Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X15-10B
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X15-10B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 15mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke15 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 ACQJ20X15-10B
The AirTAC ACQJ20X15-10B is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the EXTEND end position. You can fine-tune the usable extend range from 5 mm up to the full 15 mm stroke directly on the machine without swapping parts, while the RETRACT stroke remains unaffected. It features a 10 mm piston rod, an M5x0.8 port, and a male M8x1.25 rod-end thread (-B) that couples directly to the load.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 157.1 N push and 117.8 N pull at 0.5 MPa. The unit relies on a fixed elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The body includes sensor grooves, though this specific configuration ships without a magnet.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X15-10B Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X15-10B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 15 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 ACQJ20X15-10B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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 ACQJ20X15-10B Is Used
Prototype Positioning
Dial in trial extend end positions on a small fixture during prototype runs without machining new spacers.
Product Changeover Stops
Shift the extend stop from 5 to 15 mm to accommodate different package sizes on a packaging conveyor.
Assembly Machine Tuning
Fine-tune the pressing depth of a 20 mm bore actuator on an assembly line directly at the equipment.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X15-10B the Right Cylinder?
If your application requires less push force, the adjacent ACQJ16 bore yields 100.5 N at 0.5 MPa, whereas stepping up to the ACQJ25 bore provides 245.4 N. If the end position never needs adjustment, a fixed-stroke ACQ20 cylinder will suffice and saves complexity. When ordering this adjustable model, confirm the 20 mm bore, 15 mm full stroke, 10 mm adjustment window, the male M8x1.25 rod 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 ACQJ20X15-10B 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 usable extend range is 5-15 mm, shortened from the 15 mm full stroke by the 10 mm window.
An external M8x1.25 threaded stop with a lock nut limits the extend stroke, changing only the travel length and not the piston area, so force remains identical to a standard ACQ. The rod relies on a fixed elastomer bumper for deceleration, and since this model lacks a magnet, it will not 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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