Issue with 4040 Pro CNC I contacted Sainsmart about a problem that I was having with my 4040 Pro CNC. They responded backed to me quickly and requested some additional information. Upon the receipt of the information from me, they immediately sent me an updated part that has seemed to completely solve my problem! I was very impressed with the responsiveness of their communications and their actions to solve my problem. Thanks again!!

I bought the 3018ProVers2 with Controller I bought the 3018ProVers2 with controller from Genmitsu. Fast shipping and everything neatly packaged. Unfortunately the controller was missing from the accessories. Short email to the manufacturer and 6 hours. later came the following answer: Sorry, please provide address and telephone number. We will check the purchase and send you a new controller with accessories. 8 days later the part was there and everything works perfectly. A great service without any ifs and buts... GenMitsu gladly again... Erwin H.

Sainsmart puts the pro in 4040 pro! The inside of the USB port on my 4040 pro broke loose and came out. Sainsmart sent me a new board. When I put the new board in it was defective. Sainsmart rushed me a board and everything is great! Sainsmart is hands down one of the best companies out there. I will look to see if Sainsmart carries an item before I purchase elsewhere. Sammy and the customer service team are amazing! They absolutely stand by their products and care about their customers! Thank you Sainsmart for all the amazing work you do!

Damaged ER11 collet from set Company replaced the damaged item quickly and without issue with an entire upgraded ER11 collet set.

Real people, Really fast The customer service was amazing. Had an issue with a new machines motor only after a few weeks of owning it. Messaged the company, and less than 24 hours we had the replacement shipped and on its way. Very quick response and knowledgeable support.