SainSmart Genmitsu 4040-PRO MAX CNC Router, 710W Trimmer & Linear Rail Driven, Work Area 410 x 405 x 77mm, for Wood Metal Acrylic Cutting Milling, GRBL Control
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30-day refund / replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 10 left in stock, order soon!
Arrives
Monday, Jul 13
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Features
- Next-Generation Precision: Advanced X-axis and Z-axis linear guideway structures for enhanced motion stability and precision.
- Reinforced Spoilboard with Integrated T-Track: The upgraded spoilboard features a central aluminum support bar that reinforces the MDF to prevent sagging under load, while also serving as a T-slot to enable more versatile clamping and fixture options.
- Powerful Performance: Equipped with a high-powered 710W digital display compact router for superior engraving and cutting.
- High Production Efficiency: Reduced machine vibration ensures high precision and stable motion during fast, high-power operations.
- Increased Pass Height: Offers a 100mm pass height, over 40% higher than the PRO version, for engraving taller materials. Upgrade your trimmer without worrying about a reduction in engraving height.
Brand: SainSmart
Material: Metal
Power Source: ac_dc
Product Dimensions: 15.75"W x 3.07"H
Voltage: 24 Volts
Power Source: ac_dc
Voltage: 24 Volts
Horsepower: 0.95 Horsepower
Amperage: 4 Amps
Base Type: Fixed
Battery Description: Corded electric
Material Type: Metal
Item Dimensions W x H: 15.75"W x 3.07"H
Brand Name: SainSmart
Model Number: 4040PM
UPC: 810168141510
Manufacturer Part Number: 4040PM
Manufacturer: Sainsmart
Included Components: CNC Milling Machine
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jul 13
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
New to CNC. GREAT beginner machine. Easy assembly. Solid machine for the money. Using Easel program makes it easy for beginners
Reviewed in the United States on April 10, 2026 by S. Wise
My first CNC machine. I have made a few projects and it did an anazing job. Im new to using a CNC machine so i having nothing to go by. But i love my Genmitsu 4040 pro max.
Reviewed in the United States on April 26, 2026 by lisa crandall
The media could not be loaded. The Goods: The assembly was very quick and easy. After doing a through review and calibration check of the X, Y and Z axis. I found this machine to be very accurate (~.01mm) with minimal backlash! This CNC seems like a very durable and highly capable machine. I will be doing additional testing in the near future. But so far things feel very solid and accurate. The Bads: (but maybe some good...) During calibration and tolerance checks I found that the provided router had a whopping .3mm runout!!! I was able to email support and after providing a short video of the runout they very quickly sent me a replacement at no cost. I was very happy with the support that was provided from Sainsmart to quickly resolve this issue. The new router is well within acceptable tolerance and will allow me to continue testing. So far, I am very happy with my purchase and it seems like a very capable CNC for the value.
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Reviewed in the United States on September 18, 2025 by Matt
This CNC machine is capable of producing clean engraving and accurate cutouts once everything is set up correctly. Assembly was straightforward, and with enough time spent learning the workflow, it can deliver decent results. However, I do not recommend this machine due to a serious safety concern that is not obvious to new users. There is very little margin for error when cutting all the way through material. If your workpiece is positioned directly above the machine bed or T-tracks, even small variations in material thickness or Z height can cause the bit to cut deeper than expected. In my experience, this brought the cutter dangerously close to contacting metal components beneath the work surface. A spinning cutter striking metal can result in immediate tool damage and unpredictable machine behavior. This creates a real risk of broken bits, and in some cases the bit can snap under load, which could potentially injure the operator. It can also lead to shifting material or debris being thrown, which adds to the overall hazard. The machine offers very little forgiveness in a critical part of the cutting process. Because of this lack of safety margin during full cut-through operations, I cannot recommend this machine, especially for beginners. It can produce good results, but only with additional setup and precautions that are not clearly addressed upfront. If you do choose to use it, make sure you implement a proper spoilboard and take extra care when setting Z height before attempting any full cut-through cuts.
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Reviewed in the United States on April 18, 2026 by Stephen G.
Love this little guy. Once star off for the winky two piece bed (why do we let the shipping department take part in engineering decisions?), but other than than I've had only good outcomes. I do recommend the relay switch that SainSmart sells so your software can control the spindle on-off. I only had to drag one bit to decide that was a necessity.
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Reviewed in the United States on February 28, 2026 by Shayz
Great product and good customer service. This is a very good starter CNC machine for both wood and light metal. Precision is good. Few complaint is about the other accessories like wifi module and dust shoe. If connected directly to a PC it works perfectly, but the wifi module is very unstable, it need to reconnect every time. For zeroth calibration this is very tedious thing to do with wifi. After, one axis calibration if wifi module lost its signal the whole process just wasted. This become worse if you are using multiple tool for a single job. During tool change once wifi signal lost the zeroth calibration lost altogether. Direct PC connection do work good, but due to dust issue this is also not being the best option. The dust shoe sold separately as a accessories does not do a good enough job that could prevent dusting goes into the PC. But overall when it works it really do a good job on wood carving. It has enough power to carve most of the common type of wood with good precision. Customer care is good, they responed promptly. This is very noisy machine though, but that is what you expect with open concept CNC. Using for 6 months now, it is working fine.
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Reviewed in the United States on May 11, 2026 by Aashique R.
I purchased this machine a couple of months ago and other than testing it briefly, just got it up and running. I previously had another machine that gave me all kinds of grief so this is my second machine. WHAT A DIFFERENCE! This tool is way more stable and smooth. Some people seem concerned with the smaller stepper motors but I have not had any issue with them cutting anything of reasonable size so far. The spindle motor is a beast compared to my last one. It is so smooth and powerful that I purchased a hand held router kit made by the same company that uses the exact same motor. (I will review it later). The machine came very well boxed and packed. Assembly was easy as it came as mostly assembled modules. All of the tools required were included as well as a few accessories. The included software was pretty typical of any of these machines but certainly adequate to get started carving. I am SO glad that I spent the extra money to get the pro MAX version of this CNC machine. It was well worth the money!
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Reviewed in the United States on October 20, 2025 by JohnG