Look for items like towing weight, engine options, number of axles and reliability of electronics. Both machines will chip brush, but how expensive is it going to be to get to the job site? Some manufactures offer different engine options, is there a dealer for the engine in your area? Do they stock the parts you need? Are the easy to work with?
Same with the electronics. The best chipper in the world is a hunk of metal if it is not running.
Look closely at engine size, a bigger motor might cost more but burn significantly less fuel per hour. We all know that stuff ain't getting any cheaper anytime soon!
Consider your axle options. Two axles take twice the tire, but may be necessary for the weight. Single axles are generally shorter and easier to back and can be pushed by hand if necessary.
Also beware if you cannot get only the options you want and nothing else. Somebody else's chipper may not fit your operation. If you feed with equipment a lot then a welded indeed is great. If not then it's a money vacuum.
In short go with services as stated, fit the machine to your operation now and/or as it will be. Look at maintenance, fuel costs, emissions and over the road costs and keep the weight within your licensing and needs.
Tony
