Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-75B
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-75B 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 ACQJ20X80-75B
The AirTAC ACQJ20X80-75B is a double-acting JIS compact cylinder featuring an external extend stop. A threaded adjuster with a lock nut lets you set the extend end position from 5 to 80 mm on the machine, while the full 80 mm 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 and 117.8 N of pull at 0.5 MPa, peaking at 32 kgf at 1.0 MPa. It uses an M5x0.8 port and a male M8x1.25 piston rod end for direct coupling. The body includes fixed elastomer bumpers at each end and integrated sensor grooves, though this specific configuration ships without a magnet.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-75B Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-75B |
|---|---|
| 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 ACQJ20X80-75B
| 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 ACQJ20X80-75B Is Used
Fixture Position Tuning
Dial in the exact extend stop from 5 to 80 mm during initial fixture setup without machining custom spacers.
Product Changeover Stops
Shift the extend end position on a packaging line to accommodate varying carton sizes on the fly.
Trial End Positions
Test different extend endpoints on a testing rig to find the optimal travel before finalizing the mechanical layout.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X80-75B the Right Cylinder?
If you need slightly less force, the 16 mm bore provides 100.5 N push at 0.5 MPa, whereas stepping up to a 25 mm bore yields 245.4 N. This 20 mm bore is the right choice when your application requires around 157 N of push. If your end position never varies, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable version, confirm the 20 mm bore, 80 mm full stroke, 75 mm window, male M8x1.25 rod thread, and no magnet.
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 ACQJ20X80-75B FAQ
It provides 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. The full stroke is 80 mm with a 75 mm window, giving a usable extend range of 5 to 80 mm.
An external M8x1.25 threaded stop with a lock nut limits the extend distance without altering the piston area, so force remains identical to a standard ACQ. The retract stroke is unaffected. The cylinder uses fixed elastomer bumpers for deceleration and does not hold the 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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