Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-100B
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-100B 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 ACQJ20X80-100B
The AirTAC ACQJ20X80-100B is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. With a full stroke of 80mm and a 100mm adjustment window, you can fine-tune the usable extend range from 0mm up to 80mm directly on your machine. The retract stroke remains completely unaffected. A male M8x1.25 rod-end thread couples directly to your load.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 157.1N push and 117.8N pull at 0.5MPa. The unit includes fixed elastomer bumpers at both ends for end-of-stroke deceleration and features built-in sensor grooves, though this specific SKU ships without a magnet. Operating pressure spans 0.15-1.0MPa with a speed range of 30-500mm/s.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-100B Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-100B |
|---|---|
| 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 ACQJ20X80-100B
| 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 ACQJ20X80-100B Is Used
Machining Fixture Stops
Dial in the exact extend position for varying part lengths on a CNC lathe without swapping out physical hard stops.
Carton Changeover
Rapidly adjust the tucking arm reach during product format changes on a packaging line to handle different box widths.
Prototype Positioning
Test multiple extend end positions on a lab assembly rig to find the optimal travel before finalizing the mechanical layout.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-100B the Right Cylinder?
When sizing this bore 20 unit, consider the neighbouring bore 16 which yields 100.5N push at 0.5MPa, or the bore 25 which provides 245.4N push at 0.5MPa if your load requires more strength. If your application never requires end-position tuning, a fixed-stroke ACQ cylinder will suffice. To order this adjustable variant correctly, confirm the 20mm bore, 80mm full stroke, 100mm window, the male rod thread (-B), and note that no magnet (-S) is included.
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 ACQJ20X80-100B FAQ
This model 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 usable extend range is 0-80mm (80mm full stroke minus up to 100mm window).
An M8x1.25 external threaded stop with a lock nut limits the extend stroke length only. It does not change the piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration, and because it lacks a magnet, it will not trigger reed or solid-state sensors.
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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