Now here's a great question - usually from the maintenance guy, not the purchasing guy. In reference to cartridge filter style dust collectors, you're going to run across several different configurations for opening/closing the access points as well as removing/installing the filters. Let me briefly address what is typical, what is unique and let you decided for yourself.Most horizontal cartridge style dust collectors have multiple, roundish covers that separate from the collector housing. Of these, different manufacturers offer varying methods for attaching the covers. Some are cover assemblies that must be oriented and navigated back on in a specific way so components behind the cover line up and lock. Other cover designs with a locking procedure that is visible use threaded rods, knobs or nuts. All these loose items are retained atop an elevated access platform while the horizontal cartridges are removed and replaced with new ones.
The easiest industrial dust collectors for changing the cartridge filters are those that offer quick access, require no tools and have no loose hardware to get lost. Look for a minimal quantity of access doors that are permanently attached and securely seal against the collector housing. Also, unless you want to be covered in dust when removing dirty filters above chest height, look for collectors that allow removal at a comfortable, safe level. More information and a video on easy changing of filter cartridges can be viewed here.
