A non-OEM 24V brick for the VEVOR CNC3018Pro and VG-S3018 Pro, with worldwide 100–240V input and over-voltage and over-heat protection. It gets a machine with a dead or lost supply cutting again.
A 3018 with a dead power supply is a desk ornament. Everything on the frame, from the steppers to the spindle and the control board, runs off one 24V DC brick, and when that brick fails, a replacement with the same output is all the machine needs.
This adapter is built as a like-for-like replacement for VEVOR's CNC3018Pro and the VG-S3018 Pro. It converts mains power to 24V DC and feeds it into the machine's barrel socket, the same job the original brick did.
The symptoms of a failing supply are easy to mistake for other faults:
If a multimeter on the barrel plug reads well under 24V with the brick unplugged from the machine, or zero, the supply is the culprit. That test takes a minute and saves ordering the wrong part.
The adapter takes 100 to 240V at 50 or 60 Hz and switches automatically, so the same brick works on North American and European mains with a plug adapter. It is protected against over-voltage and over-heating. The Kircuit-badged version adds a charger IC and a power fuse inside the case.
| Spec | Value |
|---|---|
| Output voltage | 24V DC |
| Current, as printed | 5600 mA |
| Power, as printed | 80 W |
| Input voltage | AC 100–240V, auto-switching |
| Input frequency | 50/60 Hz |
| Protection | Over-voltage and over-heat |
| Internal safety | Charger IC and power fuse (Kircuit version) |
| Output connector | Barrel plug |
| Mains connector | 2-pin |
| Wall plug | Type A, North American |
| Form | Desktop power brick |
| Model number | CNC3018Pro |
| Maker | Shenzhen Waweis Technology, sold as onerbl and Kircuit |
| Compatible machines | VEVOR CNC3018Pro, 3018-PRO, VG-S3018 Pro |
| Type | Non-OEM replacement |
| Colour | Black |
The adapter's rating is printed two ways, and they do not agree. The title gives both 5600 mA and 80 W at 24V, but 24V at 5.6 A works out to about 134 W, while 80 W at 24V is only about 3.3 A.
That gap matters for planning. The safe reading is the lower figure: treat the brick as an 80 W supply and do not expect more from it. At 80 W it covers what a stock VEVOR 3018 draws for steppers, board and a small spindle together, which is what it is sold to replace.
| Figure | At 24V | How to use it |
|---|---|---|
| 80 W, as printed | About 3.3 A | Plan around this |
| 5600 mA, as printed | About 134 W | Treat as unconfirmed |
| Genmitsu 24V 4A supply | 96 W, 8–10 A at start-up | For faster 775 spindles |
Where the difference bites is spindle start-up. A brushed 775 motor pulls several times its running current in the first moment after power reaches it, and a supply at its limit sags. The board then browns out and resets, which on a 3018 means a lost job and a bit parked in the work.
Three situations push past what an 80 W brick should be asked to do:
For any of those, a supply with a published start-up rating is the better tool.
Most replacement-brick trouble comes from the plug, not the power. A barrel connector that is slightly the wrong size can seem to fit and still make poor contact, which shows up later as intermittent resets.
Before plugging it into the machine, compare it with the original brick, or with the socket on the controller box:
Then run a short proving job on basswood, since it is soft, cheap and forgiving:
If that job runs clean, the machine is back in service. If the board resets on the plunge, the spindle is asking for more current at start-up than the brick can deliver.
A replacement brick makes sense when the goal is to get the machine back to how it shipped. When the goal is to push the machine further, a supply with more headroom makes more sense.
The VEVOR 3018 in its 60W form is a light machine for basswood signs, acrylic engraving and PCB work. For that kind of cutting, a matching 24V brick is enough, and this adapter is sized for exactly that job. Owners of VEVOR's 500W model should check the machine first, since a 500W spindle cannot run from an 80 W brick at all.
Consider a different supply if any of these apply:
The Genmitsu 24V power supply is the clearest step up. It is a 24V 4A brick rated for an 8 to 10 A starting current, built for Genmitsu's own spindle upgrade, and it guards against over-voltage, excess current, overheating and short circuits. It is sold for Genmitsu machines, so compare its barrel plug with the VEVOR socket before relying on it.
For a VEVOR owner, the order of checks is simple. Confirm the original is 24V, match the plug and polarity, and decide whether the machine will stay stock.
If it will, this replacement fits the job, and keeping a second one on the shelf means a failed brick costs an evening rather than a week. If a faster spindle is coming, buy for the spindle, not the frame. A supply chosen for the start-up draw of the motor you plan to fit will also cover everything the stock machine asks for.
The VEVOR 3018 logbook covers the machine itself, and the upgrade order shows where power fits among the other parts.
No. It is a non-OEM replacement sold under the onerbl and Kircuit badges, made to match the VEVOR CNC3018Pro and VG-S3018 Pro.
24V DC, from an AC input of 100 to 240V at 50 or 60 Hz.
Both figures are printed, but they do not match at 24V. Plan around the lower 80 W rating, about 3.3 A.
Treat that as unlikely. Faster 775 spindles draw a large start-up current, and a supply with a published start-up rating, such as Genmitsu's 24V 4A brick, suits them better.
