Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 20mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke20 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 ACQJ20X20-10
The AirTAC ACQJ20X20-10 is a double-acting JIS compact cylinder featuring an external adjustable extend stop. A threaded rod-end screw with a lock nut lets you fine-tune the extend end position on the machine without swapping parts. This unit provides a usable extend range of 10 to 20 mm, shortening the full 20 mm stroke by up to 10 mm. The retract stroke remains completely unaffected by this adjustment.
Because the piston area stays the same, the output force equals that of a standard ACQ bore 20 cylinder. You get 157.1 N push and 117.8 N pull at 0.5 MPa. It uses an M5x0.8 port, a 10 mm piston rod, and fixed elastomer bumpers at both ends for end-of-stroke deceleration. Note that this specific model ships without a magnet, though the body retains sensor grooves.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10 Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 20 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 ACQJ20X20-10
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 ACQJ20X20-10 Is Used
Product Changeover Stops
Adjust the 10-20 mm extend position rapidly on packaging lines when fitting different carton sizes, avoiding the need to machine new spacer rings.
Trial End Positions
Dial in the exact clamping reach on a custom jig during prototype testing, locking the M8x1.25 adjuster nut once the ideal 15 mm extension is found.
Sensor Probe Alignment
Fine-tune the forward travel of a testing probe against delicate electronics, using the external stop to prevent over-travel without recalculating air pressure.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X20-10 the Right Cylinder?
For sizing context, dropping to a bore 16 yields 100.5 N push at 0.5 MPa, while stepping up to a bore 25 provides 245.4 N push at 0.5 MPa. If your application never requires end-position tuning, a fixed-stroke ACQ20X20 is sufficient. When ordering this adjustable unit, confirm the 20 mm bore, 20 mm full stroke, 10 mm window, female M5x0.8 rod-end thread, and that no magnet (-S) is required.
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 ACQJ20X20-10 FAQ
The usable extend range is 10 to 20 mm (a 10 mm adjustment window off the 20 mm full stroke). Force is identical to a standard ACQ bore 20: 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 external M8x1.25 threaded stop with lock nut mechanically limits how far the rod extends, shortening the stroke without changing the piston area, so force remains unchanged. Deceleration relies on fixed elastomer bumpers, not adjustable air cushions. Also, this model lacks a magnet, so it cannot trigger reed or solid-state 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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