Spindle & Press

How to Choose a CNC Router: 3018-PRO vs 3018 Pro Max vs 4040-PRO vs 6040

Compare four CNC router engraving machines that span the 3018-PRO starter model, a 500W 3018 Pro Max, a larger 4040-PRO, and a 4-axis water-cooled 6040.

Last updated Aug 17, 2026

Quick Take

Choosing a CNC router usually comes down to matching the machine's working area, spindle power, and axis count to the materials you actually cut. In this group, three machines share the familiar 3018/4040 desktop format while one moves into heavier 4-axis territory. The US』3018-PRO is the straightforward 3-axis starter, the CNC 3018 Pro Max adds a more powerful 500W spindle, the Pro 4040-PRO expands the working area, and the USB 4 Axis 6040 is the heavy-duty water-cooled option.

Listed-Price Comparison

ModelListed PricePrice BarKey Specs
US』3018-PRO CNC Router Engraver Laser MachineUSD 138.003-axis, ER11 collet, Nema17 stepper, laser support add-on
CNC 3018 Pro Max 500W CNC Router MachineUSD 276.25500W spindle, all-metal frame, screw drive, optional laser
Pro CNC Machine 4040-PRO Router Woodworking Metal Acrylic MDF Metal CuttingUSD 360.2675W spindle, 400×400×83mm stroke, GRBL/Candle software
USB 4 Axis 6040 CNC Router Engraver VFD Drill Engraving Milling Machine w/HandleUSD 1,150.904-axis, water-cooled, VFD control, 6061/6063 aluminum alloy

Decision Matrix

ModelBest suited forKeep in mind
US』3018-PROFirst-time CNC users who want a small 3-axis machineLaser module is not included; assembly required
CNC 3018 Pro Max 500WUsers who want a 500W spindle in a 3018 formatLaser is an optional extra at order time
Pro 4040-PROJobs that need a 400×400×83mm effective strokeDrive power is listed as 110V
USB 4 Axis 6040Heavy-duty 4-axis work with water coolingHighest listed price in this group

Product Notes

US』3018-PRO CNC Router Engraver Laser Machine

US』3018-PRO CNC Router Engraver Laser Machine Milling Cutting Wood PCB Aluminum

This 3-axis machine uses an ER11 collet and a Nema17 stepper motor, and the included GRBL software makes it easy to get started. The package requires assembly, and the bundle includes a USB flash drive with the user manual and GRBL control software. Although the machine can support a laser engraver, the laser module itself is not in the parcel, so the engraving-laser capability depends on you adding a compatible module later. For wood, PCB, and aluminum projects at the lowest listed price in this group, the 3018-PRO is the machine to start with.

CNC 3018 Pro Max 500W CNC Router Machine

CNC 3018 Pro Max 500W CNC Router Machine Milling Cutting Engraving Machine

Where the 3018-PRO keeps things simple, the 3018 Pro Max brings a 500W spindle to the same 3018-type format. The all-metal construction and screw-drive units are designed for rigidity, and the listed maximum movement speed reaches 5000mm/min. The spindle speed range is 0-12000 RPM. Because the laser is an option-with no-laser, 5.5W, and 10W choices-you can order exactly the hybrid you want. The limitation is that the option choice has to be made at purchase: a no-laser configuration gives you milling only, not the engraving-laser feature. This is a stronger-spindle alternative for anyone who wants more power without moving to a larger frame.

Pro CNC Machine 4040-PRO Router Woodworking Metal Acrylic MDF Metal Cutting

Pro CNC Machine 4040-PRO Router Woodworking Metal Acrylic MDF Metal Cutting

The 4040-PRO provides a 400×400×83mm effective stroke, which is a useful amount of working area for larger pieces of wood, acrylic, MDF, and the metal cutting called out in the title. Its 75W spindle is rated at 0-10000 RPM, and the aluminum frame is described as durable and strong. Acceptable software includes GRBL and Candle, with a USB communication interface. The drive power is specified as 12V 5A at 110V, so that is a practical setup point to check before buying. It sits in the middle of the price range and is a more spacious 3-axis option for workshop projects.

USB 4 Axis 6040 CNC Router Engraver VFD Drill Engraving Milling Machine w/Handle

USB 4 Axis 6040 CNC Router Engraver VFD Drill Engraving Milling Machine w/Handle

This is the only 4-axis machine in the comparison, and it pairs a USB connection with a VFD control unit built around a toroidal transformer and PWM power supply. The machine uses water cooling and a 6061/6063 aluminum alloy structure, and the description positions it as a heavy-duty unit for long-term shop work rather than a small desktop hobby tool. The trade-off is straightforward: at the highest listed price here, you're paying for a bigger, more capable system. If your projects require 4-axis movement and extended operating time, this is the machine that fits that brief.

Final Recommendation by Use Case

Start with the lowest listed price and the simplest setup: the US』3018-PRO at USD 138.00 is the 3-axis machine for small wood, PCB, and aluminum projects. If you want more spindle power in a 3018-style machine, the CNC 3018 Pro Max at USD 276.25 is the next step. If you need a 400×400×83mm effective stroke, the Pro CNC Machine 4040-PRO at USD 360.26 adds that working area with GRBL/Candle compatibility. For heavy-duty 4-axis, water-cooled work, the USB 4 Axis 6040 at USD 1,150.90 is the machine to build around.

Products in this article
US』3018-PRO CNC Router Engraver Laser Machine Milling Cutting Wood PCB AluminumUSD 138.00View on eBayCNC 3018 Pro Max 500W CNC Router Machine Milling Cutting Engraving MachineUSD 276.25View on eBayUSB 4 Axis 6040 CNC Router Engraver VFD Drill Engraving Milling Machine w/HandleUSD 1,150.90View on eBayPro CNC Machine 4040-PRO Router Woodworking Metal Acrylic MDF Metal CuttingUSD 360.26View on eBay
US』3018-PRO CNC Router Engraver Laser Machine Milling Cutting Wood PCB AluminumUSD 138.00View on eBayCNC 3018 Pro Max 500W CNC Router Machine Milling Cutting Engraving MachineUSD 276.25View on eBayUSB 4 Axis 6040 CNC Router Engraver VFD Drill Engraving Milling Machine w/HandleUSD 1,150.90View on eBayPro CNC Machine 4040-PRO Router Woodworking Metal Acrylic MDF Metal CuttingUSD 360.26View on eBay

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