The ACER E-mill head utilizes a vector type inverter duty frequency drive. This eliminates the reeves drive which is where you see most of the wear and damage in a milling head.
With most of your imported milling machines this becomes an issue because finding the parts is usually difficult. Not only is there typically a three to four week lead time, but the parts are usually over priced.
In some cases we're not able to find the parts and have to make them. That's pricey because we don't have the set up for that, so it's custom made. Lets face it, a customer doesn't want me to spend sixteen hours taking apart their milling head,establishing what's wrong with it, then the parts are nowhere to be found, expensive, or a month away from delivery.
A lot of times it's around the same price or even cheaper to just buy a new milling head from the start. While factoring in the price of parts and labor,it's quicker and you have a whole new head rather than an old one with some new parts in it.
With Bridgeport heads, I'm still a huge fan. You can find the replacement parts, and they're fair priced. However, after installing and using the ACER E-mill head, I must say that it's worth exploring that option. Reason being that they are utilizing the current technological advances and they're easy on the budget.
Rossi Machinery Services, Inc. is an authorized distributor for ACER. We're able to answer any questions you may have about the product and supply you with all the literature.