yielding a usable forward range of 50-80mm without swapping parts. The retract stroke remains completely unaffected.
Because the piston area stays constant, output force is identical to a standard ACQ of this bore. You get 157.1N push and 117.8N pull at 0.5MPa, rising to 219.9N push at 0.7MPa, with a maximum push capacity of 32kgf at 1.0MPa. The body features fixed elastomer TPU bumpers at both ends and integrated magnetic-switch grooves, though this specific SKU ships without a magnet.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-30 Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-30 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 80 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 ACQJ20X80-30
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×80 | 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 ACQJ20X80-30 Is Used
Machine Tool Changeover
Adapts the forward clamping reach on CNC fixtures during product family changeovers, using the stop nut to dial in the exact 50-80mm extension needed for new part geometries.
Carton Forming Stops
Provides adjustable folding flap positions on packaging lines, allowing operators to tweak the extend endpoint for varying box depths without changing the cylinder hardware.
Press Fit Trials
Sets trial insertion depths for pin pressing in electronics assembly, giving engineers the freedom to test multiple end positions safely before locking the nut down.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-30 the Right Cylinder?
Select this 20mm bore if your setup requires variable extend stops between 50 and 80mm. If you need less push force, the adjacent 16mm bore provides 100.5N at 0.5MPa; for heavier loads, stepping up to the 25mm bore yields 245.4N. A fixed-stroke ACQ is sufficient if your end position never varies. When ordering, confirm the 80mm full stroke, 30mm window, female M5x0.8 rod thread, M5x0.8 port, and whether you require the -S magnet option for sensor tracking.
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 ACQJ20X80-30 FAQ
The usable extend range is 50-80mm (80mm full stroke minus the 30mm window). 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 retract stroke remains fixed at 80mm.
No, the external M8x1.25 stop only limits how far the rod extends, leaving piston area and force unchanged. Deceleration relies on fixed elastomer TPU bumpers at both ends, not adjustable air cushions. Note that this model lacks a magnet, though the body retains sensor grooves for adding switches if needed.
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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